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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  • HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Coated HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Coated
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    HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Coated

    MKE

    $64.95
    HK MP5 30 Round Magazine - MKE - AP5  These MKE 30 round magazines are the perfect addition or replacement for your AP5 or MP5 pistol. The MKE magazine features the original MP5 design. Constructed of heat-treated steel for lasting strength and...
    HKP-21341-M
    $64.95
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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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  • 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

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

    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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  • New - Franklin Armory HK MP5-AR Binary Trigger Group - HKP-20642 HK MP5, HK94, SP5 Binary Trigger Group - Ambi - BFSIII -  9mm
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    HK MP5, HK94, SP5 Binary Trigger Group - Ambi - BFSIII - 9mm

    FA Franklin Armory

    $849.95
    Franklin Armory BFSIII HK-C1 - Trigger Group For  MP5, SP5 Our new and improved HK-AR Navy ambidextrous lower housing is now paired with Franklin Armory binary trigger pack and a Magpul MOE grip to make this complete MP5-AR style binary trigger...
    HKP-20642
    $849.95
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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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  • Out Of Stock
    New - Geissele HK MR556 Trigger - HKP-16464 HK416, MR556 2-Stage Trigger

    HK416, MR556 2-Stage Trigger

    Geissele

    $489.95
    Geissele Automatic's two stage trigger for the HK MR 556 rifle. The HK MR556 trigger is similar to Geissele's SSA with a 4.5 total pull weight. It can be used in both the HK 556 and semi-auto HK 416's. Each Trigger comes with full installation...
    HKP-16464
    $489.95
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  • New - H&K HK MR556/762/416/417 Bolt Catch Spring - HKP-16661
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    HK416, HK417, MR556, MR762 Bolt Catch Spring

    H&K Heckler & Koch

    $6.95
    H&K HK MR556/762/416/417 Bolt Catch Spring Compatible With: HK MR556 HK 416 HK MR762 HK 417
    HKP-16661
    $6.95
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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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  • New - HKP Tactical Rail - 6 Inch - HK91/93 - HKP-00831 HK91, G3 Tactical Rail - 6 Inch
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    HK91, G3 Tactical Rail - 6 Inch

    HKP HK Parts

    $24.95
    HKP Tactical Rail - 6 Inch The six mounting screws are also included with each rail. This rail will fit on either the left or right side or the bottom of the PTR and HK91/93 tactical handguards. Up to three rails can be used on each forearm. Compatible...
    HKP-00831
    $24.95
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  • Out Of Stock
    Used - H&K MP5, 93/53, G3 (9mm, 5.56/.223, 7.62/.308) 3 Position (S,U,O Pictogram) Contract Housing - Clipped & Pinned - USED - HKP-20031 HK MP5, HK53, HK53, G3 (9mm, 5.56/.223, 7.62/.308) 3 Position (S,U,O Pictogram) Contract Housing - Clipped and Pinned - USED

    HK MP5, HK53, HK53, G3 (9mm, 5.56/.223, 7.62/.308) 3 Position (S,U,O Pictogram) Contract Housing - Clipped and Pinned - USED

    USA

    $119.95
    H&K MP5, 93/53, G3 (9mm, 5.56/.223, 7.62/.308) 3 Position (S,U,O Pictogram) Contract Housing - Clipped & Pinned - USED Upgrade your HK93 or HK53 with this S,U,O polymer lower housing, a Malaysian contract housing designed for SEF type trigger...
    HKP-20031
    $119.95
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  • On Sale
    New - PTR HK G3/91 Tapered Barrel - Threaded 5/8x24 - HKP-19472 HK91, G3 Tapered Barrel - 16" - Threaded 5/8x24 RH
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    HK91, G3 Tapered Barrel - 16" - Threaded 5/8x24 RH

    PTR

    Now: $188.95
    Was: $229.95
    PTR HK G3/91 Tapered Barrel - Threaded 5/8x24 PTR manufactured US made barrel for the HK91, G3 & PTR style of firearms. This 16" barrel will allow you to add a threaded flash hider that is threaded 5/8x24 US threads. Specifications: Overall Length...
    HKP-19472
    Now: $188.95
    Was: $229.95
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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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