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) Fixed Stock - Jungle Green - Surplus - HKP-16270 HK91, G3 Fixed Stock - Jungle Green - Surplus
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    HK91, G3 Fixed Stock - Jungle Green - Surplus

    H&K Heckler & Koch

    $25.95
    H&K 91/G3 (7.62x51/.308) Fixed Stock - Jungle Green - Surplus Used jungle green German surplus stock complete. Ready to install on your HK or clone rifle. Used in perfect working condition. Each stock includes all parts to be a complete stock ready...
    HKP-16270
    $25.95
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  • New - H&K (5.56/.223) & (7.62x51/.308) Birdcage Flash Hider - Threaded 15x1 RH - HKP-00359 HK91, G3, HK93, HK417 Flash Hider - Birdcage - Threaded 15x1 RH
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    HK91, G3, HK93, HK417 Flash Hider - Birdcage - Threaded 15x1 RH

    H&K Heckler & Koch

    $34.95
    HK Heckler and Koch's Birdcage Flash Hider   Threads onto 15x1 RH twist barrels. This factory German flash hider attaches to any factory HK barrel. No tools required for installation.   Specifications: Made In Germany Threaded 15x1...
    HKP-00359
    $34.95
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    $34.95
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  • New - HK SP5K 9mm - SEF, Navy Style - Clipped & Pinned - HKP-17945 HK SP5K 9mm Housing - SEF, Navy Style - Clipped & Pinned
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    HK SP5K 9mm Housing - SEF, Navy Style - Clipped & Pinned

    H&K Heckler & Koch

    $199.95
    HK German SP5K Spec - Navy Style - SEF C/P Housing HK SP5K Spec ONLY for the newly released HK SP5K spec. Made is Germany and machined to fit the HK SP5K spec only. Compatible With: HK SP5K 9mm Spec For use with an SEF style trigger pack not the...
    HKP-17945
    $199.95
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    $199.95
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  • Out Of Stock
    New - HKP HK MP5/MP5K Extractor - Enhanced Coated Polish - HKP-22181-M HK MP5, MP5K Extractor - Enhanced Coated Polish

    HK MP5, MP5K Extractor - Enhanced Coated Polish

    HKP HK Parts

    $44.95
    HKP HK MP5/MP5K Extractor - Enhanced Coated Polish  Built for dependable performance, this polished and coated extractor delivers smooth cycling and consistent extraction. A great choice for both upgrades and routine replacements. Compatible...
    HKP-22181-M
    $44.95
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  • New - Timney HK MP5K 9mm 2-Stage Trigger Complete - HKP-20515-M HK MP5K 2-Stage Trigger Group - 9mm - Complete
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    HK MP5K 2-Stage Trigger Group - 9mm - Complete

    Timney Triggers

    $498.95
    Timney Trigger for MP5K, SP5K The SEF Timney trigger group comes completely assembled, ready to drop into your receiver. Features a 3rd generation German ejector lever, new SEF selector lever, and a brand new factory German housing. Available exclusively...
    HKP-20515-M
    $498.95
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    $498.95
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  • New - H&K HK UMP & HK USC Extended Top Rail For Optics with Screws - HKP-20502 HK UMP, USC Top Rail for Optics with Screws - Extended
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    HK UMP, USC Top Rail for Optics with Screws - Extended

    H&K Heckler & Koch

    $79.95
    H&K HK UMP & HK USC Extended Top Rail For Optics with Screws This rail is nearly an 1" longer than the standard length top rail. This Picatinny top rail allows the user to add an Eotech, Aimpoint, Acog, etc. This unit is the best quality &...
    HKP-20502
    $79.95
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    $79.95
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  • New - Universal SP5/MP5 Clipping & Pinning Service - HKP-20472 Universal SP5/MP5 Clipping & Pinning Service
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    Universal SP5/MP5 Clipping & Pinning Service

    USA

    $149.95
    HK Clipped & Pinned Service - Universal SP5/MP5 At HK Parts we offer our own HK trigger housing clip & pin services. No one does a better job with quicker turn around then we do. We will clip and pin any "push pin" plastic housing to the SP5 Spec...
    HKP-20472
    $149.95
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    $149.95
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  • New - H&K UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Ambidextrous Sling Loop - HKP-00611 HK G36, SL8, UMP, USC Sling Loop - Ambidextrous
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    HK G36, SL8, UMP, USC Sling Loop - Ambidextrous

    H&K Heckler & Koch

    $40.95
    UMP, USC, SL8, & G36 Ambidextrous Sling Loop Or Eyebolt For Sling - German HK The addition of the HK eyelet creates a sling attachment point that will enable you to mount a sling using any of the hard mounting points located on the forearm of the...
    HKP-00611
    $40.95
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  • Out Of Stock
    New - H&K HK53/HK51 Handguard - Full Length - HKP-00468 HK53, HK51 Handguard - Full Length

    HK53, HK51 Handguard - Full Length

    H&K Heckler & Koch

    $59.95
    H&K HK53/HK51 Handguard - Full Length H&K German manufactured HK51 and HK53 polymer handguard. This handguard is the proper length to cover the extended portion of the trunnion found on the HK53 and HK51 style of firearms. Compatible...
    HKP-00468
    $59.95
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  • New - H&K MP5 40/10 30 Round Magazine Spring - HKP-01056
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    HK MP5 Magazine Spring - 10mm and .40 S&W - 30 Round

    H&K Heckler & Koch

    $9.95
    H&K MP5 40/10 30 Round Magazine Spring New HK German MP5 40/10 magazine spring for the 30 round magazine. Hard to find and a must have repair and replacement item.
    HKP-01056
    $9.95
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    $9.95
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  • New - MP5, MP5K 9mm Contact Piece For Paddle Mag Release - German - HKP-00118 HK MP5, MP5K Contact Piece for Paddle Mag Release  - 9mm
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    HK MP5, MP5K Contact Piece for Paddle Mag Release - 9mm

    H&K Heckler & Koch

    $59.95
    MP5, MP5K 9mm Contact Piece For Paddle Mag Release - German This is the real deal NOT the .308 or .223 contact piece. Hard to find factory-correct, brand-new, latest production German HK 9mm contact piece. Compatible With: MP5, SP5, 94, SP5 MP5K, SP5K,...
    HKP-00118
    $59.95
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    $59.95
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  • New - HKP HK MP5 Enhanced Recoil Spring - HKP-22209
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    HK MP5 Recoil Spring - Enhanced

    HKP HK Parts

    $16.95
    HKP HK MP5 Enhanced Recoil Spring The HK Parts enhanced recoil spring offers a 5% increase in strength over the factory MP5 spring. Ideal for high round count firearms, suppressed setups, or simply to improve longevity. Won't fit F style recoil rods or...
    HKP-22209
    $16.95
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    $16.95
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