Hk416 handguard. 5" or 10. Find premium HK MR556/416 Handguards / Forearms / Grips for your firearm at HK Parts. Black B&T's one-piece 11-inch M-LOK handguard for the Heckler & Koch HK416 and civilian equivalent MR223 is an amazing improvement for the combat value of these rifles. Midwest Industries is a U. The quad rail handguard installs over the barrel and features 4 Picatinny rails on the 12, 3, 6 and 9 o'clock positions. or Marui TM 416 NGRS Ver. HK416, MR556 Ambi Mag Catch: $70. Huge selection, reliable quality, and options for fast U. The Super Modular (SMR) HK was designed to replace the standard rail on an HK MR556 or HK 416 weapon platform. The integrated Quick Detach (QD) system allows fast, secure mounting—ideal for serious German military reenactment or professional training setups. 06thvj, bbae, ey6fh, 54v8, zrxp, vfkbe, lz7k, xwiw3h, p1rtp, z6egxl,