HK416 / MR556 Series
Our extensive collection boasts a wide array of HK MR556 and HK 416 parts, including precision HK MR556 Barrels and durable HK 416 Stocks. Elevate your rifle's functionality with HK 416 Handguards and HK MR556 Triggers, designed for the discerning shooter seeking top-tier performance.
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HK MR556, MR762 Buttstock Release Lever Insert
H&K Heckler & Koch
$26.95H&K HK MR556/MR762 Buttstock Release Lever Insert Compatible With: HK MR556 HK MR762$26.95 -
Out Of Stock
HK416 Vented Gas Block for 14.5" Barrels
H&K Heckler & Koch
$249.95HK German 416, MR556 14.5" & 16.5" & 20" Gas Block Complete This is the factory-correct gas block with the ambi sling attachment points, as well as the bayonet lug milled into the gas block. Perfect for those who want to swap the MR556 gas block...$249.95 -
HK416 Upper Receiver Kit - 10.4" - Date Coded - OTB - USED
H&K Heckler & Koch
$3,789.95H&K 416 10.4" Date Coded OTB Upper Parts Kit - USED Genuine HK 416 10.4″ date coded used upper parts kit with a factory German 10.4″ barrel with the new Over The Beach (OTB) features (vented gas block, quad rail forearm). Finish...$3,789.95 -
HK MP5, MP5K Optic Mount, ACRO P-1, P-2 - Picatinny
HKP HK Parts
$98.95HKP HK MP5, MP5K Aimpoint ACRO Picatinny Sight Mount The HKP Aimpoint ACRO Picatinny mount is a rugged, low-profile solution for mounting your ACRO red dot sight. Designed to fit any firearm with a Picatinny rail. It ensures a secure fit, optimal sight...$98.95 -
HK MR556, MR762 Ribbon for Buttstock
H&K Heckler & Koch
$53.95H&K MR556A1, MR762A1 Ribbon for Buttstock Factory HK ribbon used for sling attachment. Can also be used on the E1 Buttstock. Compatible With: HK MR556/416 MR762/417$53.95 -
HK416 A5, MR556 A4 Barrel - 5.56 - 11" - Threaded 1/2"x28 - A5
Nefarious Arms
$594.95Nefarious Arms HK MR556/HK416 11" A5 Barrel ***THE BARREL EXTENSION RIM IS MARKED "HAUS" DUE TO AN ERROR BY THE BARREL EXTENSION SUPPLIER. THE MARKING IS NOT VISIBLE ONCE INSTALLED. THESE BARRELS ARE GENUINE NEFARIOUS BARRELS AS NEFARIOUS...$594.95 -
HK416, G3, G36 Flash Hider - 15x1 RH - Rotex Interface - B&T
B&T Brugger & Thomet
$144.99B&T Flash Hider with Interface for Rotex III/V/VA Swiss-made flash hider compatible with NATO A2 suppressor mounting HUB's. Specifications: Made in Switzerland Threaded M15x1 RH NATO spec Does not include face shims Compatible With: HK416,...$144.99 -
HK 416, HK MR556 Folding Front Sight for Handguard
H&K Heckler & Koch
$134.95Folding Front Sight - German - HK416, MR556 Handguards German HK built in folding front sight for the forearms/handguards.$134.95 -
HK416, MR556 Firing Pin Catch - Titanium
HKP HK Parts
$49.95HK MR556 & HK416 Firing Pin - Titanium Made in the US from grade 6 Titanium. Get the lightest, strongest firing pin available for your HK firearm. Compatible With: HK MR556 HK416 HK M27$49.95 -
Out Of Stock
HK Ambidextrous Sling - Green
H&K Heckler & Koch
$149.95HK Ambidextrous Sling - Green This sling is the factory HK Green 1.25" Ambi Sling with dual HK sling hooks for use on either the left or right side of the weapon. Best used with the ambi sling pins as the option shown below. Can be used on nearly...$149.95 -
On Sale
Harris Bipod Mount - KeyMod Handguard
Ergo
Now: $7.46Was: $38.95Ergo Harris Bipod Mount - KeyMod Handguard Features: KeyMod Bipod Mount Black anodized 6061-T6 Alum. Compatible With: Harris-style bipodsNow: $7.46Was: $38.95 -
HK MR556 A4 Hammer - Incomplete - Semi-Auto
H&K Heckler & Koch
$43.95Heckler and Koch Hammer for HK MR556 Semi-Auto rifles Factory-original German steel hammer for MR556 A4 rifles. Designed as a direct replacement for worn or damaged hammers in MR556 A1 and A4 trigger assemblies. Compatible With: MR556A1 MR556...$43.95