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 SL8/G36 Front Sight - Black - HKP-00638 HK SL8, G36 Front Sight
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    HK SL8, G36 Front Sight

    H&K Heckler & Koch

    $19.95
    HK German SL8/G36 (G36,G36K,G36C & SL8) Front Sight Post - New This item is the replacement polymer front sight post for the HK sight rails.
    HKP-00638
    $19.95
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  • New - H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Safety Selector Lever (0,1,F) - HKP-01889
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    HK UMP, G36 Safety Selector Lever 0,1,F - 9mm, .40 S&W, .45 ACP, 5.56 / .223

    H&K Heckler & Koch

    $19.95
    HK UMP & G36 Left Side Safety Selector Lever With Axle - 3 Position Navy Compatible With All Navy 3 Position Lowers (0,1,F): HK UMP HK G36
    HKP-01889
    $19.95
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  • HK UMP Magazine Release - Enhanced - Billeted HK UMP Magazine Release - Enhanced - Billeted
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    HK UMP Magazine Release - Enhanced - Billeted

    HKP HK Parts

    $34.95
    HKP HK Parts Enhanced Paddle Magazine Release for HK UMP 9mm, .40 S&W, .45 ACP This is a very common replacement part as they are fairly easy to break on the UMP lower. With this new mag release, you'll get a wider release as well as a much more...
    HKP-18758
    $34.95
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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 - MM HK93/33/53 Club Foot Stock - HKP-01455 HK33, HK53, HK93 Clubfoot Stock
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    HK33, HK53, HK93 Clubfoot Stock

    Michaels Machines

    $315.95
    MM Club Foot Stock for HK33, HK53, and HK93 This clubfoot ships assembled with a mix of German and US-made parts. Includes: MM 21E Clubfoot Central Stock Section - US Made US Heavy Rubber Buttpad - US Made HK G3 to HK33, HK93 Back Plate - German HK...
    HKP-01455
    $315.95
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    $315.95
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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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  • HK MP5K Apparel and Patch Collection - K Series Hats, Patches, and Shirts - V1 HK MP5K Apparel and Patch Collection - K Series Hats, Patches, and Shirts - V1
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    HK MP5K Apparel and Patch Collection - K Series Hats, Patches, and Shirts - V1

    HKP HK Parts

    $0.00
    HKP HK MP5K Apparel and Patch Collection - Version 1 Represent your platform with the HK Parts K Series apparel and accessories lineup. Built for enthusiasts who appreciate iconic firearms and clean, understated design, this collection delivers premium...
    HKP-22454-M
    $0.00
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  • HK416, MR556 Magazine Catch - Ambi HK416, MR556 Magazine Catch - Ambi
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    HK416, MR556 Magazine Catch - Ambi

    H&K Heckler & Koch

    $104.95
    Heckler and Koch Ambidextrous Magazine Catch for HK416 and HK MR556  Factory HK ambi magazine catch, release. Compatible With: HK416A5, MR556 A4 NOT compatible with earlier variants with single-side controls
    HKP-22289
    $104.95
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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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  • New - H&K 417/MR762 A4 Bolt Catch/Release - Ambi - HKP-21960 HK417, MR762A4 Bolt Catch, Release - Ambi
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    HK417, MR762A4 Bolt Catch, Release - Ambi

    H&K Heckler & Koch

    $53.95
    Heckler and Koch MR762 A4 Bolt Catch/Release - Ambi Factory ambidextrous bolt catch lever for the MR762 A4.  The A4 variant of the MR762 introduced ambi controls for the bolt catch/release not previously available on the A1 variant...
    HKP-21960
    $53.95
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  • New - RCM HK G3/91 Threaded Barrel - 5/8x24 - CHF - HKP-21838 HK91, G3 Barrel - 7.62x51 - 17.7" - Threaded 5/8x24
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    HK91, G3 Barrel - 7.62x51 - 17.7" - Threaded 5/8x24

    RCM

    $264.99
    RCM HK G3/91 Threaded Barrel - 5/8x24-CHE Machined by RCM from a Mil-Spec 41V50 Hammer Forged Blank. These blanks are considered to be one of the finest made. 1:10 twist, Nitride finish. Perfect for that HK build or to replace that shot out barrel. Each...
    HKP-21838
    $264.99
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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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