H&K Heckler & Koch

HK 416 A3 Extended Forearm With Integrated Flip Up Front Sight: HK designed & manufactured in Germany 11" HK416 A5, MR556 extended quad rail. This drop in unit offers 2 full inches in extra...

HK 416A5 SEMI & MR556 Ambidextrous Selector Lever Set Complete - RAL 8000 New HK German manufacture. Complete kit to upgrade the selector lever set on the MR556 to the newer HK 416A5 semi style...

HK German 10.4" Upper Gas Block Complete New Vented Style New HK German manufacture newest "VENTED" version direct from HK Germany. Great upgrade part for existing 10.4" uppers that have the older...

H&K HK MR556 & 416 Mil-Spec German E1 Rear Stock - Black The HK E1 Buttstock fits mil-spec buffer tubes (receiver extensions) for M4/AR15-type weapons. Each stock comes with the convex...

Fits HK MR556A1, HK416, AR15 and all high quality AR/M4/M16 type firearms. Heckler & Koch reliability and durability in a 30 round 5.56 mm Polymer Magazine at a special price.Designed to provide...

HK 416/MR556 30 Round Magazine - RAL 8000 Heckler & Koch reliability and durability in a 30 round 5.56 mm Polymer Magazine. Designed to provide optimal ammunition feeding for any M16/M4/AR15-type...

HK MR556 & HK 416 Handguard Rail System Screw This is the hex head version for any metric Allen hex head that can be utilized to tighten and release the screw pressure...

HK416 Factory Handguard Rail System Screw  This part has the "X" marked version where the bolt head and/or the HK sling hook tool can be utilized to tighten and release the...

HK German 416 & MR556 Full Auto Hammer This is the hammer and spring assembly with no side bushing included.  Compatible With: HK MR556 HK 416 Please Note: This batch homes from HK and...

H&K 416/417 & MR556/762 A5 Grip V2 - RAL 8000 Compatible With: HK 416/416-A5/MR556 HK 417/417-A2/MR762 HK M27 HK G28 AR-15, M4, & M16 Platforms Please Note: Color representation is...

H&K (5.56/.223) Compensator Flash Hider - Threaded 1/2x28 Full birdcage style is the real deal. Threaded 1/2x28 for use on all HK 416, MR556 and other AR style applications. Great flash hider...

HK MR556 & HK 416 Barrel Nut Or Socket For Barrel All steel barrel nut. This item is a must-have repair and replacement part for removal or when you have any work done to your barrel, as the...