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
HK416 A5, MR556 A4 Barrel - 5.56 / .223 - 16.5"
H&K Heckler & Koch
$389.95H&K HK MR556 A4/A5 16.5" Barrel This 16.5" factory H&K MR556 A4 barrel is cold hammer-forged from high-quality steel for exceptional durability, accuracy, and longevity. Manufactured to Heckler & Koch’s exacting standards, it features a...HKP-21931$389.95 -
HK416, MR556 Extractor - BLEMISHED
HKP HK Parts
$39.95HKP HK MR556/416 Extractor - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The HKP HK MR556/416 extractor is a precision-engineered component designed...HKP-21826-B$39.95 -
Out Of Stock
HK416, MR556 Barrel - 5.56 - 14.5" - Threaded 1/2"x28 - A5
Nefarious Arms
$594.95Nefarious Arms HK 416/MR556 14.5" A5 Barrel Each Nefarious Arms barrel is cold-hammer-forged and chrome-lined for years of accurate shooting. Grab this expertly crafted barrel for your next SBR or pistol build. Compatible With: HK 416 (A5,...HKP-21590$594.95 -
Out Of Stock
Picatinny Vertical Fixed Unigrip
B&T Brugger & Thomet
$119.00B&T Brugger and Thomet Vertical Fixed Unigrip for Swiss made B&T vertical forend grip for picatinny. Made of aluminum Will fit all mil-spec picatinny rails. Measures long. Specifications: Condition: Factory new Color: Black Material:...HKP-18043$119.00 -
HK416, MR556, HK417, MR762, G28 Sniper PSG1 Style Grip - Black
H&K Heckler & Koch
$134.95H&K HK MR556/MR762/416/417/G28 Sniper PSG1 Style Grip - Black HK German PSG1 style sniper factory. Each grip will fit all AR-15/M-16 Lower Receivers As Well. Superior fit & feel to any other grip on the market. HK has hit a home run with...HKP-17692$134.95 -
HK416 A5 Stripped Upper Receiver - RAL8000
H&K Heckler & Koch
$1,559.95HK German Un-Assembled - Stripped HK416 A5 Upper Receiver - RAL 8K Brand new factory German RAL 8000 HK416A5 upper receiver. Compatible With: HK416 HK MR556 HK MR223 Looking for a matching lower for your build? STS416 A5 LOWER - Specialized...HKP-18787$1,559.95 -
WOOX Vertical Grip - M-LOK
WOOX
$88.95WOOX HK Rifle, SMG M-LOK Vertical Grip This M-LOK vertical grip is a compact, ambidextrous foregrip made from American walnut with a reversible dual-wall design (vertical wall AND curved wall) to suit different grip styles. The checkered texture is...HKP-22464$88.95 -
WOOX M-LOK Rail Covers - Teardrop - GEN2
WOOX
$58.95 - $78.95WOOX GEN2 Teardrop M-LOK Rail Covers The teardrop M-LOK rail covers upgrade any M-LOK or KeyMod handguard with a warmer feel, more traction, and added heat protection, while bringing that signature wood look to your build. The GEN2 Teardrop pattern uses...HKP-22462-M$58.95 - $78.95 -
Rail Panel Cover - M-LOK - 3 Slot
JMK
$18.95 - $23.95JMK Rail Panel Cover - M-LOK - 3 Slot JMK M-LOK rail panels are compatible with platforms featuring M-LOK slots. These modular panels are suited for numerous applications. Each panel is sold individually. M-LOK panels are CNC-machined from solid...HKP-22403-M$18.95 - $23.95 -
Out Of Stock
HK416, MR556 Cleaning Kit - Green Pouch
H&K Heckler & Koch
$64.95H&K HK 416/MR556 Cleaning Kit with Green Pouch This is a genuine HK factory cleaning kit. Includes: Nylon storage bag, olive green Nylon brush Cleaning rod, 6 parts Barrel brush Chamber brush Oil brush Oil bottle, empty Cleaning wipes, 50 ea...HKP-21623$64.95 -
HK416, MR556 Super Modular Handguard - 10.5" - M-LOK
Geissele
$499.95Geissele 10.5" M-LOK Handguard for HK416 The super modular rail HK416 MK15 M-LOK was designed to replace the standard rail on an HK416 or MR556 weapon platform. The rail system utilizes the stock HK barrel nut, but incorporates the strength, rigidity...HKP-20327$499.95 -
HK416, MR556 Rail System - 13.75" - M-LOK, Picatinny - FDE
KDG Kinetic Development Group
$399.95Rail System - 13.75" - Brown - M-LOK - HK MR556 The New KDG HK 556 M-LOK rails are direct mount rail system, replacing the factory HK 556 rail systems. These new rails are identical in design to their big brother, the KDG HK 762 M-LOK Rail system. Like...HKP-19243$399.95