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 - HKP .45 ACP 5 Prong Flash Suppressor - Threaded 16x1 LH - HKP-02637 HK USP, HK45, UMP Flash Hider - .45 ACP - 5 Prong - Threaded 16x1 LH
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    HK USP, HK45, UMP Flash Hider - .45 ACP - 5 Prong - Threaded 16x1 LH

    HKP HK Parts

    $99.95
    HK USP, UMP, HK45 Flash Hider - .45 ACP - 5 Prong - Threaded 16x1 LH 5 prong flash hider for .45 ACP firearms featuring a 16x1 LH threaded barrel.  No timing/shims necessary. Compatible With the Following Firearms Threaded 16x1 LH: HK UMP/USC HK45...
    HKP-02637
    $99.95
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  • New - H&K HK 93/53/33 (5.56/.223) Cleaning Kit - HKP-01550 HK33, HK53, HK93 Cleaning Kit - 5.56 / .223
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    HK33, HK53, HK93 Cleaning Kit - 5.56 / .223

    HKP HK Parts / Heckler & Koch

    $89.95
    H&K HK 93/53/33 (5.56/.223) Cleaning Kit New Factory HK German 93, 33, 53, or other HK .223/5.56's cleaning kit for all HK's or clones. This is the factory HK cleaning kit issued by HK as an OEM product. Includes: Cleaning rod for short and long...
    HKP-01550
    $89.95
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  • New - MP5SD 9mm Cocking Tube End Cap Weldment - HKP-15702 HK MP5SD Cocking Tube End Cap Weldment - 9mm
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    HK MP5SD Cocking Tube End Cap Weldment - 9mm

    USA

    $34.95
    MP5SD Cocking Tube End Cap Weldment For MP5 Front Sight Towers Milled from solid billet. US made MP5SD cocking tube end cap weldment for use with all MP5 front sight towers. Available exclusively at HK Parts.
    HKP-15702
    $34.95
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  • HKP Cleaning Brush for HK91 and HK G3 Barrel Flutes 7.62x51 / .308 HK91, G3 Barrel Flute Cleaning Brush - 7.62x51 / .308
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    HK91, G3 Barrel Flute Cleaning Brush - 7.62x51 / .308

    HKP HK Parts

    $19.95
    HKP Cleaning Brush for HK91 and HK G3 Barrel Flutes 7.62x51 / .308 This brush is a must-have for cleaning the chamber flutes on a HK G3 or HK91-style firearm. If the flutes become clogged or dirty, the firearm will cease to extract properly and render...
    HKP-22317
    $19.95
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  • HK MP5, AP5 Firing Pin HK MP5, AP5 Firing Pin
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    HK MP5, AP5 Firing Pin

    MKE

    $14.95
    MKE HK MP5/AP5 Firing Pin - 9mm MKE firing pin for HK MP5 platforms. Compatible With: HK MP5/SP5 Century Arms AP5/AP5P Zenith ZF-5/ZF-5K PTR 9CT/9KT
    HKP-22243
    $14.95
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  • Out Of Stock
    New - H&K MR556 A4/416 Rear Takedown Pin - HKP-22029 HK416, MR556, HK417, MR762 Takedown Pin - Rear - A4 Style

    HK416, MR556, HK417, MR762 Takedown Pin - Rear - A4 Style

    H&K Heckler & Koch

    $43.95
    H&K MR556, HK416, HK417, MR762 Rear Takedown Pin Factory A4 rear takedown pin.  Will work for A1 and A4 applications.   Compatible With: HK MR556 A1 and A4 HK416 HK MR762 A1 and A4 HK417 AR-14, M4, M16    
    HKP-22029
    $43.95
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  • Refurbished - HKP SEF Short Axle Selector Lever for Metal Trigger Housings - Refinished - HKP-21921 HK SEF Short Axle Selector Lever for Metal Trigger Housings - Refinished
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    HK SEF Short Axle Selector Lever for Metal Trigger Housings - Refinished

    HKP HK Parts

    $34.95
    HKP SEF Short Axle Selector Lever for Metal Trigger Housings - Refinished HK steel SEF short axle selector lever. Fits all metal HK grip frames. Please note that the polymer (plastic) style SEF housing uses the long axle SEF selector lever and not this...
    HKP-21921
    $34.95
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  • New - HKP HK 416 .22 LR Flash Hider - HKP-21576 HK416 Flash Hider - .22 LR
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    HK416 Flash Hider - .22 LR

    HKP HK Parts

    $39.95
    HKP HK 416 .22 LR Flash Hider  Enhance your 416.22 pistol with a direct-mount flash hider boasting an elegant Birdcage style for an unmistakable custom appearance. Included O-ring ensures a securely locked flash hider, guaranteeing durability and...
    HKP-21576
    $39.95
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  • New - HKP HK SP5 ACR Adapter - HKP-21519 HK SP5 ACR Stock or Brace Adapter
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    HK SP5 ACR Stock or Brace Adapter

    HKP HK Parts

    $139.95
    HKP HK SP5 ACR Stock or Brace Adapter This adapter allows the ACR stock to be fully compatible with the SP5 and in-spec MP5 platforms. It’s built from aircraft-grade aluminum with a pre-installed buffer for a straightforward, drop-in conversion...
    HKP-21519
    $139.95
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  • Out Of Stock
    New - Lancer 30 Round AR-15 Magazine - HKP-21188 HK416, MR556, AR-15 Magazine - 30 Round - Smoke

    HK416, MR556, AR-15 Magazine - 30 Round - Smoke

    Lancer

    $29.95
    Lancer 30 Round AR-15 Magazine - Smoke Lancer set out to design a better 5.56 magazine, one with the reliability of steel and the durability and weight of the polymer. The L5AWM’s exclusive hybrid design includes a hardened steel feed lip...
    HKP-21188
    $29.95
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  • New - Michaels Machines USC to UMP Stock Block B w/Thumbscrew - HKP-20722 HK USC to UMP Stock Block B with Thumb Screw
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    HK USC to UMP Stock Block B with Thumb Screw

    Michaels Machines

    $249.95
    Michaels Machines USC to UMP Stock Block B w/Thumbscrew For use with all HK UMP factory or US made folding stocks. Each unit comes with a thumbscrew on one end and a slotted section on the other end. This is a required part for the HK USC-UMP style...
    HKP-20722
    $249.95
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  • New - H&K HK MR762/417 Castle Receiver Extension Nut For Buffer Tube - Black - HKP-16768 HK417, MR762 Buffer Tube Castle Nut
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    HK417, MR762 Buffer Tube Castle Nut

    H&K Heckler & Koch

    $44.95
    Heckler and Koch Castle Nut for Receiver Extension for Buffer Tube for HK417 and MR762 New HK German manufacture and the factory correct offering with the proper installation screws and staking guides. Compatible With: HK417, MR762
    HKP-16768
    $44.95
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