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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Out Of Stock
HK Factory Hard Case
H&K Heckler & Koch
$0.00H&K Factory Hard Case H&K hard shell case. This is the perfect case that will guarantee to protect your most prized possessions. Only a few in stock so get them before they are all gone. Compatible With: MR762 MR556 USC SL8 rifles any rifle...HKP-20564$0.00 -
HK MR556, MR762 Fixed Tactical Sling Adapter
H&K Heckler & Koch
$86.95HK MR556 & MR762 Factory Sling Adapter - Fixed Factory HK German design & the finest design available & made to last. New HK manufactured part to allow the factory HK416, MR762 slings to fit & work on the MR556, MR762 as this adds...HKP-17553$86.95 -
HK416, HK417 Buttstock Release Lever
H&K Heckler & Koch
$21.95Heckler and Koch Buttstock Release Lever HK416 and HK417 The buttstock release lever locks the telescopic buttstock to the tubular rear buttstock extension. The buttstock is adjustable in length in 6 positionsHKP-18948$21.95 -
On Sale
HK416, MR556 Buffer Spring - Enhanced - USED
H&K Heckler & Koch
Now: $9.95Was: $23.95HK416, MR556 Buffer Spring - Enhanced - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. The HK MR556/416 buffer spring will also work with other AR-15 and M-16 rifles. It is a high-wear item and a...HKP-00039-USEDNow: $9.95Was: $23.95 -
HK MR556, MR223 Upper Receiver - BLEMISHED
H&K Heckler & Koch
$695.95HK MR556, MR223 Upper Receiver - BLEMISHED ONLY 1 UNIT AVAILABLE - AS PICTURED MISSING FORWARD ASSIST AND GAS PISTON COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE...HKP-16950-BL-B$695.95 -
On Sale
HK416, MR556 Handguard - 12.5" - M-LOK - FDE
H&K Heckler & Koch
Now: $386.95Was: $429.95H&K HK MR556/HK416 12.5" M-LOK Compatible Handguard Manufactured by HK from aircraft grade aluminum with a hard coat anodized finish, this M-LOK handguard is designed for the Heckler & Koch MR556 & HK 416 rifles chambered in 5.56x45mm and ...HKP-99323Now: $386.95Was: $429.95 -
Picatinny Optic Mount Shield - Aimpoint T1, H1 - S.W.O.R.D.S
Frost Defense
$239.95Aimpoint T-1, H-1 Optic Mount - S.W.O.R.D.S - Picatinny Mount The S.W.O.R.D.S Enhanced optic shield designed for Aimpoint T1, H1 red dot sights. This patent-pending mount system provides robust glare and impact protection by surrounding the ocular and...HKP-22340-M$239.95 -
HK416, MR556 Flash Hider - Cloak - Threaded 1/2x28
Strike Industries
$44.95Strike Industries HK416/MR556 Cloak Flash Hider - 1/2x28 Strike Industries Cloak flash hider offers a compact, efficient design that disperses gas flow to minimize visible flash, especially in low light. It reduces muzzle flash to preserve night vision,...HKP-22260$44.95 -
HK MR556 A4 Gas Block- Incomplete
H&K Heckler & Koch
$187.00H&K HK MR556 A4 Gas Block - Incomplete The H&K HK MR556 A4 Gas Block is a high-quality, precision-machined component designed for the MR556 A4 rifle. It houses the gas system that directs gas from the barrel to cycle the action. Compatible...HKP-22087$187.00 -
HK MR556 Barrel - 5.56 / .223 - 16" - Complete Upper
H&K Heckler & Koch
$989.95HK MR556 16" Complete Upper Barrel Factory HK MR556 16" barrel, complete with a factory-installed barrel nut, gas block and flash hider. Every component is brand new and meticulously crafted, guaranteeing top-notch quality. This barrel is the ultimate...HKP-21805$989.95 -
HK416, MR556 Magazine Locking Plate
H&K Heckler & Koch
$9.95Heckler and Koch German HK MR556 and HK416 Magazine Locking PlateHKP-13484$9.95 -
HK416, MR556 Free Floating Handguard - 14.5" - M-LOK - Super Modular
Geissele
$549.95Geissele MK15 Free Floating M-LOK Handguard for HK416 and MR556 - 14.5" - Desert Dirt Color Geissele Automatics MK15 free float handguard for HK416 and MR556 platforms. Designed as a direct-fit upgrade for compatible rifles, it provides a rigid mounting...HKP-22853$549.95