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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  • On Sale
    New - Strike Industries HK416 .22LR Crux KeyMod 9" Handguard - Black - HKP-17347 Side profile view of the Strike Industries HK416 .22LR Crux KeyMod 9-inch handguard in black with full-length top Picatinny rail.
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    HK416 Handguard - 9" Crux KeyMod - .22LR

    Strike Industries

    Now: $159.95
    Was: $249.95
    Strike Industries CRUX KeyMod Handguard for HK416 .22 LR - 9 Inch Lightweight 9-inch KeyMod handguard designed for HK416, HK MR556, and HK416 .22 platforms. This rail system reduces overall front-end weight compared to the factory assembly while...
    HKP-17347
    Now: $159.95
    Was: $249.95
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    Now: $159.95
    Was: $249.95
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  • Out Of Stock
    New - H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Notched Disk - 3 Position - HKP-01854 HK UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Notched Disk - 3 Position

    HK UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Notched Disk - 3 Position

    H&K Heckler & Koch

    $0.00
    HK Ratched Wheel Notched Disk For 3 Position Lowers Compatible With: HK G36 HK UMP
    HKP-01854
    $0.00
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Rear Sight - Incomplete - HKP-16372 HK UMP/USC (.40 S&W/.45 ACP/9mm) Rear Sight - Incomplete
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    HK UMP/USC (.40 S&W/.45 ACP/9mm) Rear Sight - Incomplete

    H&K Heckler & Koch

    $49.95
    H&K UMP/USC (.40 S&W/.45 ACP/9mm) Rear Sight - Incomplete
    HKP-16372
    $49.95
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    $49.95
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  • Out Of Stock
    New - MM HK UMP (9mm) Barrel - 16.5 Inch - HKP-02282

    HK UMP Barrel - 9mm - 16.5 Inch

    Michaels Machines

    $549.95
    MM HK UMP (9mm) Barrel - 16.5 Inch   Fluted just like the factory HK barrels with 16 flutes.
    HKP-02282
    $549.95
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    $549.95
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  • Out Of Stock
    New - H&K 21E/23E (7.62x51/.308) & (5.56/.223) Carry Handle - HKP-00576

    HK21E, HK23E Carry Handle

    H&K Heckler & Koch

    $0.00
    HK German HK21E, HK23E Carry Handle New HK German factory HK carry handle for the HK21E, HK23E series of firearms. This offering is the handle only. The carry handle can also be adapted to standard HK21 models as well as the following firearms. HK21...
    HKP-00576
    $0.00
    Out Of Stock
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  • New - PTR PDW (7.62x51/.308) 9 inch Barrel - HKP-02788 PTR PDW Barrel - 7.62 / .308 - 9" - SBR
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    PTR PDW Barrel - 7.62 / .308 - 9" - SBR

    PTR

    $189.99
    PTR PDW .308 Pistol or SBR Barrel- USA This part comes new in the white, never installed, and ready for the HK project. Features: Just under 9" inches long 1:10 twist U.S. made barrel counts as one 922r compliant part Please Note: Front sight towers...
    HKP-02788
    $189.99
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    $189.99
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  • Out Of Stock
    New - HKP PTR-32 (7.62x39) Complete Bolt Group - PDW - HKP-17387 HK PTR-32 Bolt Group - Complete - PDW

    HK PTR-32 Bolt Group - Complete - PDW

    HKP HK Parts

    $379.95
    US Made PTR 32 PDW Bolt Group Complete Semi-Auto. Factory correct bolt head and locking piece for use in the PTR 32 chambered in 7.62X39. Brand new May 2015 manufacture. This is the correct bolt for all PTR PDW with 8" barrels.
    HKP-17387
    $379.95
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    $379.95
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  • New - H&K 53 (5.56/.223) Frangible Ammunition Adapter - 15x1 - HKP-16978 HK 53 (5.56/.223) Frangible Ammunition Adapter - 15x1
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    HK 53 (5.56/.223) Frangible Ammunition Adapter - 15x1

    H&K Heckler & Koch

    $149.95
    New HK 53 Factory 4 Prong Frangible Ammunition Adapter - 15x1 RH Get your hands on one of the last HK factory frangible adapters while we still have remaining inventory of this limited item.  This part is no longer in production so once they are...
    HKP-16978
    $149.95
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    $149.95
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  • New - RCM MP5K 40/10 Full Auto Bolt Carrier - HKP-01826 HK MP5K Bolt Carrier - Full Auto - .40 S&W / 10mm
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    HK MP5K Bolt Carrier - Full Auto - .40 S&W / 10mm

    RCM

    $157.95
    MP5K 40/10 Full Auto Bolt Carrier - Latest Upgraded Version This part is built from billet ordnance steel. This US-made MP5K 40,10 style carrier is made with Tungsten and is heat-treated, providing the finest American-made carrier...
    HKP-01826
    $157.95
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    $157.95
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  • New - H&K MP5 .40 S&W Parts Kit - HKP-16719
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    HK MP5 Parts Kit - .40 S&W

    HKP HK Parts

    $2,959.95
    HK MP5 .40 Pistol German Parts Kit - Used. Genuine German HK MP5 40 parts kit in the pistol configuration Includes: Barrel - 3 lugged & threaded, cold hammer-forged Trigger Group - Ambidextrous Navy 0,1, F Trigger Group or SEF Navy your choice A1...
    HKP-16719
    $2,959.95
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    $2,959.95
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  • New - H&K MP5-A2 .40 S&W German Parts Kit - HKP-00891
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    HK MP5 German Parts Kit - .40 S&W - A2 Stock

    HKP HK Parts

    $3,979.95
    HK MP5 40 S&W A German Parts Kit - Used Includes: Barrel - 3 lugs, threaded, and cold hammer-forged Trigger Group - Ambidextrous Navy 0,1, F Trigger Group A2 Fixed Stock Bolt Group Mp5 40 F/A Forearm - Standard wide black polymer Rear Sight...
    HKP-00891
    $3,979.95
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    $3,979.95
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  • Out Of Stock
    New - H&K MP5K 40/10 3 Position Navy Style Housing - Clipped & Pinned - HKP-15454 HK MP5K Trigger Housing - 3 Position Navy Style - Clipped and Pinned - .40 S&W / 10mm

    HK MP5K Trigger Housing - 3 Position Navy Style - Clipped and Pinned - .40 S&W / 10mm

    H&K Heckler & Koch

    $0.00
    H&K MP5K 40/10 3 Position Navy Style Housing - Clipped & Pinned This lower housing is clipped and pinned for use on a semi-auto receiver shelves. For more information on our clipping and pinning, see our services section. We offer the best...
    HKP-15454
    $0.00
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