I've read 'M' could mean Mueller Industries Aug 23, 2015 · Diamond with a "B" forging - AR15. Jul 31, 2015 · A local machine shop showed me the forgings they buy, and the forging mark was on the area where the pistol grip attaches. C AF = Colt Alco Forge. Forged 7075 T6 Aluminum. 2. Features: M4 Feedramps. Laser engraved T-marks. Cardinal (stylized) = Cardinal Forge. MSRP: $ 131. May 22, 2009 · The keyhole forge mark mentioned above is from Cerro Forge. As M4A4 configuration with "M4" marks above the gas hole The upper receiver was devoid of the Colt "C" or forge markings, like the 733 upper receiver posted above. But hey. 2 are blank. (It is the less expensive one without T Marks. 8 SPC mag, a good mil-spec 7075 lower could work, but the builder would be better off taking a step up to a nice billet lower with a built-in tensioner screw to help reduce upper/lower wobble and yield a tighter fitment. Jan 8, 2014 · Upper receiver forge markings: Offset Square is: Brass Aluminum Forging LMT is: No Forge Marks, but marked LMT or L is: LMT AF is: Alcoa Forge C AF is: Colt Alco Forge A (splintered) = Anchor Harvey Aluminum C MB is: Colt / Mueller Brass Cardinal’s head (stylized bird head) is: Cardinal Forge CH is: Colt Harvey Aluminum Dec 5, 2012 · There would have to be other markings, like a C, FN, B, PSA, etc; or post a picture and someone may recall seeing or owning a barrel with similar stamping/engravings. You can also check the packaging or documentation that came with the upper for manufacturer information. For Cerro forge anyways (keyhole) Aug 25, 2014 · Upper receiver forge markings used by AR-15 upper manufactuers/sellers* DSA: Cardinal forge* Rock River: Cardinal forge* Delton: Cerro forge, square* DPMS: Cerro* Spikes Tactical: Cerro* Stag: Cardinal, Cerro* LWRC: splintered A* Para USA: ZM* Knight’s Armament: Cerro (keyhole)* Wilson Combat: splintered A* Double Star: Cerro* Smith &Wesson Circle "O" forge mark on upper receiver. Accepts all standard AR15/M16 components. Built to extremely precise tolerances, these Mar 20, 2009 · Quoted: It was rumored that Ruger made cast forgings for Essential Arms lowers years ago, nothing current AFAIK. Manufacturer: Tactical Machining. The inside has this teeth marks or lines going down really dont know how to explained it sorry. I purchased a stripped upper receiver from PSA new non blemished but unlike my other PSA receivers this one has a diamond with a B in the middle on the stripped upper receiver. Interesting thing is that there are no forge markings anywhere on the upper. As well, some of the pictured receivers do not have T-numbers. May 6, 2006 · The barrel is a 1970's or 1980's, because that is when the C FSB was used. Add to Wishlist. UPPER RECEIVER: Cage code & square forge mark (Brass Aluminum Forging Enterprises) No M4 mark at front face. LE6920-EPR CK complete upper half - Sep. thanks. "LMT = LMT, Lauer (old), DS Arms, PWA, Eagle, Knights Armament DetailsExpo Arms Stripped AR-15 Upper Receiver offers a high-quality option for the foundation of your upper build. Nov 7, 2018 · 842 posts · Joined 2009. 1. Supposedly they are LMT uppers, but are unmarked since they were sold for the civilian market. C AF is: Colt Alco Forge. Was sold as a Bushmaster. I recently bought a Palmetto State Armory Freedom rifle kit in which the upper receiver has no forge markings on it anywhere. Upper receiver forge markings: Offset Square is: Brass Aluminum Forging LMT is: No Forge Marks, but marked LMT or L is: LMT AF is: Alcoa Forge C AF is: Colt Alco Forge A (splintered) = Anchor Harvey Aluminum C MB is: Colt / Mueller Brass Cardinal’s head (stylized bird head) is: Cardinal Forge CH Feb 20, 2024 · The upper receiver is the top part of the AR-15 rifle that houses the barrel, bolt carrier group, and other key components. Anyone know the story with BCM Uppers having no Sep 30, 2008 · Quoted: Can anyone tell me a link to a list of stamp codes on upper recievers and what they mean. C MB = Colt / Mueller Brass. 3 oz. It fits perfectly on mil-spec lower receivers, and Apr 29, 2024 · T-marks on an AR-15 are reference marks found on the upper receiver of the rifle. Details. It has no bearing on the quality of the finished product, as all blank forgings must pass the same specs and material inspection standards before machining. Posted: 8/22/2015 10:43:59 PM EDT. It had the teardrop forward assist and did not have a brass deflector, though. Black carrier W/FA notches and "C" stamp. CH is: Colt Harvey Aluminum. Midwest Industries, Inc. May 11, 2014 · The forge mark denotes who suppled the raw chunck of forged aluminum that we machined into a receiver. Aug 26, 2018 · The M4 above the gas tube hole signifies that the receiver has M4 feed ramp cuts. Right side of the lower receiver, in front of the pistol grip. ARCHIVED; AR-15 Sep 18, 2022 · It have the Colt cage code & square forge (BAFE) on the M4 upper receiver, charging handle and cage code on the barrel. **These upper receiver may have cosmetic blemishes that do not affect function. Dec 12, 2015 · The raw forging has little to no impact on the final assembled quality of the upper. One of the recent hot-topics in the Colt collecting community has been Colt eliminating some of their production marks on their AR-15 rifle components. Feb 20, 2024 · Some other common forge markings found on AR-15 upper receivers include “C” for Colt, “L” for LMT (Lewis Machine & Tool), and “T” for Cerro Forge. [#6] its not a split "A", it's a stylized "H" with a small "A" above it. Jun 6, 2008 · ARCHIVED. $ 128. Oct 25, 2008 · This guide is specific to factory original Colt 603 barreled uppers. Posted: 9/2/2016 9:33:23 AM EDT. They made the raw forging onlythey did not machine or finish the upper to the form as you see it now. Aug 13, 2021 · Upper receiver forge markings: Offset Square is: Brass Aluminum Forging. Hartford barrels are button rifled and Chrome lined. $ 115. Cerro supplies raw forgings to many manufacturers-including Bushmaster, Colt, RRA and scads of others. Stripped Blemished AR-15 Upper Receiver. Posted: 7/30/2012 11:26:16 AM EDT. The M4 uppers are shown as in-stock for $40ea. The upper receiver appears to be a CK upper, Colt used those in the early 1970's. 4. (It is the less expensive one without T May 16, 2019 · Posted: 5/16/2019 6:39:16 AM EDT. is a U. Mil-spec anodized finish. AR Sponsor: [ARCHIVED THREAD] - Diamond with a "B" forging. They serve as an alignment guide for properly positioning the scope mount or other accessories on the rifle. Circle/Crooshairs w/"AR" = ArmaLite. Manufacturer: CERRO Forging Model: AR-15 / M4 / M-16 Caliber: . Dec 8, 2008 · Just picked up two new flat top uppers and one's a keyhole and one's a square. 3 out of 5 are anchor Harvey. Both of my FN M4A1 and FN M16A4 Complete Upper have a Square Forge mark and not a Key forge May 6, 2024 · To identify an AR-15 upper manufacturer, look for markings or engravings on the receiver, such as the company name, logo, or serial number. The gas tube is a modern type that has been grit blasted. AR-15 » AR Discussions. Check out our selection of AR upper receivers from top brands Aug 26, 2018 · The M4 above the gas tube hole signifies that the receiver has M4 feed ramp cuts. SKU: 21377 Categories: AR-15 Upper Receivers, AR15 & AR10 Upper Receivers. #7. 5 upper, LMT mpr upper, mlc upper & more. Posted: 12/8/2008 7:47:13 PM EDT. The Colt Canada barrel is stamped with a flat die. The upper receiver was devoid of the Colt "C" or forge markings, like the 733 upper Oct 27, 2020 · A keyhole or a square or an "M" shaped like diamond or? Today, our intrepid Smyth Busters, Brownells Gun Techs Steve Ostrem and Caleb Savant tackle a majo Upper receiver forge markings: Offset Square is: Brass Aluminum Forging. Add to cart. My upper is marked with a square forge mark. CH = Colt Harvey Aluminum. Forged from 7075-T6 aluminum, this stripped upper is precision machined to mil-spec M16/M4 specifications and features M4 feedramps. Oct 5, 2006 · My Bushmaster C7 style upper has the splintered “A” forge marking. Aug 25, 2014 · Upper receiver forge markings used by AR-15 upper manufactuers/sellers* DSA: Cardinal forge* Rock River: Cardinal forge* Delton: Cerro forge, square* DPMS: Cerro* Spikes Tactical: Cerro* Stag: Cardinal, Cerro* LWRC: splintered A* Para USA: ZM* Knight’s Armament: Cerro (keyhole)* Wilson Combat: splintered A* Double Star: Cerro* Smith &Wesson Jul 9, 2006 · The 'P' is located slightly higher than the 'M' and with the 'P' being pretty close to the left side of the scallop and the 'M' being extremely close to the right side of the scallop near the opening for the carry handle. It is usually not removed because of the aditional cost required to remove it correctly. Cerro Forge (Keyhole forge mark) AR-15 Flat Top Picatinny Rail Upper Receiver with M4 Feed Ramps. Almost all AR manufacturers will periodically use Anchor Harvey uppers, either for complete uppers/rifles or sold as stripped ones. The Forged and Stripped AR-15 Upper Receiver is the foundation of your upper build. Made in the USA. May 23, 2021 · FYI--For those wanting to identify who made their upper receiver. Description. All Forged AR Upper features PLUS. All that is necessary for trolls to flourish, is for good men to do Nov 5, 2004 · I get the feeling that the carry handle issue is much like the upper receiver issue - a handful of forging companies supplying raw forgings to the manufacturers, so it is very hard to tell the origin of any of them, unless they come installed on a factory sealed rifle. LMT 10. My mistake, you are correct, got my lingo mixed up, meant to say "cast lowers". 223 / 5. Colt delivered 603's to the US Army from the Spring of 1964 through 1982. LE6920-EPR CK conversion kit complete upper half (no sights) purchased 9/2021 with factory white & blue box. Apr 14, 2017 · Most AR's use 5 or 6 forging companies - AR15. The AR-15 Cerro Forged Stripped Upper Receiver is precision machined to M16/M4 Mil-Spec using top quality Cerro Forgings. AF is: Alcoa Forge. Keep in mind that a shop may machine the base forgings and put their own designs on them but the base forged receiver may have been supplied by one of the forging companies listed below. Forged 7075-T6 A3 AR upper is hard coat anodized black for durability. Received a stripped A3 upper today from Brownell's. Mar 8, 2008 · I built an AR-15, It is a stag lower, and I bought a kit from M&A Parts. I have 5 BCM M4 uppers. 00. A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed. Each BCM complete upper receiver group is fully assembled, head-spaced, and test-fired prior to shipping. Unless the receiver is marked by a manufacturer it's anybody's guess as to who finished it. Cardinal's head (stylized bird head) is: Cardinal Forge. 224V AR upper receiver with a 20-inch 416R stainless barrel and a 6. ARCHIVED. But there are some markings on it. Nov 7, 2018 · TNVC Aviation Grade L3Harris 2376+ FOM Unfilmed WP (ASU-M949 Refurbished) ** IN STOCK**. Two popular models are the Aero Precision with forward assist & ejection port door and the BCM M4 with laser T-marks. Jan 7, 2022 · Centurion Arms 13. This receiver accepts MIL-SPEC components, including forward assist and port door assemblies. It is marked 6T0238 inside the middle charging handle track, up near the cam pin cutout. On one receiver there is even a stamped “C” instead of a raised forge mark. They are separate and distinct product processes. [ARCHIVED THREAD] - Upper Receiver Forge Mark As such, the upper receiver group will show handling marks consistent with these quality control procedures. Now: $79. Categories: AR-15, UPPER RECEIVERS Tag: AR15. A Dialed-In Finish. Upper Receiver Forge Markings. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. The top is Engraved with T-marks. Free Bolt Carrier Group with Purchase of Upper Receiver Group. I just bought two of the WITHOUT M4 feed ramp uppers for $35ea. It is Colt/ Accurate Forge purchased by Cerro Forge. These days the market is so flooded with parts I don't even know what "blems" means so I agree with you there. Feb 20, 2024 · Look for the “C” marking and a forge code on the receiver, as well as a square forge mark near the ejection port. Here is the font on the Canadian barrel. I just received my Daniel Defense stripped upper receiver, that I ordered last week direct from Daniel Defense. CK = Colt / Kaiser Aluminum. Of the 4 I used, all have extremely tight upper to barrel fit, perfect feedramp/cut alignment, and fit well to various lowers. S. The FA was roughly half the thickness in the outside portion of the forging as compared to my BCM cerro, various other aero forges, palmetto, all listed above ect ect. barrel, gas block maybe this upper receiver. Here are the 3 new production Colt I bought in 2021 - 2022. I don't know howmany there are but I know I have two different ones and I was just curious to what the meaning is. The vague history of the different marks (forge marks on upper receivers, markings on the top of barrels, ‘F’ marks on front sight bases, etc Jan 25, 2009 · Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. Shop our wide selection of Lewis Machine & Tool upper receivers. Constructed from the sturdiest materials available, this receiver is crafted with a 7075-T6 aluminum forging to ensure accurate dimensions, boasts an M4-style feed ramp for outstanding feeding capabilities, and features a Mil-spec type 3 hard coat anodized finish assuring Apr 11, 2009 · ARCHIVED. Only 1 left in stock. The aluminum barrel block markings are normal for a arsenal rebuild. The forge mark gets milled away as part of the sizing/ cleaning up process. 38. Forged FSB used 1964-1970. Feb 16, 2014 · I have an used upper that I've been trying to identify, after extensive searching online and this forum I decided to see if anyone has seen this. What purpose do T-marks serve on an AR-15? T-marks help users align and position scope mounts and other accessories consistently on the rifle. The L-Keystone is the forge mark of Lakeside Forge IIRC. Cardinal’s head (stylized bird head) is: Cardinal Forge. I've read 'M' could mean Mueller Industries The Forged AT3 Upper is here, in a full array of Cerakote shades for your next custom build! This forged upper receiver features tried-and-true 7075-T6 construction with a full top rail, brass deflector, M4 feed ramps, and is manufactured to mil-spec dimensions with a hardcoat anodized finish. Added a much more adjustable rear sight, case deflector for left handed shooters, and retained the forward assist from the A1. I assume it is a forge code, but I cannot figure out where to. These two guys THAT ARE KNOWN COLT EXPERTS could be wrong. Read (1 review) Write a Review. Who makes it? I have searched here and Google and it is the only mark that isn't listed. manufacturer of quality tactical rifle accessories for the AR15/M16, AK47/74, Ruger SR-22, Ruger 10/22 and many others. C AF is not Alcoa. Installed forward assist. There's this raised star underneath the anodizing that I've never seen on any upper before, so I'm not sure that's a forge mark. credit for list below: Upper receiver forge markings: Offset Square is: Brass Aluminum Forging LMT is: No Forge Marks, but marked LMT or L is: LMT AF is: Alcoa Forge C AF is: Colt Alco Forge A (splintered) = Anchor Harvey Aluminum C MB is: Colt / Mueller Brass Cardinal’s head (stylized bird head) is: Cardinal Forge CH is: Colt Harvey Aluminum Crosshairs w/"AR" is: ArmaLite CK is: Colt Nov 28, 2017 · Both again were hypothetically functional, but were not blems either. The C MP C on the barrel and nothing on the front sight base. Feb 23, 2013. It has M4 feed ramps, no T marks, and the only marking is INSIDE the upper. Both of my FN M4A1 and FN M16A4 Complete Upper have a Square Forge mark and not a Key forge Sep 19, 2017 · C AF: Colt/ Accurate Forge(purchased by Cerro Forge in 2000) (keyhole): Cerro Forge A(splintered): Anchor Harvey" Ken Elmore to me. but i did a total new build with everything from Ballistic Jul 23, 2019 · Discontinued Manufacturing Marks Episode 1. Jul 30, 2012 · No t-marks either. Posted: 6/6/2008 12:21:50 PM EDT. You can choose from mil-spec upper receivers which are forged uppers. T-marks on the picatinny rail. Precision machined from 7075 aluminum, this stripped upper receiver is protected by a MIL-SPEC Type III Class 2 hardcoat anodized finish. . fltacoma May 14, 2022 · Canadian barrels were Cold Hammer Forged and Chrome Lined. [ARCHIVED THREAD] - Unmarked Upper Receiver. They are then finished with a uniform Mil-Spec Type III Their blems either have the same circle forge mark, a square (Brass Aluminum forge) Or a square with an F next to it for FN Herstal receivers. These upper receivers are high quality 7075 aluminum forged and hard coat military grade anodized, with milspec hardware. but i did a total new build with everything from Ballistic Jun 9, 2015 · AOP uppers are readily available; CDNN has complete AOP upper receivers on sale with both teardrop and round forward assists for $69. Posted: 11/7/2018 1:00:23 PM EDT. This may include, but is not limited to, forging marks under the finish, scratches, slight variation in the finish Feb 5, 2009 · I would like to know what brand it is made by, or have a link to a list of upper receiver marks. ) The ad said it was made in the USA by a milspec manufacturer, but the code identifying the forge is absent. This came from another Forum and you can make your own decision about what Lower or upper is better. 2021. This will go well with a Colt or FN or LMT lower. Installed ejection port door. Are there any specific markings to look for on a Colt upper receiver? The presence of a “C” marking and a forge code, along with a square forge mark, are indicative of a Colt upper receiver. R0901006CK AR-15A4 complete upper half with Magpul MOE rifle handguards - Oct. The Mega Arms Stripped AR-15 Upper Receiver is forged from heavy duty 7075-T6 aluminum and precision machined to Mil-Spec dimensions for compatibility with all your favorite parts. In addition, we have billet upper, M4 flat-top upper, AR15 striped upper or Spikes upper. Here is one on the upper receiver. Jan 13, 2018 · The demand is obviously insane, evidenced by all the new forge marks in the last few years. [#3] . I have only kept and built up one Mueller upper. (two actually, one for a friend). #1 · Nov 7, 2018. Sep 24, 2021 · The last time I looked, they had flattop receivers WITHOUT M4 feed ramps if you're building a true to spec M16A4 clone. The upper I received is not the upper they picture on their website. I just received a brand new BCM upper last night that doesn't seem to have a forge mark on the upper, or at least one that I recognize. MIL-SPEC TYPE II Hardcoat Anodized Black; Fits All AR-15/ M4 / M-16 Milspec Lower Receivers AR-15 Parts > Forged Upper Receivers Contract Forged 7075 A4 Upper Receiver, T-Marked quantity. (Limited Time Offer) BCM builds life-saving tools to meet the needs of professional soldiers, law enforcement, and responsible citizens. Aug 27, 2000 · The upper version features the A1 sight and forward assist, as found on a 6550. A2. All of the upper receivers pictured below are genuine Colt receivers and as you can see they do not all have a “C” forge mark. The Diemaco triangular letter "D" logo is forged, cast, and stamped on many of our parts. 250 takedown pin holes; Laser engraved T-marks; Includes: AR15 Stripped Upper Receiver in Anodized Black AR-15 Stripped Upper Receiver (No T Mark) Product Code: 10273. A (splintered) = Anchor Harvey Aluminum. There's the cardinal forge mark on the side of the upper receiver, but there's also an "M" marked on the front above where the gas tube/barrel attaches. [#1] Here is your list I don't think it is going to help you though. Can't ID the bolt group, not enough pictures. [#3] Keyhole is Cerro forge. Very similar to a Keystone forge code. LMT MRP-L LM8 AR-15 Upper Receiver Assembly - 7. Match this upper with any of our AR15 lower receivers for a solid and dependable fit. AR-15 Upper Receiver Forge Markings: A (Splintered) = Anchor Harvey Aluminum AF = Alcoa Forge Upper receiver forge markings: Offset Square is: Brass Aluminum Forging LMT is: No Forge Marks, but marked LMT or L is: LMT AF is: Alcoa Forge C AF is: Colt Alco Forge A (splintered) = Anchor Harvey Aluminum C MB is: Colt / Mueller Brass Cardinal's head (stylized bird head) is: Cardinal Forge CH is: Colt Harvey Aluminum Crosshairs w/"AR" is Nov 17, 2009 · Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. AO is the go to company for US SOCOM, FN, Noveske, LMT, SIG Sauer, and about 30 other AR "Maunfacturers" that claim they make their own receivers and BCGs. Posted: 4/14/2017 12:12:51 AM EDT. Match this upper with one of our AR15 lower receivers for a solid and dependable fit. These were originally roll marked XM16E1 until early 1967 when the US Army type classfied the 603 as the the Standard A M16A1. The Hartford barrel is Rollmarked. (yes, building an M16A4) I will let you know if they show up with dog bones. Don't waste your time or your money. Feb 15, 2017 · Upper receiver forge markings: Offset Square is: Brass Aluminum Forging. Out of stock. And a money maker. The upper & lower parked finish matches perfectly and is in very nice shape especially for it's age. In the recent past, I've had factory direct Bushamster uppers with Cerro, Anchor Harvey and no mark at all. Well, it isn't coming off. Both of my FN M4A1 and FN M16A4 Complete Upper have a Square Forge mark and not a Key forge mark. These are military grade uppers, which means there could be handling marks, and the finish might seem chalky. Cerro Forge AR15 Stripped Upper Receiver. The raw forging has little to no impact on the final assembled quality of the upper. Using a . Palmetto State Armory AR-15 Stealth upper receiver. Laser engraved white T-Marks. The Wilson Combat forged anodized AR-15 upper receiver guarantees dependable performance with its superior construction. What does the square symbolize on the upper receiver? The square often denotes compatibility with a particular type of handguard attachment system, making it easier for users to select the right accessories. Lettering over the sight wheel is raised, and it is an A1 upper receiver with forward assist. AF = Alcoa Forge. AR Sponsor: [ARCHIVED THREAD] - Most AR's use 5 or 6 forging companies. View Quote. Weight 8. Jul 27, 2016 · This dates to the brief period from about '68 to '69 when Colt was chroming the chamber, but not the bore (yet). Introduced in 1983. Circle "O" forge mark on upper receiver. First, these are roll marks from a standard Hartford based Colt 6721 barrel. Make a copy. An A4 receiver has no cuts, as rifle feed ramps don't reach the receiver. Was: $100. M4 feed ramps. AR-15 » AR Variants. So of course I made sure to source "keyhole" or "square" marked uppers for my 1st couple builds. AR Sponsor: Features. pretty much got ripped off on a completed upper everything was some cheap stuff thrown together. Mar 18, 2014 · My Colt 1971 SP-1 has no forge marks anywhere, just 2 faint inspection stamps in front and above the ejection port. the "A" is more of a triangle then anything like a letter A. Forging marks are not the end of your quest to find out who created the upper receiver of your AR 15 style firearm. [ARCHIVED THREAD] - UPPER RECEIVER ROLLING MARK. Bushmaster 16in patrolman's -- marked with an "M" above the gas tube hole. This is the correct answer. Here is a factory Colt upper with keyhole forge mark: Feb 20, 2024 · Look for the “C” marking and a forge code on the receiver, as well as a square forge mark near the ejection port. For this reason the keyhole cannot be used to accurately identify a specific brand. With the demand for ARs stateside, I imagine that sourcing forgings is a constant struggle. Jan 21, 2022 · When I 1st looked into AR upper forge marks, I read that the best forge Co. Posted: 11/6/2004 8:08:35 AM EDT. LMT is: No Forge Marks, but marked LMT or L is: LMT. The lower image is a late model that also featured the case delfector - Image courtesy Rambo. Where can I find the markings on an AR-15 upper receiver? Forged from 7075-T6 aluminum, this stripped upper is precision machined to mil-spec M16/M4 specifications and features M4 feedramps. Posted: 4/11/2009 2:54:46 PM EDT. This was on a government-supplied M16A1 obtained by a police department under the 1033 program (I converted it to semiauto only for the department). Posted: 12/5/2017 10:47:31 PM EDT. for suppliers. Shop our AR15 complete uppers below. There is no such thing as a CAST FORGING. 99. 5 inch M-LOK older model with 3 mounting bolts & white markings. Quantity in Stock: Out of Stock. Featuring M4 feedramp cuts and no T marks. It looks like a CMT upper with a Daniel Defense etch on the side. Cold Hammer Forged Barrels This process of manufacturing barrels has been used for European small arms for generations, and it is gaining popularity in the United States because of the increased barrel life and outstanding accuracy of a Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. Someone said this is used on new bushmasters and I bought this upper listed as a Double Star. COM. Add to Wish List. 56 NATO Finish: BLACK Sights: Picatinny Rail Condition: FACTORY NEW. The BKF AR15 Stripped Upper Receiver is our most popular product. Are upper receivers with “A” forge markings more expensive? The price of an upper receiver with an “A” forge marking will depend on various factors such as brand, materials, and Sep 2, 2016 · The "Keyhole" is the mark of Cerro Forge. " are the ones that use the "keyhole", & the one that uses the "square" is the 2nd best. C MB is: Colt / Mueller Brass. Active member. Precision machined from a 7075-T6 aluminum forging, this upper is protected by a MIL-SPEC Type III Class 2 hardcoat anodized finish. 3. Dec 25, 2003 · Subject: RE: Question on forging marks Yes, the last upper receiver in the photograph is one of ours (Diemaco). Tom Hortobagyi, PSE-----Original Message-----From: Jane Abell Sent: January 12, 2004 3:02 PM To: Tom Hortobagyi Subject: FW: Question on forging Jun 22, 2015 · 0. xa og ah le bt ii jq na tx ub