HK416 / MR556 Series

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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  • New - HKP (5.56/.223) Bore Cleaning Brush - HKP-03331
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    HK Bore Cleaning Brush - 5.56 / .223

    HKP HK Parts

    $1.95
    Bore Cleaning Brush For .223/556 Calibers  
    $1.95
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    $1.95
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  • New - H&K MR556 A4/416 A5 1.9mm Gas Vent Screw - HKP-22050
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    HK416 A5, MR556 A4 Gas Vent Screw - 1.9mm

    H&K Heckler & Koch

    $32.99
    H&K MR556 A4/416 A5 1.9mm Gas Vent Screw German 1.9mm gas vent screw for MR556 A4. Provides more venting than the factory-installed 1.3mm screw. Compatible With: HK MR556 A4 HK416 A5
    $32.99
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  • New - B&T Multitasker Twist - Pocket Multi-Tool - HKP-21747 B&T Multitasker Twist - Pocket Multi-Tool
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    B&T Multitasker Twist - Pocket Multi-Tool

    B&T Brugger & Thomet

    $59.95
    B&T Multitasker Twist Pen-shaped multitool for weapon maintenance and optics/sight adjustments. CNC machined from 6063 T-6 aluminum, Type III Mil-spec Anodized. Features: Aimpoint Micro T1/T2 turret adjuster on rear cap Pocket clip/light-duty...
    $59.95
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  • New - Nefarious Arms HK 416/MR556 11" A3 Barrel - HKP-21619 HK416, MR556 Barrel - 5.56 - 11" - Threaded 1/2"x28 - A3
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    HK416, MR556 Barrel - 5.56 - 11" - Threaded 1/2"x28 - A3

    Nefarious Arms

    $594.95
    Nefarious Arms HK 416/MR556 11" A3 Barrel ***THE BARREL EXTENSION RIM IS MARKED "HAUS" DUE TO AN ERROR BY THE BARREL EXTENSION SUPPLIER.  THE MARKING IS NOT VISIBLE ONCE INSTALLED.  THESE BARRELS ARE GENUINE NEFARIOUS BARRELS AS NEFARIOUS WILL...
    $594.95
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    New - GSG9 HK416, MR556 Firing Pin - HKP-20650 HK416, MR556 Firing Pin - Silver

    HK416, MR556 Firing Pin - Silver

    GSG9

    $34.95
    Firing Pin for HK 416 & MR556 Firearm - USA - GSG9 US made HK 416 & MR556 Made from hardened stainless steel. Compatible With: HK416 HK MR556 HK CR556 HK M27
    $34.95
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  • New - H&K HK MR556/HK416 12.5" M-LOK Compatible Handguard - HKP-19695 HK416, MR556 M-LOK Compatible Handguard - 12.5"
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    HK416, MR556 M-LOK Compatible Handguard - 12.5"

    H&K Heckler & Koch

    $224.95
    H&K HK MR556/HK416 12.5" M-LOK Compatible Handguard Manufactured by HK from aircraft grade aluminum with a black hard coat anodized finish, this M-LOK handguard is designed for the Heckler & Koch MR556 & HK 416 rifles chambered in 5.56x45mm...
    $224.95
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  • New - Ergo M-LOK QD Sling Mount - HKP-17875
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    Ergo M-LOK QD Sling Mount

    Ergo

    $24.95
    Ergo M-LOK QD Sling Mount   Compatible with any firearm featuring M-LOK attachment points.
    $24.95
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  • New - H&K MR556/MR762 A4 Safety Lever - Right - HKP-21966 HK MR556, MR762 A4 Safety Lever - Right
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    HK MR556, MR762 A4 Safety Lever - Right

    H&K Heckler & Koch

    $13.95
    H&K MR556/MR762 A4 Safety Lever - Right H&K factory right-side selector lever for MR-series ambidextrous safety systems.  Compatible With: HK MR762 A1/A4 HK MR556 A1/A4
    $13.95
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  • New - B&T Unigrip QD with Bipod - Aluminum - HKP-21596-M B&T Unigrip QD with Bipod - Aluminum
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    B&T Unigrip QD with Bipod - Aluminum

    B&T Brugger & Thomet

    $224.99
    B&T Unigrip QD with Bipod - Aluminum This B&T foregrip features a retractable bipod for superior weapon stability in both the standing and prone positions. Specifications: Condition: Factory new Material: Aluminum Heat deflection...
    $224.99
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  • New - MI Blast Can - 1/2x28 Thread (5.56/9mm) - HKP-21535 MI Blast Can - 1/2x28 Thread (5.56/9mm)
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    MI Blast Can - 1/2x28 Thread (5.56/9mm)

    MI Midwest Industries

    $38.95
    MI Blast Can 1/2x28 Thread (5.56/9mm) Specifications: Directs muzzle blast forward on short barrel rifles and pistols. Does not reduce recoil or flash. Constructed from 6061 aluminum, and hardcoat anodized for a lifetime of service 1/2x28 threads for 5...
    $38.95
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  • New - B&T Unigrip QD with Bipod - HKP-21387-M B&T Unigrip QD with Bipod
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    B&T Unigrip QD with Bipod

    B&T Brugger & Thomet

    $225.00
    B&T Unigrip QD with Bipod This B&T foregrip features a retractable bipod for superior weapon stability in both the standing and prone positions. Specifications: Condition: Factory new Material: Polymer/alloy Heat deflection temperature:...
    $225.00
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  • New - Strike Industries 1913 Picatinny Backup Sights - HKP-21314 Backup Sights - Picatinny
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    Backup Sights - Picatinny

    Strike Industries

    $84.95
    Strike Industries 1913 Picatinny Backup Sights Features: Built-in backup sights when flipped down for quick target acquisition Low-profile and low snag design Toolless adjustments of windage and elevation Quick sliding dual aperture rear sight...
    $84.95
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