HK Rifle / SMG Parts

HK Rifle / SMG Parts

Elevate Your HK Rifle with Premium Parts – MP5, HK416, SP5, and More!

Enhance your HK rifle with top-notch parts and accessories. From HK MP5 and HK MP5K to HK SP5 and HK UMP or HK USC, we offer a vast selection. Discover high-quality magazines, binary triggers, stocks, grips, barrels, handguards, sights, and more for your firearm. Whether you own an HK416, HK SP5K, HK G36, or HK MP5 22, we have the Heckler and Koch rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.

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  • New - B&T Flash Hider w/Interface for Rotex IIA - M15x1 - .223 - HKP-22215 HK416, MR556 Flash Hider - ROTEX IIA - Threaded M15x1
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    HK416, MR556 Flash Hider - ROTEX IIA - Threaded M15x1

    B&T Brugger & Thomet

    $119.95
    B&T Brugger and Thomet's Flash Hider for your HK416, HK33, HK53, and HK93. Swiss-made B&T flash hider for all 5.56 / .223 firearms threaded in M15x1. Features a precision machined interface for Rotex IIA and Surefire suppressors. Compatible...
    HKP-22215
    $119.95
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    $119.95
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  • On Sale
    Used - H&K HK G3, 91, PTR Bolt Head Complete - Used - HKP-21902 HK91, G3, PTR Bolt Head Complete - Used
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    HK91, G3, PTR Bolt Head Complete - Used

    H&K Heckler & Koch

    Now: $78.95
    Was: $99.95
    German HK G3 & HK 91 & PTR Bolt Head Complete - Used German Date Coded Made in Germany. Each used bolt head is complete with all parts installed & 100% functional. Taken from live demilled German HK G3 rifles. Each bolt head is in good shape...
    HKP-21902
    Now: $78.95
    Was: $99.95
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    Now: $78.95
    Was: $99.95
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  • New - PTR HK 91/G3 (7.62x51/.308) Tactical Forearm - Low Profile - HKP-21806 HK91, G3 Tactical Handguard - Low Profile
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    HK91, G3 Tactical Handguard - Low Profile

    PTR

    $109.95
    PTR HK 91/G3 (7.62x51/.308) Tactical Forearm - Low Profile Made from aircraft-grade aluminum, rock-solid, and lightweight. This forearm allows you to add up to 3 rails on your firearm. That includes the left, right, as well as bottom sides, with the...
    HKP-21806-M
    $109.95
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    $109.95
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  • New - SchleTek Firearm Cleaning & Tuning Kit - HKP-21732 HK Firearm Cleaning and Tuning Kit
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    HK Firearm Cleaning and Tuning Kit

    SchleTek

    $69.95
    SchleTek Firearm Cleaning & Tuning Kit The SchleTek Firearm Cleaning & Tuning Kit is an all-in-one solution for maintaining peak performance and reliability in your firearms. Designed for both professionals and enthusiasts, this comprehensive kit...
    HKP-21732
    $69.95
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  • Out Of Stock
    New - B&T NATO A2 to HUB Suppressor Adapter - HKP-21723 B&T NATO A2 to HUB Suppressor Adapter

    B&T NATO A2 to HUB Suppressor Adapter

    B&T Brugger & Thomet

    $250.00
    B&T NATO A2 to HUB Suppressor Adapter Stainless steel adapter that connects NATO-spec A2 flash hiders to any 1.375x24 TPI HUB-compatible suppressor. Features a gate lock and ratchet system for secure, repeatable mounting—used by NATO forces...
    HKP-21723
    $250.00
    Out Of Stock
    Qty in Cart: 0
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    $250.00
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  • B&T 1/2x28 Direct Thread to Hub Adapter B&T 1/2x28 Direct Thread to Hub Adapter
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    B&T 1/2x28 Direct Thread to Hub Adapter

    B&T Brugger & Thomet

    $89.95
    B&T Direct Thread 1/2x28 Hub Adapter Convert any 1/2x28 RH threaded barrel to accept Hub devices with this direct fit adapter. Compatible With: HK MP5, MP5K, SP5, SP5K HK MR556 HK UMP 9mm B&T APC223, SPC223 B&T APC9K B&T GMH9...
    HKP-21506
    $89.95
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    $89.95
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  • On Sale
    New - Magpul HK MP5K Adapter Brace with Stock - HKP-21412-M HK MP5K Stock with Direct Fit Adapter
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    HK MP5K Stock with Direct Fit Adapter

    Magpul

    Now: $149.95
    Was: $199.95
    Magpul HK MP5K Stock with Direct Fit Adapter MP5K DT Magpul stock ready to drop in on any in-spec MP5K receiver or clone. We take our AR MP5K Adapter and attach it onto a mil-spec buffer tube. We then drop it on to the new Magpul DT Carbine stock. This...
    HKP-21412-M
    Now: $149.95
    Was: $199.95
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    Now: $149.95
    Was: $199.95
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  • New - Omega HK UMP Rear Sight Complete - HKP-21266
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    HK UMP Rear Sight Complete

    OMEGA

    $39.95
    Omega HK UMP Rear Sight Complete: All the parts needed for the rear sight on a Gideon Shadow UMP style build. New USA made parts for your build.   Will only work with Gideon Shadow. Locking screw will not work with a German UMP receiver, DEF Gunz or...
    HKP-21266
    $39.95
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  • Out Of Stock
    New - HKP HK UMP Stock Block - B Push Pin - HKP-21249 HK UMP Stock Block B Push Pin

    HK UMP Stock Block B Push Pin

    HKP HK Parts

    $34.95
    Stock Block B Sling Pin With Loop washer & Quick Pull Pin for UMP/USC (.40 S&W/ .45 ACP/9mm)   
    HKP-21249
    $34.95
    Out Of Stock
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  • On Sale
    New - TPM 6.5mm Titanium Full Port Muzzle Brake - Threaded 5/8x24 - HKP-20768 6.5mm Titanium Full Port Muzzle Brake - Threaded 5/8x24
"
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    6.5mm Titanium Full Port Muzzle Brake - Threaded 5/8x24 "

    Tactical Precision MFG

    Now: $42.95
    Was: $84.99
    TPM 6.5mm Titanium Full Port Muzzle Brake - Threaded 5/8x24 This lightweight titanium muzzle brake is designed by a master gunsmith and is one of the best on the market. The spiral port outlets along with the parabolic internal taper significantly...
    HKP-20768
    Now: $42.95
    Was: $84.99
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    Now: $42.95
    Was: $84.99
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  • Out Of Stock
    New - HKP HK UMP 2 Position Lower Grip Frame - Black - HKP-19382 HK UMP 2 Position Lower Grip Frame

    HK UMP 2 Position Lower Grip Frame

    HKP HK Parts

    $179.95
    UMP - 2 Position Lower Grip Frame New UMP Lower. 2 position settings (S,F). Perfect for all your own internals. This item is ideal for the USC to UMP conversion or to keep as a spare. Each lower fits & works with the 45, 40 & 9mm calibers using...
    HKP-19382
    $179.95
    Out Of Stock
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    $179.95
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  • New - HKP HK G36, G36K Folding Stock - FDE - HKP-19298 HKP HK G36, G36K Folding Stock - FDE
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    HKP HK G36, G36K Folding Stock - FDE

    HKP HK Parts

    $109.95
    Folding Stock - HK G36, G36K - Full Length Stock HK G36 10.5" Stock complete for G36 firearms. The G36/G36K stock is the longest stock option for the G36 family of firearms. For those that would like a shorter stock to choose the G36C length stock. Each...
    HKP-19298
    $109.95
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    $109.95
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