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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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 -
HK416, MR556 Rear Sight Drum for 14.5" and 16" Barrel
HKP HK Parts
$29.95HKP HK MR556/416 Rear Sight Drum 14.5&" & 16" Barrel Made in the USA.$29.95 -
HK416 Commercial OTB Buffer Tube HK E1 Stock Combo
H&K Heckler & Koch
$469.95HK 416 OTB E1 Stock & Buffer Tube Combo - Commercial Genuine HK 416 E1 commercial stock with the new style marine environment "over the beach" buffer tube. Buffer tube has ball bearing rollers to tighten the stock when locked in position, and helps...$469.95 -
$4.95 -
HK416, HK417, MR556, MR762 Eyelet Sling Adapter - RAL8000
H&K Heckler & Koch
$165.99H&K HK MR556/MR762/416/417 Eyelet Sling Adapter - RAL 8K New German HK Factory Eyelet Sling Adapter for Carrying Slings. Compatible With: HK MR556 HK 416 HK MR762 HK 417 HK G28$165.99 -
Ergo M-LOK Harris Bipod Mount
Ergo
$33.95M-LOK Harris Style Bipod Mount Features: Contoured to fit Harris-style bipods Black anodized 6061-T6 alum.$33.95 -
Out Of Stock
Ergo KeyMod Handstop
Ergo
$51.95KeyMod Hand Stop/Barricade Stop in Black Aggressive textured front for enhanced traction on barricades and obstacles Features: Low profile base also functions as a comfortable hand stop Black anodized 6061-T6 aluminum Compatible With: All KeyMod style...$51.95 -
Out Of Stock
HK416 A5, MR556 A4 Gas Vent Screw - 2.3mm
H&K Heckler & Koch
$29.95H&K MR556 A4/416 A5 2.3mm Gas Vent Screw German 2.3mm gas vent screw for MR556 A4. Provides more venting than the factory-installed 1.3mm screw. Compatible With: HK MR556 A4 HK416 A5$29.95