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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  • Used - H&K 91/G3 (7.62x51/.308) Backplate & Recoil Rod Assembly Complete - HKP-16144 HK91, G3 Backplate and Recoil Rod Assembly, Complete
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    HK91, G3 Backplate and Recoil Rod Assembly, Complete

    H&K Heckler & Koch

    $24.95
    Heckler and Koch Complete Backplate and Recoil Rod Assembly for HK91 and HK G3 Used- Surplus- in good shape. Each backplate comes in the parkerized finished as issued to the German military complete and 100% serviceable. Ready to install. This is also a...
    HKP-16144
    $24.95
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    $24.95
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  • New - HKP 90 Series F1 Flat Trigger - HKP-21537 HK MP5, HK90 Series F1 Flat Trigger
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    HK MP5, HK90 Series F1 Flat Trigger

    HKP HK Parts

    $49.95
    HKP 90 Series F1 Flat Trigger  With the utmost attention to detail in the design and manufacture of the HK Parts F1 flat 90 series trigger. Each F1 flat trigger will fit all 0,1 & SEF & Navy style trigger packs. Each trigger counts as one US...
    HKP-21537
    $49.95
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  • New - H&K HK MR556/416 Extended 11" Quad Rail - Black - HKP-01960 HK416, MR556 Handguard - 11" - Extended - Quad Rail
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    HK416, MR556 Handguard - 11" - Extended - Quad Rail

    H&K Heckler & Koch

    $445.95
    HK MR556/416 Extended 11" Quad Rail  This drop-in unit offers two full inches in extra length, not the standard 9" rail that comes with the HK 416/MR556, but an extended 11" rail that allows for a longer sight radius and more rail space...
    HKP-01960
    $445.95
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  • New - HK MR556/MR762/416/HK417 Buffer Retainer Spring - HKP-20036
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    HK416, MR556, HK417, MR762 Buffer Retainer Spring

    USA

    $5.95
    HK MR556/MR762/416/HK417 Buffer Retainer Spring This item is the spring for the buffer retainer that is held in the rear of the lower receiver. Compatible With: HK MR556 HK 416 HK MR762 HK 417
    HKP-20036
    $5.95
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  • New - HKP MP5 & HK94 Steel Cocking Tube Support - HKP-18040 HK MP5, HK94 Cocking Tube Support - Steel
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    HK MP5, HK94 Cocking Tube Support - Steel

    HKP HK Parts

    $49.95
    MP5 All Steel Cocking Tube Support 9mm - USA: Made entirely from ordnance grade stainless steel from the factory HK German print & specs. An HK German quality part at the best price. Each MP5 9mm cocking tube support will include the detent and...
    HKP-18040
    $49.95
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  • HK MP5, MP5K Cocking Handle - Knurled - Extended HK MP5, MP5K Cocking Handle - Knurled - Extended
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    HK MP5, MP5K Cocking Handle - Knurled - Extended

    Leapers - UTG

    $29.97
    HK MP5, MP5K Cocking Handle Extended Extended cocking handle for the MP5 style of firearms. These cocking handles also count towards one US made component for 922r compliance.  Made by UTG to work with their monolithic M-LOK handguards...
    HKP-22421
    $29.97
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  • Used - RCM HK Style MP5K 9mm Complete Bolt Group - HKP-19846 HK MP5K Bolt Group - Complete - 9mm - SA/FA
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    HK MP5K Bolt Group - Complete - 9mm - SA/FA

    RCM

    $394.95
    Complete Bolt Group - RCM - HK Style MP5K 9mm Ideal to replace out of spec, worn or broken bolt groups or for that custom build. Each bolt group is compatible with semi and full-auto MP5K 9mm style firearms.  Each bolt group comes complete,...
    HKP-19846
    $394.95
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  • New - HK SP89, SP5K, MP5K - Forearm - HKP-17397 HK MP5, MP5K, SP89 Handguard with Handstop
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    HK MP5, MP5K, SP89 Handguard with Handstop

    HKP HK Parts

    $29.95
    HK SP89, SP5K, MP5K - Forearm Compatible With: HK MP5K HK SP89 HK SP5K MP5 Reverse Stretch Style Builds Custom MP5K/ SP89 builds Specifications: Made in the USA 922r Compliant Brand: HK Parts *Can be modified to install on MP5K-N builds with 3...
    HKP-17397
    $29.95
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  • New - H&K HK USP/45/45C Ambidextrous Control Lever Set Roll Pin - HKP-02394
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    HK45, HK45C, USP Roll Pin - Ambi Control Lever

    H&K Heckler & Koch

    $2.95
    HK USP, 45 & 45C Ambidextrous Control Lever Set Roll Pin This item is to hold the right side lever onto the left side axle lever. These can easily be lost or damaged. A great spare part to have on hand. Compatible With: HK USP Full...
    HKP-02394
    $2.95
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    $2.95
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  • New - H&K German 5.56/.223 & 7.62x51/.308 Hammer Spring - HKP-00194
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    HK Universal Hammer Spring

    H&K Heckler & Koch

    $9.95
    New HK German Rifle Hammer Spring For All.308/.223 Semi & Full Auto Trigger Packs The 308/556 hammer spring is a popular upgrade to replace the hammer spring in 9mm and clones that have light primer hits. This is the factory-correct 25 lb. weight for...
    HKP-00194
    $9.95
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  • Used - H&K MP5K 9mm SEF Trigger Group Navy Style- Full Auto - Push Pin - Used - HKP-18095-PP HK MP5K 9mm SEF Trigger Group Navy Style- Full Auto - Push Pin - Used
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    HK MP5K 9mm SEF Trigger Group Navy Style- Full Auto - Push Pin - Used

    H&K Heckler & Koch

    $499.95
    HK German MP5K SEF Navy Style F/A Trigger Group Complete - Used ON SALE FOR A SPECIAL PROMOTION WHILE SUPPLIES LAST!!! Each trigger group is comprised of genuine Heckler & Koch products Includes: German Full Auto trigger pack with all F/A...
    HKP-18095-PP
    $499.95
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  • On Sale
    New - PTR PDW (7.62x39) & (7.62x51/.308) Backplate With Recoil Rod - HKP-02665 HK51, PTR PDW Backplate With Recoil Rod
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    HK51, PTR PDW Backplate With Recoil Rod

    PTR

    Now: $109.95
    Was: $149.95
    HK51, PTR PDW Backplate With Recoil Rod Each unit has been built with new HK parts and painted HK black, ready for use. The PTR PDW is the collapsible recoil-style assembly designed for use on HK51-style builds. This backplate will work on any fixed...
    HKP-02665
    Now: $109.95
    Was: $149.95
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    Now: $109.95
    Was: $149.95
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