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 - MKE HK MP5/AP5 4 Position Pictogram (0,1,3,F) Semi-Auto Trigger Group - HKP-21817 HK MP5, AP5 Trigger Group - Semi Auto - 4 Position Pictogram 013F
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    HK MP5, AP5 Trigger Group - Semi Auto - 4 Position Pictogram 013F

    MKE

    $439.95
    MKE HK MP5/AP5 4 Position Pictogram (0,1,3,F) Semi-Auto Trigger Group This 0,1 semi-auto trigger group features the 4 position pictogram 0,1,3,F. Designed with a push pin set up, it serves as a perfect upgrade for the HK MP5 or the Century Arms AP5...
    HKP-21817
    $439.95
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  • New - HKP HK21 Drum Hanger - HKP-21453 HK21 Drum Hanger
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    HK21 Drum Hanger

    HKP HK Parts

    $279.95
    HKP HK21 Drum Hanger Our HK21 drum hanger is precisley machined from 4140 billet steel, heat-treated to 50 Rockwell, and parkerized for a durable finish. A lower cost alternative to the discontinued factory hanger, the HK Parts drum hanger is built for...
    HKP-21453
    $279.95
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  • New - Nefarious Arms HK 416/MR556 10.4" A3 Barrel - HKP-21335 HK416, MR556 Barrel - 5.56 - 10.4" - Threaded 1/2"x28 - A3
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    HK416, MR556 Barrel - 5.56 - 10.4" - Threaded 1/2"x28 - A3

    Nefarious Arms

    $594.95
    Nefarious Arms HK 416/MR556 10.4" A3 Barrel ***THE BARREL EXTENSION RIM IS MARKED "HAUS" DUE TO AN ERROR BY THE BARREL EXTENSION SUPPLIER.  THE MARKING IS NOT VISIBLE ONCE INSTALLED.  THESE BARRELS ARE GENUINE NEFARIOUS BARRELS AS NEFARIOUS...
    HKP-21335
    $594.95
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    $594.95
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  • New - HKP HK MP5 .22 LR Aimpoint ACRO Sight Mount - HKP-21236 HK MP5 Optic Mount, Aimpoint ACRO - .22 LR
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    HK MP5 Optic Mount, Aimpoint ACRO - .22 LR

    HKP HK Parts

    $98.95
    HKP - HK MP5 .22LR Optic Mount - ACRO HK Parts now brings you one of the most requested optic mount for the MP5/MP5K platform. Low-profile mount with a direct Aimpoint ACRO mounting interface. The smallest mount in the market with a sleek and clean...
    HKP-21236
    $98.95
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  • New - HKP Single Point Leather Sling - Black - HKP-20151 HK Single Point Leather Sling - Black
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    HK Single Point Leather Sling - Black

    HKP HK Parts

    $49.95
    Single Point Leather Sling - Black Our leather sling utilizes two HK style sling hooks to attach to a single mounting point. Designed to replicate the original, out of production, German HK offering. Each sling is handcrafted in the US by a German...
    HKP-20151
    $49.95
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  • New - B&T HK G36/SL8 Quad Rail Handguard - Black - HKP-16897 HK G36/SL8 Quad Rail Handguard
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    HK G36/SL8 Quad Rail Handguard

    B&T Brugger & Thomet

    $379.95
    B&T Handguard Quad Rail For HK G36 and SL8 New B&T Swiss manufactured G36 and SL8 quad rail system. Each unit comes with the complete quad rail as well as the rail covers and sling swivel for a sling.  Compatible With: HK G36 (Not...
    HKP-16897
    $379.95
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  • Out Of Stock
    New - Solar Tactical HK G3/K91 Kydex RH Grip Wrap - Black - HKP-18915 HK91, G3 Grip Wrap - Right - Kydex

    HK91, G3 Grip Wrap - Right - Kydex

    Solar Tactical

    $69.95
    Solar Tactical HK G3/K91 Kydex RH Grip Wrap Featureless Kydex grip wrap for use with detachable magazines. Prevents a wrap around style pistol grip. Allows the use of the factory magazine release and detachable magazines over 10 rounds. Preban...
    HKP-18915
    $69.95
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  • New - H&K HK UMP/USC Rear Sight Support Roll Pin - HKP-02155
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    HK UMP, USC Rear Sight Support Roll Pin

    H&K Heckler & Koch

    $9.95
    HK UMP & USC Rear Sight Support Roll Pin This is the axle pin that holds the rear sight assembly to the rear sight housing of the receiver on the USC or UMP firearm.
    HKP-02155
    $9.95
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  • Out Of Stock
    New - HK G36/SL8 Dual Optic Replacement Battery - HKP-00009

    HK G36/SL8 Dual Optic Replacement Battery

    $14.95
    HK G36 & SL8 Dual Optic Replacement Lithium Battery The proper battery with the proper voltage for all HK dual optic units.  Please Note: Standard AA batteries WILL NOT work. You need this specialized battery for the optic to function...
    HKP-00009
    $14.95
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  • New - HKP HK UMP/USC (.40 S&W/.45 ACP/9mm) QD Sling Pin for Stock Block B - HKP-18776 HK UMP, USC Sling Pin, Stock Block B - QD
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    HK UMP, USC Sling Pin, Stock Block B - QD

    HKP HK Parts

    $74.95
    Quick Detach Sling Pin for Stock Block B - USC, UMP This Ambidextrous QD Sling Pin allows you to replace your Push Pin Style or Eyelet Sling Loop -  Style Pin in your Stock Block B for use of a QD Sling.
    HKP-18776
    $74.95
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  • New - MM HK93/33/53 Club Foot Stock - HKP-01455 HK33, HK53, HK93 Stock - Club Foot
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    HK33, HK53, HK93 Stock - Club Foot

    Michaels Machines

    $315.95
    MM HK93/33/53 Club Foot Stock This clubfoot ships assembled with a mix of German and US-made parts. Compatible With: HK 93 HK 53 HK 33 Includes: MM 21E Clubfoot Central Stock Section - US Made US Heavy Rubber Buttpad - US Made HK G3 to HK93 /33 Back...
    HKP-01455
    $315.95
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    $315.95
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  • Out Of Stock
    New - H&K MP5 40/10 Flash hider - 3-Lug - HKP-00442 HK MP5 Flash Hider - 3 Lug - 10mm / .40 S&W

    HK MP5 Flash Hider - 3 Lug - 10mm / .40 S&W

    H&K Heckler & Koch

    $199.99
    HK Heckler and Koch's Flash Hider with 3-Lug Connection Fits all factory in-spec 3 Lug MP5 40/10 Barrels. Specifications: Made In Germany 3-Lug Compatible With: HK MP5
    HKP-00442
    $199.99
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