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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On Sale
HK 416, MR556, G36, SL8 Gas Piston
Nefarious Arms
Now: $67.45Was: $74.95Nefarious Arms HK G36/SL8/HK 416/MR556 Gas Piston A great spare, upgrade, or replacement part for your HK. Includes 3 piston rings for a complete drop in replacement part. TiN coated gold for added protection and an overall great part. Compatible...Now: $67.45Was: $74.95 -
On Sale
HKP HK 416 Ejection Port Axle
H&K Heckler & Koch
Now: $4.46Was: $4.95Ejection Port Axle - Steel- HK 416 New HK USA manufacture for the HK 416 family of firearms. This is the axle that holds the ejection port cover in place on the upper receiver.Now: $4.46Was: $4.95 -
On Sale
HK416, MR556 Piston Guide - Threaded - Upper Receiver
H&K Heckler & Koch
Now: $17.95Was: $19.95HK MR556 & 416 Upper Receiver Threaded Piston Guide Compatible With: HK MR556 HK 416 HK M27Now: $17.95Was: $19.95 -
Out Of StockOn Sale
HK Universal Harris Bipod Adapter
H&K Heckler & Koch
Now: $179.95Was: $199.95HK Factory Harris Bipod Adapter - Low Profile This adapter is to attach the Harris bipod to any Picatinny rail. It is compatible with all Picatinny railed forearms or applications. A new HK German manufactured part made for the HK 416, MR556, HK417...Now: $179.95Was: $199.95 -
Out Of StockOn Sale
HK416, MR556 Magazine Release Button
H&K Heckler & Koch
Now: $15.25Was: $16.95H&K HK MR556/416 Magazine Release Button New HK German Manufacture. Compatible With: HK MR556 HK416 AR15, M4 & M16 firearmsNow: $15.25Was: $16.95 -
On Sale
HK416, HK417, MR556, MR762 Bolt Catch Spring
H&K Heckler & Koch
Now: $6.25Was: $6.95H&K HK MR556/762/416/417 Bolt Catch Spring Compatible With: HK MR556 HK 416 HK MR762 HK 417Now: $6.25Was: $6.95 -
On Sale
HK416, HK417, MR556, MR762 Clamping Sleeve
H&K Heckler & Koch
Now: $5.36Was: $5.95H&K HK 416/417/MR556/MR762 Clamping Sleeve Compatible With: HK416 HK417 MR556 MR762Now: $5.36Was: $5.95 -
On Sale
HK416, MR556, HK417, MR762 Pistol Grip with Tools - RAL8000
H&K Heckler & Koch
Now: $143.95Was: $159.95Heckler and Koch's Pistol Grip With Tools - RAL 8000 HK German grip with HK tools stowed in the grip's storage compartment. Finish your HK build with our favorite grip or upgrade your AR-15 platform. Compatible With: HK 416 HK MR556 HK417 HK...Now: $143.95Was: $159.95 -
On Sale
HKP 2 Point Leather Sling - Black
HKP HK Parts
Now: $39.96Was: $49.95HKP 2 Point Leather Sling - Black These new HK Parts 2-point slings are based off of the original German HK design that are no longer offered. This is a 1st time offering, handcrafted by a German artisan. Made in the USA from quality leather and hardware...Now: $39.96Was: $49.95 -
On Sale
Picatinny Optic Mount - RMR, SRO
Trijicon
Now: $98.95Was: $109.95Trijicon Low Picatinny Rail Mount for RMR/SRO - RM33 Low Picatinny rail mount for RMR/SRO. Includes: Mount Optic mounting screws Distance From Top of Mounting Rail to Optical Axis: RMR: 0.768" SRO: 1.009" Slimline mounts, fits Picatinny railNow: $98.95Was: $109.95 -
On Sale
HK416A5, MR556 Enhanced Incomplete Trigger Guard
H&K Heckler & Koch
Now: $22.95Was: $39.95Enhanced HK Trigger Guard Upgrade Incomplete - A5 - HK416 & HK MR556 Upgrade your MR556, HK416 & CR556 to the latest gen HK416 A5 enhanced trigger guard. Enlarged trigger guard area to use with gloves. Please Note: This item is...Now: $22.95Was: $39.95 -
On Sale
HK416A5, MR556 Ambidextrous Complete Selector Lever Set - RAL8000
H&K Heckler & Koch
Now: $170.95Was: $189.95HK416A5 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 HK416A5 semi style of levers. Includes: HK416A5 semi or MR556 Axle HK416A5...Now: $170.95Was: $189.95