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 - H&K HK MR556 A4 16.5" Barrel - HKP-21931 HK416 A5, MR556 A4 Barrel - 5.56 / .223 - 16.5"

    HK416 A5, MR556 A4 Barrel - 5.56 / .223 - 16.5"

    H&K Heckler & Koch

    $389.95
    H&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...
    HKP-21931
    $389.95
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  • On Sale
    New - HKP HK MR556/416 Extractor - BLEMISHED - HKP-21826-B HK416, MR556 Extractor - BLEMISHED
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    HK416, MR556 Extractor - BLEMISHED

    HKP HK Parts

    Now: $24.95
    Was: $39.95
    HKP HK MR556/416 Extractor - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The HKP HK MR556/416 extractor is a precision-engineered component designed...
    HKP-21826-B
    Now: $24.95
    Was: $39.95
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    New - Nefarious Arms HK 416/MR556 14.5" A5 Barrel - HKP-21590 HK416, MR556 Barrel - 5.56 - 14.5" - Threaded 1/2"x28 - A5

    HK416, MR556 Barrel - 5.56 - 14.5" - Threaded 1/2"x28 - A5

    Nefarious Arms

    $594.95
    Nefarious Arms HK 416/MR556 14.5" A5 Barrel Each Nefarious Arms barrel is cold-hammer-forged and chrome-lined for years of accurate shooting.  Grab this expertly crafted barrel for your next SBR or pistol build.  Compatible With: HK 416 (A5,...
    HKP-21590
    $594.95
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    New - B&T Vertical Fixed Unigrip - Black - HKP-18043

    Picatinny Vertical Fixed Unigrip

    B&T Brugger & Thomet

    $119.00
    B&T Brugger and Thomet Vertical Fixed Unigrip for  Swiss made B&T vertical forend grip for picatinny. Made of aluminum Will fit all mil-spec picatinny rails. Measures long. Specifications: Condition: Factory new Color: Black Material:...
    HKP-18043
    $119.00
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    $119.00
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  • On Sale
    Used - H&K German Leather Sling - Well Used with No Loop - HKP-20583 HK G3 Leather Sling - Well Used with No Loop
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    HK G3 Leather Sling - Well Used with No Loop

    H&K Heckler & Koch

    Now: $35.95
    Was: $39.80
    Original Surplus German HK Leather - Well Used with No Loop Pulled from German military G3 rifles. Last of the remaining units, get them before they are gone. Compatible With: HK91, G3 PTR91, CETMEHK93 HK33, HK53 HK94 MP5 HK clones Other custom...
    HKP-20583
    Now: $35.95
    Was: $39.80
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    New - Geissele HK 416 Super Modular M-LOK 14.5" Rail - DDC - HKP-19808 HK416 Handguard - Super Modular M-LOK - 14.5"- DDC
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    HK416 Handguard - Super Modular M-LOK - 14.5"- DDC

    Geissele

    Now: $467.95
    Was: $549.95
    14.5" 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...
    HKP-19808
    Now: $467.95
    Was: $549.95
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    New - H&K HK MR556/416 Axis Rivet - HKP-16776
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    HK416, MR556 Axis Rivet

    H&K Heckler & Koch

    Now: $4.45
    Was: $4.95
    H&K HK MR556/416 Axis Rivet New HK German HK 416 Rivet. Compatible With: HK MR556 HK 416  
    HKP-16776
    Now: $4.45
    Was: $4.95
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  • On Sale
    New - H&K 416A5 RAL 8K Stripped Upper Receiver - HKP-18787 HK416 A5 Stripped Upper Receiver - RAL8000
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    HK416 A5 Stripped Upper Receiver - RAL8000

    H&K Heckler & Koch

    Now: $1,403.95
    Was: $1,559.95
    HK German Un-Assembled - Stripped HK416 A5 Upper Receiver - RAL 8K Brand new factory German RAL 8000 HK416A5 upper receiver. Compatible With: HK416 HK MR556 HK MR223 Looking for a matching lower for your build?  STS416 A5 LOWER - Specialized...
    HKP-18787
    Now: $1,403.95
    Was: $1,559.95
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    New - SchleTek Carbon Cleaner 150 ml Pump - HKP-21729
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    Carbon-Cleaner - 150 ml Pump

    SchleTek

    Now: $14.95
    Was: $16.95
    SchleTek Carbon Cleaner 150 ml Pump SchleTek Carbon Cleaner is a powerful, fast-acting solution designed to remove stubborn carbon buildup from firearms, suppressors, bolts, gas systems, and other precision components. Its advanced formula penetrates...
    HKP-21729
    Now: $14.95
    Was: $16.95
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    New - H&K HK 416/MR556 Cleaning Kit with Green Pouch - HKP-21623 HK416, MR556 Cleaning Kit - Green Pouch

    HK416, MR556 Cleaning Kit - Green Pouch

    H&K Heckler & Koch

    $64.95
    H&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...
    HKP-21623
    $64.95
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    $64.95
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  • On Sale
    New - Geissele HK 416 10.5" M-LOK Handguard - Black - HKP-20327 HK416, MR556 Super Modular Handguard - 10.5" - M-LOK
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    HK416, MR556 Super Modular Handguard - 10.5" - M-LOK

    Geissele

    Now: $449.95
    Was: $499.95
    Geissele 10.5" M-LOK Handguard for HK416 The super modular rail HK416 MK15 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 the strength, rigidity...
    HKP-20327
    Now: $449.95
    Was: $499.95
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  • On Sale
    New - KDG HK MR556 13.75" M-LOK Rail System - FDE - HKP-19243 HK416, MR556 Rail System - 13.75" - M-LOK, Picatinny - FDE
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    HK416, MR556 Rail System - 13.75" - M-LOK, Picatinny - FDE

    KDG Kinetic Development Group

    Now: $339.95
    Was: $399.95
    Rail System - 13.75" - Brown - M-LOK - HK MR556 The New KDG HK 556 M-LOK rails are direct mount rail system, replacing the factory HK 556 rail systems. These new rails are identical in design to their big brother, the KDG HK 762 M-LOK Rail system. Like...
    HKP-19243
    Now: $339.95
    Was: $399.95
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    Was: $399.95
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