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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HK 95mm Picatinny Rail Cover
H&K Heckler & Koch
$29.95HK Rubber Picatinny Rail Cover - 95mm New factory HK rubberized Picatinny rail cover. Specifications: Rail cover dimensions: 95x26x7 mm Compatible With: HK Picatinny rails Other Picatinny railed applicationsHKP-18858$29.95 -
HK416, MR556 E2 Buttstock - Commercial, Factory German
H&K Heckler & Koch
$249.95HK416, MR556 Factory German E2 Stock - Commercial HK German Stock For All HK 416, MR556 Rifles The HKE2 Buttstock fits Commercial buffer tubes (receiver extensions) for M4/AR15 type weapons and has the concave style removable buttpad installed...HKP-18360$249.95 -
Magpul RSA - Rail Sling Attachment
Magpul
$29.95Magpul RSA - Rail Sling Attachment Attaches to Picatinny rails for an additional point of attachment for slings.HKP-02423$29.95 -
HK MR556 A4 Upper Receiver Kit - 16.5″ - 5.56 - M-LOK
H&K Heckler & Koch
$1,939.00H&K MR556 A4 16.5″ 5.56 M-LOK Upper Receiver Kit This kit includes a complete upper receiver/barrel assembly, allowing Mil-Spec 5.56mm AR-style rifles to be retrofitted to HK’s piston and pusher rod system. This system utilizes a piston...HKP-21909$1,939.00 -
HK416, MR556 Stabilizing Brace - SBA5
SB Tactical
$123.95SB Tactical SBA5 Brace The SBA5 Pistol Stabilizing Brace is 5-position adjustable and designed for all platforms capable of accepting a mil-spec carbine receiver extension. Featuring an integral, ambidextrous QD sling socket and an arm cuff based on the...HKP-21794-M$123.95 -
HK416, MR556, HK417, MR762 Trigger Axle
H&K Heckler & Koch
$19.95H&K HK MR556/MR762/417/416 Trigger Axle Axle for Trigger. Compatible With: HK MR556 HK 416 HK MR762 HK 417HKP-16623$19.95 -
Out Of Stock
HK416, MR556 9" Quad Rail
H&K Heckler & Koch
$419.95H&K HK 416/MR556 9" Quad Rail HK German 416, MR556 Quad Rail without mounting screw. Specifications: Length: 9 1/4" Color: charcoal gray Compatible With: HK MR556 HK 416HKP-16858$419.95 -
HK416, MR556, HK417, MR762 Handguard Locking Screw - A1 Style
H&K Heckler & Koch
$24.95Heckler and Koch A1 Handguard Rail System Screw for HK416, HK MR556, HK417, and HK MR762 Factory HK handguard rail screw for A1 handguards. Compatible With: HK416 A1, MR556 A1 HK417 A1, MR762 A1 (2 required per handguard)HKP-02717$24.95 -
Out Of Stock
HK416, MR556, HK417, MR762 Tactical Grip
Ergo
$54.95Ergo Grip PSG1 Style Grip For MR556 & MR762 Just in and a great upgrade if you want the PSG1 style grip frame for your HK MR556, MR762 & HK416, HK417, G28 firearm. The ergonomically enhanced ERGO Tactical Deluxe Grips fits all AR15, M16 and MR...HKP-17131$54.95 -
HK416, MR556 Extractor Axle Pin
H&K Heckler & Koch
$11.95HK MR556 & 416 Extractor Axle Pin This factory HK German part holds the extractor in place on the bolt head. This item needs to be changed each time it is removed per HK. Compatible With: HK MR556 HK 416 M27 HK 416 A5HKP-00040$11.95 -
HK416 Retractable Buttstock - Factory
H&K Heckler & Koch
$129.95HK 416 & AR15 6 Position Retractable Stock New HK Marked 6 position AR15 commercial stock. This stock fits all commercial AR-15/M16 buffer tubes. The stock telescopes expands and retracts to 6 locked positions. Marked with the HK logo and...HKP-00049$129.95 -
Out Of Stock
HK G3, HK417 Muzzle Brake - SOCOM - Threaded 5/8x24
Surefire
$164.95SureFire SOCOM (7.62x51/.308) Muzzle Brake - Threaded 5/8x24 The SureFire muzzle brake is designed for Armalite AR-10, DPMS LR308, and other 7.62 mm rifles with 5/8x24 muzzle threads. It greatly reduces recoil impulse and muzzle rise, featuring neutral...HKP-19789$164.95