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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T1 Optic Mount - Picatinny - Quick Release
AIM
$49.95AimSports - T1 Quick Release Mount - Absolute Co-Witness Features a machined recoil lug and steel hardware to prevent wear between mounting surfaces. Utilizing a quick release base, the generously sized lever is textured for easy operation under any...$49.95 -
HK416 Handguard - Super Modular M-LOK - 14.5"- DDC
Geissele
$549.9514.5" HK416 Super Modular Rail M-LOK - DDC (Desert Dirt Color) The Super Modular Rail HK416 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...$549.95 -
Out Of Stock
HK416 Upper Receiver
HKP HK Parts
$489.95US Made Complete HK 416, MR556 Style Upper Receiver New US made HK416/MR556 style upper receiver. Includes: Upper receiver Forward assist assembly Ejection port door assembly Piston guide Compatible With: HK MR556 HK MR223 HK 416 Need a...$489.95 -
Out Of Stock
Picatinny Optic Mount - Sidelok - Aimpoint T1, T2, H1, H2 - HK logo
KDG Kinetic Development Group
$138.95Kinetic Development Group Sidelok Aimpoint Micro Mount - HK logo The Sidelok is a revolutionary new mounting system for optics. The patented cam system locks the mount down onto Picatinny without the need of tools, side levers, or huge knobs. The release...$138.95 -
Ergo 1 1/2" Harris Bipod Slide Mount With Sling Stud
Ergo
$19.95Ergo 1 1/2" Harris Bipod Slide Mount With Sling Stud The ERGO 1.5" Bipod Slide Mount slides onto 1913 Picatinny rail, allowing shooters to mount a variety of rail accessories, including swivels or bipods. Features: Slides onto Picatinny rails and held...$19.95 -
HK416, MR556, AR-15 Commercial Buffer Tube Kit
HKP HK Parts
$47.95AR-15 Commercial Buffer Tube Kit Compatible With: HK MR556 & 416 All AR-15 style platforms Includes: Made with T7 7075 aircraft-grade aluminum Made in the USA with a polished inside tube Mil-Spec triple hard coat Teflon anodized...$47.95 -
Out Of Stock
HK416, MR556, HK417, MR762 Pistol Grip - PSG1 Style
H&K Heckler & Koch
$99.95H&K PSG1 Style Grip Factory H&K PSG1-style grip, offering improved comfort and control for precision shooting. Features: Textured surface for enhanced grip stability Ergonomic design reduces hand fatigue Adjustable palm shelf for customizable...$99.95 -
AR, M4 Magazine - TMAG Gen 3 - 20 Round - Translucent OD Green
Magpul
$24.95Magpul AR/M4 TMAG® 20 Round GEN M3™ Magazine - Translucent OD Green US-made translucent 20 round magazine optimized for AR/M4 platforms, but modified to permit operation with other 5.56 and .223 STANAG-compatible rifles. Specifications: Made...$24.95 -
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...$389.95 -
Out Of Stock
HK MR556 A4 Gas Block - Complete
H&K Heckler & Koch
$237.95H&K HK MR556 A4 Gas Block - Complete Factory HK MR556 A4 adjustable gas block ideal for switching between suppressed and unsuppressed firing. Compatible With: HK MR556 A4 Nefarious Arms A5 barrels Features: Genuine H&K factory...$237.95 -
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...$64.95 -
HK Universal Polymer 3.25" Rail
H&K Heckler & Koch
$59.95HK Universal Polymer Rail With Screws for the G36E, SL8, USC, UMP HK German manufacture. New universal picatinny rail for forward section or forearm. Compatible With: G36E SL8 USC UMP All variants Specifications: Length: 3.25"$59.95