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 MP5 40/10 Low Impulse Locking Piece #24 - HKP-00438 HK MP5 Locking Piece #24 - 90 Degree - Low Impulse - .40 S&W, 10mm
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    HK MP5 Locking Piece #24 - 90 Degree - Low Impulse - .40 S&W, 10mm

    H&K Heckler & Koch

    $129.95
    New HK German MP5 40 or MP5 10mm Low Impulse Locking Piece Marked #24 This is the factory 90-degree locking piece. Used for standard loads with low to average impulses. Compatible With: MP5 10 MP5 40 MP5 .357
    HKP-00438
    $129.95
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  • Out Of Stock
    New - H&K MP5 A3 Retractable Stock Sling Attachment Bar- Weldable - HKP-17427 HK MP5 A3 Retractable Buttstock Sling Attachment Bar - Weldable

    HK MP5 A3 Retractable Buttstock Sling Attachment Bar - Weldable

    H&K Heckler & Koch

    $9.95
    HK MP5 A3 Retractable Stock Sling Bar This part offering is a factory German HK part new unpainted and ready to weld to your application. Can also be used for upgrading a non-ambi stock to an ambi stock by attaching the sling bar to the A3 stock...
    HKP-17427
    $9.95
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    $9.95
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  • Used - H&K (7.62/.308) & (5.56/.223) Flash Hider - 15x1 - Used - HKP-00717 H&K (7.62/.308) & (5.56/.223) Flash Hider - 15x1 - Used H&K Heckler & Koch HKP-00717
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    HK33, HK53, HK93, HK91, HK G3 Flash Hider - Threaded 15x1 - Used

    H&K Heckler & Koch

    $15.95
    Heckler and Koch's Flash Hider - 15x1 RH - Used Used / surplus HK German flash hider threaded 15x1 RH.  Please inspect pictures to ascertain the average condition of these flash hiders. Compatible With: HK33 HK53 HK93 HK G3 HK91  
    HKP-00717
    $15.95
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    $15.95
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  • On Sale
    HK UMP, USC Optic Rail - Picatinny HK UMP, USC Optic Rail - Picatinny
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    HK UMP, USC Optic Rail - Picatinny

    H&K Heckler & Koch

    Now: $12.95
    Was: $19.95
    HK UMP, USC Optic Rail - Picatinny Factory HK UMP and USC Picatinny machined aluminum optic rail with mounting hardware. Compatible With: HK UMP, USC
    HKP-22541
    Now: $12.95
    Was: $19.95
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    Now: $12.95
    Was: $19.95
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  • HK91, G3 Trunnion - New Old Stock HK91, G3 Trunnion - New Old Stock
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    HK91, G3 Trunnion - New Old Stock

    H&K Heckler & Koch

    $79.95
    Heckler and Koch Trunnion for HK91, G3 - New Old Stock Original Heckler and Koch trunnion for HK91 and G3 rifles. This is a new old stock, original-production component from older HK manufacturing runs and has not been previously installed. Ideal for...
    HKP-99363
    $79.95
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    $79.95
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  • HK G36 Folding Stock or Brace  - HDA3 HK G36 Folding Stock or Brace  - HDA3
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    HK G36 Folding Stock or Brace - HDA3

    Haga Defense

    $349.95
    HK G36 Folding Stock or Brace - HDA3 The HDA3 is a modular, USA-made stock or brace system developed by Haga Defense and A3 Industries. Built for strength, adaptability, and cross-platform compatibility, it delivers premium rigidity, smooth...
    HKP-22357-M
    $349.95
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    $349.95
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  • HK G3, HK33, HK93 Bayonet w/Scabbard - NOS H&K Heckler & Koch HKP-22366 HK G3, HK33, HK93 Bayonet w/Scabbard - NOS H&K Heckler & Koch HKP-22366
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    HK G3, HK33, HK93 Bayonet with Scabbard - NOS

    H&K Heckler & Koch

    $227.95
    HK G3, HK33, HK93 Bayonet with Scabbard - New Old Stock Genuine German HK military surplus bayonet in original wrap. These are the 12-groove version of the popular military bayonet.  Scabbard is included. Compatible With: HK G3 HK91 HK33 HK93
    HKP-22366
    $227.95
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    $227.95
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  • On Sale
    Franklin Armory CZ Scorpion - BFSIII - Binary Trigger - Curved - BLEMISHED FA Franklin Armory HKP-18881-B Franklin Armory CZ Scorpion - BFSIII - Binary Trigger - Curved - BLEMISHED FA Franklin Armory HKP-18881-B
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    CZ Scorpion Binary Trigger - Curved - BFSIII - BLEMISHED

    FA Franklin Armory

    Now: $349.99
    Was: $495.95
    Franklin Armory CZ Scorpion - BFSIII - Binary Trigger - Curved - BLEMISHED DAMAGED PACKAGING - PRODUCT UNAFFECTED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL...
    HKP-18881-B
    Now: $349.99
    Was: $495.95
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    Now: $349.99
    Was: $495.95
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  • HKP HK MP5 .22LR Aimpoint ACRO Sight - Raised Height HKP HK Parts HKP-22248-M HK MP5 Optic Mount - .22LR - Raised - Aimpoint ACRO
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    HK MP5 Optic Mount - .22LR - Raised - Aimpoint ACRO

    HKP HK Parts

    $119.95
    HKP HK MP5 .22LR Aimpoint ACRO Sight Mount - Raised Height MP5 .22LR raised height mount for the Aimpoint ACRO mounting interface. Our ACRO mounts provide an unobstructed view of the factory HK sights through the mount giving the shooter the best of both...
    HKP-22248-M
    $119.95
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    $119.95
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  • On Sale
    New - MKE AP5, MP5 Front Sight Tower - HKP-22220 HK MP5, AP5 Front Sight Tower
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    HK MP5, AP5 Front Sight Tower

    MKE

    Now: $37.46
    Was: $49.95
    MKE AP5, MP5 Front Sight Tower The front sight tower is a critical component for a perfect build. The MKE front sight tower is great option for new builds or replacement of damaged units. Compatible With: Century Arms AP5 Century Arms AP5K/M Clones with...
    HKP-22220
    Now: $37.46
    Was: $49.95
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    Now: $37.46
    Was: $49.95
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  • New - B&T Assault Closed Tine Muzzle Device - HK416/MR556 - 1/2x28 - HKP-22217 Lee Sporting LS5 HK MP5K Complete Trigger Group Flat Trigger - Semi shelf - 3D-Printed Nylon - BLEMISHED Lee Sporting, Magpul HKP-20484-B
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    HK416, MR556 Muzzle Device - Assault - Closed Tine - 1/2x28

    B&T Brugger & Thomet

    $109.00
    B&T Assault Closed Tine Muzzle Device - HK416/MR556 - 1/2x28 Factory B&T 1/2x28 flash hider and suppressor adapter for 5.56 rifles. Includes: ROTEX flash hider Shim kit Rocksett pipette Features: Swiss-manufactured Threaded 1/2x28 High...
    HKP-22217
    $109.00
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    $109.00
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  • Out Of Stock
    RCM HK MP5 Recoil Rod Assembly HK MP5 Recoil Rod Assembly

    HK MP5 Recoil Rod Assembly

    RCM

    $54.95
    RCM HK MP5 Recoil Rod Assembly The recoil rod and spring assembly is a great item to have on hand for replacement and spares as this is a consumable part. Compatible With: HK MP5 NOT compatible with SP5 with the F-style recoil rod MP5 clones and custom...
    HKP-22202
    $54.95
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    $54.95
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