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 MR556, MR223 A5 Incomplete Upper Receiver
H&K Heckler & Koch
$489.95HK German Un-Assembled/Stripped HK MR556/MR223 A5 Upper Receiver Factory HK MR556 A5 upper receiver. This is the semi-auto MR556 variant. Compatible With: HK MR556 HK MR223 HK 416*** Need a matching lower for your build? STS416 A5 LOWER -...HKP-18785$489.95 -
HK416, MR556 QD Handguard - A4 Style - 10"
H&K Heckler & Koch
$497.95H&K HK416, MR556 A4 10" Quick Disconnect Handguard Factory HK A4 handguard featuring HK's A4 quick disconnect latch. Compatible with A1 and A4 rifles. Features: Quick disconnect latch for tool-free removal and installation 12 o'clock Picatinny...HKP-22426$497.95 -
On Sale
HK416, MR556 CQC Pistol Grip - Walnut
JMK
Now: $59.96Was: $78.95JMK HK416, MR556 CQC pistol grip - Walnut The CQC pistol grip by JMK is crafted from CNC-machined black walnut. After machining, the grip is dyed to a uniform color and finished with a catalyzed satin seal. These grips are compatible with any firearm...HKP-22401-MNow: $59.96Was: $78.95 -
On Sale
HK416 A5 Bolt Carrier
H&K Heckler & Koch
Now: $1,549.95Was: $1,997.95H&K HK416 A5 Bolt Carrier Factory HK416 A5 full auto bolt carrier. This carrier is backwards compatible with earlier HK416 A1 and A3 variants. Features the updated captive firing pin retaining system. Compatible With: HK416 A5 HK416 A1 HK416...HKP-22328Now: $1,549.95Was: $1,997.95 -
HK MR556 A4 Upper, Complete - Full Auto and Ejection Door
H&K Heckler & Koch
$845.95HK Heckler and Koch A4 Complete Upper with Full Auto Ejection Door for HK MR556 The HK MR556 A4 Complete Upper is a superior factory assembly that comes fully equipped with a forward assist and an ejection port door, providing unparalleled reliability...HKP-21929$845.95 -
On Sale
B&T APR308 Deployment Bag - With Sling
B&T Brugger & Thomet
Now: $199.95Was: $349.95B&T APR308 Deployment Bag - With Sling Hidden for years in an unmarked crate, these genuine B&T contracted deployment cases are perfect for keeping your valuable B&T APR rifle safe and secure. The cases were made in Poland by NFM Group...HKP-21881Now: $199.95Was: $349.95 -
Out Of Stock
HK416, MR556 Assembly Wrench Tool
H&K Heckler & Koch
$699.95H&K HK 416 & HK MR556 Assembly Wrench Tool Factory HK German multi-tool for the HK416 and MR556. The perfect tool for a complete breakdown.HKP-20616$699.95 -
Out Of Stock
HK416, MR556 Upper 8" 416C Style Conversion Kit
HKP HK Parts
$1,285.95Upper Conversion Kit for HK416 and MR556 8 inch barrel - HK 416C Style Finally an answer for all of those that have been wanting as close to the original, rare unicorn of a find HK 416C 8" barrel conversion kit for 416 or MR556. Each conversion kit...HKP-18629$1,285.95 -
On Sale
HK416, MR556 Handguard - 9" - HKey
H&K Heckler & Koch
Now: $289.95Was: $399.95H&K HK MR556/416 9" Modular Rail System - Black HK German MR556 & CR556 handguard that accepts the HKey style modular rail sections. This handguard is compatible with the OSS suppressor system. HK has discontinued this handguard. Only have a few...HKP-17341Now: $289.95Was: $399.95 -
WOOX Angled Grip - M-LOK - AFG
WOOX
$88.95WOOX M-LOK Angled Grip Compact angled foregrip for M-LOK handguards, built with a reversible dual-wall structure and checkered texture for a secure, consistent support-hand index. Features: Flat-bottom design for added stability and...HKP-22465$88.95 -
HK416, MR556 Handguard - 12.5" - M-LOK - Tropentarn
H&K Heckler & Koch
$488.95H&K HK MR556/HK 416 12.5" M-LOK Handguard - Tropentarn New HK German manufactured handguard for the HK 416 and MR556 firearm. ONLY 3 AVAILABLE Compatible With: HK MR556 HK 416HKP-99327$488.95 -
Out Of Stock
HK416, MR556 Bayonet Adapter - M27 Style
H&K Heckler & Koch
$61.95Heckler and Koch Bayonet Adapter HK416, MR556 for M27 Build OEM bayonet adapter for HK416 and MR556 rifles for M27-style builds. Mounts to the barrel assembly to accept a standard bayonet. Specifications Bayonet adapter only (roll pin sold...HKP-22191$61.95