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 MR556 Incomplete Upper Receiver - HKP-02615 HK MR556 Incomplete Upper Receiver
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    HK MR556 Incomplete Upper Receiver

    H&K Heckler & Koch

    $449.95
    HK German Stripped HK MR556 Upper Receiver New factory German incomplete and unmarked MR556 upper receiver. Compatible With: HK MR556 HK MR223 HK 416 Do you need a matching lower for your build?  STS416 A5 LOWER - Specialized Tactical...
    HKP-02615
    $449.95
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    $449.95
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  • New - H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Sear Spring - HKP-01866
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    HK G36, UMP Sear Spring

    H&K Heckler & Koch

    $8.95
    HK UMP, USC, G36, & SL8 Sear Spring This part is used in conjunction with the sear in the trigger body of the lower.  
    HKP-01866
    $8.95
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    $8.95
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  • New - H&K Universal Cleaning Kit - HKP-19031 HK91, G3, MSG90 Cleaning Kit - .308 to .351 Calibers
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    HK91, G3, MSG90 Cleaning Kit - .308 to .351 Calibers

    H&K Heckler & Koch

    $64.95
    New - Original HK German MSG90/HK91/G3 Cleaning Kit - Old Stock Each cleaning kit kit comes complete with brass brush, oil brush, oil tube, hand cleaning brush, and pull chain. Originally built for the G3,91 & MG3 but will work on all .308 - .351 ...
    HKP-19031
    $64.95
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  • New - UTG Quick Detach Low Profile Folding Grip - HKP-15029 Folding Grip - Quick Detach - Low Profile
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    Folding Grip - Quick Detach - Low Profile

    UTG

    $49.95
    UTG Quick Detach Low Profile Folding Grip Features: Unique knurled surface for the most solid grip Smart Posi-Lock cross bolt and spring tensioned locking plate with steel insert for the most secure installation Fully adjustable quick detachable...
    HKP-15029
    $49.95
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  • New - HKP HK MP5F Flat - Alternate Holes - HKP-21551 HK MP5F Receiver Flat - Alternate Holes
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    HK MP5F Receiver Flat - Alternate Holes

    HKP HK Parts

    $125.95
    HKP HK MP5F 9mm Flat - Alternate Holes MP5 receiver flat crafted by the original German tool and die maker of the LSC receiver flat using factory original German prints and specifications. This receiver features alternate holes for the correct MP5F or...
    HKP-21551
    $125.95
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  • New - HKP HK MP5 .22LR - Universal Optic Mount - HKP-20968-M HK MP5 Optic Mount - .22LR
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    HK MP5 Optic Mount - .22LR

    HKP HK Parts

    $119.95
    HKP HK MP5 .22LR - Universal Optic Mount  The HKP universal optic mount incorporates the VP9 optic footprint, allowing the user to install any VP9 compatible optic on their MP5 .22LR with a German or HKP VP9 optic plate. Swap optics like Trijicon,...
    HKP-20968-M
    $119.95
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  • On Sale
    New - AC-Unity HK MP5 Cocking Handle - HKP-20158 HK MP5 Cocking Handle
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    HK MP5 Cocking Handle

    AC-Unity

    Now: $19.95
    Was: $24.95
    AC-Unity HK MP5 Cocking Handle Compatible With: MP5, 94, MP5SD MP5K, SP89, SP5K Zenith 9mm firearms, POF Other MP5 clones or custom HK 9mm builds
    HKP-20158
    Now: $19.95
    Was: $24.95
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  • New - HKP HK 416 Ejection Port Axle - HKP-20039
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    HK416 Ejection Port Axle

    H&K Heckler & Koch

    $4.95
    Ejection Port Axle - Steel- HK 416 New HK USA manufacture for the HK 416 family of firearms. This is the axle that holds the ejection port cover in place on the upper receiver. 
    HKP-20039
    $4.95
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  • New - H&K HK MR556/MR762/416 Forward Assist Assembly - HKP-16528 HK416, MR556, MR762 Forward Assist Assembly, Complete
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    HK416, MR556, MR762 Forward Assist Assembly, Complete

    H&K Heckler & Koch

    $74.95
    H&K Heckler and Koch Forward Assist Assembly for HK416, HK MR556, and HK MR762  H&K Germany factory HK MR556 and HK416 forward assist assembly complete. Compatible With: HK 416, MR556 HK MR762
    HKP-16528
    $74.95
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  • New - H&K HK G36C/G36K Gas Piston - HKP-00352
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    HK G36C, G36K Gas Piston

    H&K Heckler & Koch

    $99.95
    HK German G36C & G36K Gas Piston - Complete New HK German factory G36C and G36K gas piston complete with sealing rings installed. A great spare or replacement part. This is also a popular part for those upgrading to an SL8 to G36K or C barrel length...
    HKP-00352
    $99.95
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  • Out Of Stock
    New - H&K Burst Eccentric Bushing - HKP-02647 HK Burst Eccentric Bushing

    HK Burst Eccentric Bushing

    H&K Heckler & Koch

    $59.95
    HK Burst Eccentric Bushing HK German factory part is found in all HK burst trigger packs. This part is in between the hammer shank hole and the inside of the trigger box hammer axle spacer. This part is one of the most common wear...
    HKP-02647
    $59.95
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    $59.95
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  • Out Of Stock
    New - Zenith 30 Round HK MP5 Monkey Subsonic Labeled Magazine - HKP-20916 HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Subsonic - Speak No Evil Monkey

    HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Subsonic - Speak No Evil Monkey

    Zenith

    $43.95
    Zenith 30 Round HK MP5 Monkey Subsonic Labeled Magazine Easily identify a magazine loaded with supersonic rounds versus a magazine loaded with subsonic rounds. Features: Durable electro-plated black finish for exceptional corrosion resistance All steel...
    HKP-20916
    $43.95
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    $43.95
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