H&K Heckler & Koch

H&K HK MR556/HK416 FFRS Retaining Spring The retainer spring retains the handguard locking pin on the Free Floating Rail System (FFRS). These can become damaged with the removal of the handguard...

H&K HK MR556/416 Firing Pin   New HK German manufactured. This is a great item to have on hand as the firing pin is one of the most abused components in the HK MR556 and HK 416 weapon...

HK MR556/416 Firing Pin Catch   Compatible With: HK MR556 HK 416  

H&K ( 5.56/.223) Flash Hider - Threaded 1/2x28 This flash hider is threaded 1/2x28 for use on all HK 416, MR556, and other AR-style applications. It is a great flash hider to use to upgrade the...

Heckler and Koch's Factory Correct Flash Hider - Threaded 15x1 RH Fits all HK barrels. 15x1 The right-hand thread is the thread pitch. Perfect for the SL8 and G36 type conversions...

H&K HK MR556/416 Forward Assist Plunger Pin  

HK MR556 & 416 Front Sight Roll Pin  

HK 416 & MR556 Gas Block Pin This is the retaining pin for an HK 416 gas block. A must-have, as HK recommends using new pins once they are removed or damaged.  Size: 5 x 18 mm.

H&K HK MR556/416 H-Key Complete Short Handguard Slim line handguard with H-Key mounting slots, short. Compatible With: All 11", 14.5", 16.5", & 20" models HK MR556 HK 416/416 A5

H&K HK MR556/416 H-Key Complete Short Handguard - FDE Slim line handguard with H-Key mounting slots, short. Compatible With: All 11", 14.5", 16.5", & 20" models HK MR556 HK 416/416 A5

HK MR556/416 Extended 11" Quad Rail  This drop-in unit offers two full inches in extra length, not the standard 9" rail that comes with the HK 416/MR556, but an extended 11" rail that...

H&K HK MR556/HK416 12.5" M-LOK Compatible Handguard Manufactured by HK from aircraft grade aluminum, this M-LOK handguard is designed for the Heckler & Koch MR556 & HK 416 rifles. This...