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 - Geissele HK 416 Super Modular M-LOK 10.5" Rail - DDC - HKP-19805 Geissele HK 416 Super Modular M-LOK 10.5" Rail - DDC
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    Geissele HK 416 Super Modular M-LOK 10.5" Rail - DDC

    Geissele

    $504.00
    10.5" HK416 Handguard M-LOK 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 and modularity...
    HKP-19805
    $504.00
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    $504.00
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  • New - Bore Boss Pull-Through Bore Cleaner - .44/.45 - HKP-19401 Bore Boss Pull-Through Bore Cleaner - .44 / .45 ACP
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    Bore Boss Pull-Through Bore Cleaner - .44 / .45 ACP

    Real Avid

    $12.95
    Real Avid Bore Boss Pull-Through Bore Cleaner - .44/.45 From the barrel of innovation comes the ultra-compact Bore Boss, the first-ever self-storing, easy-feeding, clean-pulling, field-ready, hassle-free, pure-genius bore cleaner. The single-piece cable...
    HKP-19401
    $12.95
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    $12.95
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  • New - HKP HK UMP, HK USC Lower Axle - HKP-19383
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    HK UMP, USC Lower Axle Pin

    H&K Heckler & Koch

    $9.95
    HK UMP & USC Lower Axle Pin - US 3 lower axle pins are used for each trigger group or lower all the same size with the exception of the mag release axle on the USC.
    HKP-19383
    $9.95
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    $9.95
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  • New - Tapco HK 416/MR556/AR15 Stock Wrench - HKP-02407 HK416, MR556, AR15 Stock Wrench
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    HK416, MR556, AR15 Stock Wrench

    Tapco

    $32.95
    Tapco HK 416, MR556, & AR15 Stock Wrench This tool includes a Mil-Spec castle nut wrench, a standard-length receiver extension removal wrench, and an A1/A2 Flash Suppressor wrench. This offers an improved grip, and each tool has a...
    HKP-02407
    $32.95
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    $32.95
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  • New - HKP HK UMP/USC (.40 S&W/.45 ACP/9mm) Complete Recoil Rod Assembly - HKP-17989 HK UMP, USC Recoil Rod Complete Assembly - 9mm / .40 S&W / .45 ACP - US Made
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    HK UMP, USC Recoil Rod Complete Assembly - 9mm / .40 S&W / .45 ACP - US Made

    HKP HK Parts

    $59.95
    HK USC, UMP 45/40/9mm Recoil Spring/Rod Assembly New USA made recoil assembly complete. Our design allows for easy repair and replacement of the recoil spring itself without replacing the entire recoil assembly as found on the German recoil assemblies...
    HKP-17989
    $59.95
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    $59.95
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  • Out Of Stock
    New - PTR HK 91/G3/PTR-91 (7.62x51/.308) GI-K Barrel - Threaded 5/8x24 RH - HKP-16632 HK91, G3 Barrel - 7.62 / .308 - 16" - Threaded 5/8x24 RH

    HK91, G3 Barrel - 7.62 / .308 - 16" - Threaded 5/8x24 RH

    PTR

    $190.99
    PTR HK 91/G3/PTR-91 (7.62x51/.308) GI-K Barrel - Threaded 5/8x24 RH PTR/91 US made G.I. specification 16.35" barrel Threaded 5/8 x 24. You get to use standard G3, HK91 forearms and cocking tubes with the shortness of a 16" barrel. This is the perfect...
    HKP-16632
    $190.99
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    $190.99
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  • Used - H&K 91/G3 (7.62x51/.308) F/A Bolt Carrier - Tungsten Filled - Surplus - HKP-01998 HK91, G3 Bolt Carrier - Full Auto - Tungsten Filled - Surplus
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    HK91, G3 Bolt Carrier - Full Auto - Tungsten Filled - Surplus

    H&K Heckler & Koch

    $249.95
    HK Factory F/A Tungsten Filled Bolt Carrier Used German Surplus  The tungsten upgrade is ideal for those with bolt bounce issues or who want the smoothest carrier for FA use. These carriers are all used and in good shape and need to be refinished...
    HKP-01998
    $249.95
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    $249.95
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  • New - HKP MP5 9mm Pistol Build Kit With Flat, Top Rail & Weldment Set - HKP-18039
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    HK MP5 Parts Kit - Pistol Build - Receiver Flat and Weldment Set - 9mm

    HKP HK Parts

    $1,699.95
    MP5 9mm Pistol Build Kit Complete German & USA Made Parts MP5 9mm parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts to be legal as a pistol (N/A) rifle, or SBR...
    HKP-18039
    $1,699.95
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    $1,699.95
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  • New - H&K 93,33,53 and MP5 A2 Fixed Stock - HKP-21818-M HK33, HK53, HK93, MP5 A2 Fixed Stock
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    HK33, HK53, HK93, MP5 A2 Fixed Stock

    H&K Heckler & Koch

    $139.95
    H&K 93,33,53  and MP5 A2 Fixed Stock This H&K G3 stock section and buttpad combo is designed to enhance the functionality and comfort of your HK 93,53 and MP5 firearm. The stock section provides improved strength and stability, while the...
    HKP-21818-M
    $139.95
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    $139.95
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  • New - SB Tactical HK UMP & B&T APC Pistol Stabilizing Brace - Black - HKP-20084 HK UMP & B&T APC Pistol Stabilizing Brace
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    HK UMP & B&T APC Pistol Stabilizing Brace

    SB Tactical

    $59.95
    SB Tactical HK UMP Pistol Stabilizing Brace The second generation of the SBT and enhances your B&T APC, HK UMP, or LWRCi SMG45 with an integral, right side-folding mechanism and an arm cuff based on the SB-Mini.  The SBT-G2 provides you with all...
    HKP-20084
    $59.95
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    $59.95
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  • New - Bore Boss Pull-Through Bore Cleaner - .357/9mm/.38 - HKP-19400 Bore Boss Pull-Through Bore Cleaner - 9mm / .357 / .38
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    Bore Boss Pull-Through Bore Cleaner - 9mm / .357 / .38

    Real Avid

    $10.95
    Real Avid Bore Boss Pull-Through Bore Cleaner - .357/9mm/.38 From the barrel of innovation comes the ultra-compact Bore Boss, the first-ever self-storing, easy-feeding, clean-pulling, field-ready, hassle-free, pure-genius bore cleaner. The single-piece...
    HKP-19400
    $10.95
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    $10.95
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  • New - H&K HK MR762/417/G28 Ambidextrous Sling Adapter - HKP-16994 HK417 MR762, G28 Ambidextrous Sling Adapter
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    HK417 MR762, G28 Ambidextrous Sling Adapter

    H&K Heckler & Koch

    $129.95
    H&K HK MR762/417/G28 Ambidextrous Sling Adapter HK German manufactured MR762, MR308 & HK 417 Sling Adapter Backplate. This backplate has ambidextrous sling attachment points for both the left and right side of the firearm. Compatible With: HK...
    HKP-16994
    $129.95
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    $129.95
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