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 HK 416 A5 & 417 Universal Tool - HKP-21621 HK416A5, HK417 Universal Tool

    HK416A5, HK417 Universal Tool

    H&K Heckler & Koch

    $144.95
    Heckler and Koch Universal Tool for HK416A5, HK417 Genuine HK multi-tool designed for the HK416A5 and HK417. Suitable for both bench and field use, this factory tool provides the essential functions...
    HKP-21621
    $144.95
    Qty in Cart: 0
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    $144.95
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  • B&T 1/2x28 Direct Thread to Hub Adapter B&T 1/2x28 Direct Thread to Hub Adapter

    B&T 1/2x28 Direct Thread to Hub Adapter

    B&T Brugger & Thomet

    $89.95
    B&T Direct Thread 1/2x28 Hub Adapter Convert any 1/2x28 RH threaded barrel to accept Hub devices with this direct fit adapter. Compatible With: HK MP5, MP5K, SP5, SP5K
    HKP-21506
    $89.95
    Qty in Cart: 0
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    $89.95
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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

    HK UMP, USC Sling Pin, Stock Block B

    HKP HK Parts

    $49.95
    HKP Stock Block B Sling Pin for HK UMP, and HK USC .40 S&W / .45 ACP / 9mm   The original thumb screw version for all stock block B's. Compatible with:
    HKP-21504
    $49.95
    Qty in Cart: 0
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  • On Sale
    New - HKP (5.56/.223) A5 Flash Hider - Threaded 1/2x28 - HKP-21342 HK416, MR556, G36 A5 Flash Hider - Threaded 1/2x28

    HK416, MR556, G36 A5 Flash Hider - Threaded 1/2x28

    HKP HK Parts

    Now: $38.22
    Was: $59.95
    HKP (5.56/.223) HK 416C A5 Flash Hider - Threaded 1/2x28 Made from ordnance grade steel, heat treated, and melonited (nitride process) for maximum longevity. Machined correctly to reduce tuning fork...
    HKP-21342
    Now: $38.22
    Was: $59.95
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    Now: $38.22
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  • Out Of Stock
    New - DTAC HK MP5SD Front End Kit - HKP-21318 HK MP5 to MP5SD Front End Conversion Kit

    HK MP5 to MP5SD Front End Conversion Kit

    DTAC Dakota Tactical

    $1,299.95
    Dakota Tactical HK MP5SD Front End Kit If you have wanted to convert that MP5 or SP5 to an SD but didn't know where to start, look no further.  Our kit provides all necessary components (aside from...
    HKP-21318
    $1,299.95
    Qty in Cart: 0
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  • New - Omega HK UMP Rear Sight Complete - HKP-21266

    Gideon Shadow UMP Rear Sight, Complete

    OMEGA

    $39.95
    Omega Rear Sight Complete for HK UMP All the parts needed for the rear sight on a Gideon Shadow UMP style build. New USA made parts for your build.   Will only work with Gideon Shadow. Locking screw...
    HKP-21266
    $39.95
    Qty in Cart: 0
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  • Used - G3 Incomplete Backplate - Threaded - HKP-20860 HK91, G3 Backplate, Incomplete

    HK91, G3 Backplate, Incomplete

    H&K Heckler & Koch

    $29.95
    G3 Incomplete Backplate Each backplate is refinished and parkerized as issued to the German military. This refinished backplate comes with a threaded end to accept a threaded recoil rod stop screw...
    HKP-20860
    $29.95
    Qty in Cart: 0
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  • New - HK45 .45 ACP Thread Protector - Threaded .578x28 RH - HKP-19891 HK45 Thread Protector - Threaded .578x28 RH

    HK45 Thread Protector - Threaded .578x28 RH

    USA

    $24.95
    HK45 .45 ACP Thread Protector - Threaded .578x28 RH Made in the USA, HK45 .45 ACP thread protector, for full size & compact barrels with a 578x28 RH. Made from stainless steel with a nitride finished...
    HKP-19891
    $24.95
    Qty in Cart: 0
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  • On Sale
    Used - OEM Fero Z51 Night Vision Manual - HKP-19604 OEM Fero Z51 Night Vision Manual

    OEM Fero Z51 Night Vision Manual

    Now: $7.46
    Was: $24.95
    OEM Fero Z51 Night Vision Manual This is the manual for the recently imported German night vision scope for the MG3 Machinegun, G3 Rifle and Pazerbusche 84. The condition of these booklets will vary...
    HKP-19604
    Now: $7.46
    Was: $24.95
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    Now: $7.46
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  • New - Ergo M-LOK QD Sling Mount - HKP-17875

    M-LOK QD Sling Mount

    Ergo

    $24.95
    Ergo M-LOK QD Sling Mount   Compatible with any firearm featuring M-LOK attachment points.
    HKP-17875
    $24.95
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  • New - H&K G36/SL8 (5.56/.223) Extractor Axle - HKP-01895

    HK G36, SL8 Extractor Axle

    H&K Heckler & Koch

    $9.95
    HK G36 & SL8 Extractor Axle This part can become heavily worn and is prone to breakage. Compatible With: HK G36 models
    HKP-01895
    $9.95
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    $9.95
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  • New - H&K G36/SL8 (5.56/.223) Cocking Handle Spring - HKP-01862

    HK G36, SL8 Cocking Handle Spring

    H&K Heckler & Koch

    $10.95
    HK German G36 Cocking Handle Spring - All Variants Compatible With: G36 - all variants SL8 - all variants
    HKP-01862
    $10.95
    Qty in Cart: 0
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    $10.95
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