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 - H&K MR762 A4 Pivot Pin - HKP-21958 HK417, MR762 Takedown Pin - Front - A4 Style
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    HK417, MR762 Takedown Pin - Front - A4 Style

    H&K Heckler & Koch

    $40.95
    H&K MR762 A4 Receiver Front Takedown Pin German-made factory pivot pin for the MR762 A4.  Will work with A1 models as well. Compatible With: HK MR762 A1 and A4 HK417  
    HKP-21958
    $40.95
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    $40.95
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  • New - H&K HK 416/MR556 Adaptive Battle Grip Panel Kit - HKP-21802 HK416, MR556, HK417, MR762 Pistol Grip Panel Kit
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    HK416, MR556, HK417, MR762 Pistol Grip Panel Kit

    H&K Heckler & Koch

    $72.99
    HK Heckler and Koch's Adaptive Pistol Grip Panel Kit with small and large sizes. The standard HK grip comes fitted with medium sized removable grip panels.  This adaptive pistol grip kit supplies a full set of small and large interchangeable grip...
    HKP-21802
    $72.99
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    $72.99
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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
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  • New - HKP HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B Sling Pin - HKP-21504 HK UMP, USC Sling Pin, Stock Block B
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    HK UMP, USC Sling Pin, Stock Block B

    HKP HK Parts

    $49.95
    HKP HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B Sling Pin The original thumb screw version for all stock block B's.
    HKP-21504
    $49.95
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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
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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
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  • Out Of Stock
    New - HK G36C Forearm w/ Tri Rail Set Included - HKP-00618 HK G36C Handguard w/ Tri Rail Set Included

    HK G36C Handguard w/ Tri Rail Set Included

    H&K Heckler & Koch

    $199.95
    HK G36C Tri-Rail ForearmNew HK German Factory G36C Forearm with both left & right side rails, bottom rail, and hand stop included. This new style forearm also comes with the heat shield installed. Forearm is made in Germany. HK G36C SL8 to G36...
    HKP-00618
    $199.95
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  • New - JMAC Customs BDS-37 Blast Diversion Shield - Bravo with HD 3-Lug Adapter - HKP-20521 Blast Diversion Shield - BDS-37 - Bravo with HD 3-Lug Adapter
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    Blast Diversion Shield - BDS-37 - Bravo with HD 3-Lug Adapter

    JMAC Customs

    $229.95
    JMAC Customs BDS-37 Blast Diversion Shield - Bravo with HD 3-Lug Adapter The YHM-2050 HD (heavy duty) 3-Lug Adapter is a quick-attach mounting option designed to provide added strength and longevity to your 3-Lug equipped firearm. This fully...
    HKP-20521
    $229.95
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    $229.95
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  • New - Timney Triggers HK91/G3 .308 2-Stage Trigger - Complete - HKP-20513-CP HK91, G3 2-Stage Trigger Group - Complete
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    HK91, G3 2-Stage Trigger Group - Complete

    Timney Triggers

    $478.95
    Timney Trigger for .308 - HK91 SEF Timney trigger group comes completely assembled and ready to drop in your receiver. Set up with a German ejector lever, new SEF selector lever, and a brand new factory German housing for the best trigger group available...
    HKP-20513-CP
    $478.95
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  • New - HKP 10 Round MP5 .22LR Magazine Spring - HKP-20297
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    HK MP5 Magazine Spring - .22LR - 10 Round

    HKP HK Parts

    $3.95
    HKP 10 Round MP5 .22LR Magazine Spring New fresh production mag spring for your HK MP5 .22 magazine. Please note: This spring can also be used to convert the 10 round magazine to a 10 round magazine. It has come to our attention that Walther has made...
    HKP-20297
    $3.95
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    $3.95
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  • Out Of Stock
    New - JMAC Customs SS-8 w/ 1913 Folding Mech - HKP-20146 Folding Stock - SS-8 with 1913 Folding Mech

    Folding Stock - SS-8 with 1913 Folding Mech

    JMAC Customs

    $284.99
    JMAC Customs SS-8 Folding Stock w/1913 Folding Mech Skeleton stock 8" with 1913 folding mech (not assembled) 2x integrated QD sling socket 8" length Drilled and tapped for optional cheek risers (will be available in the future) Compatible with SIG...
    HKP-20146
    $284.99
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  • Out Of Stock
    New - H&K MP5, 93/53/33, 91 (9mm, .40/10, 5.56/.223, 7.62/.308) 3 Position (0,1,3 Pictogram) Universal Housing - Clipped & Pinned - HKP-19801 HK MP5, 93/53/33, 91 (9mm, .40/10, 5.56/.223, 7.62/.308) 3 Position (0,1,3 Pictogram) Universal Housing - Clipped & Pinned

    HK MP5, 93/53/33, 91 (9mm, .40/10, 5.56/.223, 7.62/.308) 3 Position (0,1,3 Pictogram) Universal Housing - Clipped & Pinned

    H&K Heckler & Koch

    $249.95
    H&K MP5, 93/53/33, 91 (9mm, .40/10, 5.56/.223, 7.62/.308) 3 Position (0,1,3 Pictogram) Universal Housing - Clipped & Pinned Introducing the universal 3 position burst pictogram housing for HK MP5, SP5, and .40/10 firearms. This new factory...
    HKP-19801
    $249.95
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