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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  • On Sale
    HK SL8 Stock Cheek Riser Piece - BLEMISHED HK SL8 Stock Cheek Riser Piece - BLEMISHED
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    HK SL8 Stock Cheek Riser Piece - BLEMISHED

    H&K Heckler & Koch

    Now: $17.95
    Was: $34.95
    HK SL8 Stock Cheek Riser Piece - BLEMISHED   VARYING CONDITION SHOWN - SOLD INDIVIDUALLY   MISSING SPACER   COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES...
    HKP-01701-B
    Now: $17.95
    Was: $34.95
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    Now: $17.95
    Was: $34.95
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  • On Sale
    HK MP5K, SP89, SP5K End Cap with Sling Swivel - 9mm - HK - USED HK MP5K, SP89, SP5K End Cap with Sling Swivel - 9mm - HK - USED
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    HK MP5K, SP89, SP5K End Cap with Sling Swivel - 9mm - HK - USED

    H&K Heckler & Koch

    Now: $63.95
    Was: $99.95
    HK MP5K, SP89, SP5K End Cap with Sling Swivel - 9mm - HK - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Each pistol end cap is OEM HK German MP5K and MP5K-N and has the HK German factory buffer...
    HKP-00394-USED
    Now: $63.95
    Was: $99.95
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    Now: $63.95
    Was: $99.95
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  • On Sale
    HK MP5, MKE AP5 Bolt Head - Stripped - GUNSMITH SPECIAL HK MP5, MKE AP5 Bolt Head - Stripped - GUNSMITH SPECIAL
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    HK MP5, MKE AP5 Bolt Head - Stripped - GUNSMITH SPECIAL

    Other

    Now: $69.95
    Was: $149.95
    Turkish Contract HK MP5, MKE AP5 Stripped Bolt Head - GUNSMITH SPECIAL VARYING CONDITION SHOWN - SOLD INDIVIDUALLY Please Note: Will require work before being functional. HKP recommends the work be performed by a professional gunsmith. The Condition will...
    HKP-99372
    Now: $69.95
    Was: $149.95
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    Now: $69.95
    Was: $149.95
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  • On Sale
    HK MP5, HK94 Tri-rail System Clone - USED HK MP5, HK94 Tri-rail System Clone - USED
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    HK MP5, HK94 Tri-rail System Clone - USED

    Fab Defense

    Now: $125.95
    Was: $219.95
    Fab Defense HK MP5, HK94 Tri-Rail System Clone - USED ONLY 5 UNITS AVAILABLE - VARYING CONDITION SHOWN - SOLD INDIVIDUALLY One-piece tri-rail handguard system designed for HK MP5 and HK94 pattern firearms. Precision machined from aluminum, this rail...
    HKP-99371
    Now: $125.95
    Was: $219.95
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    Now: $125.95
    Was: $219.95
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  • HK MP5, G3, MKE AP5 Elbow Spring with Roller - Full-Auto HK MP5, G3, MKE AP5 Elbow Spring with Roller - Full-Auto
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    HK MP5, G3, MKE AP5 Elbow Spring with Roller - Full-Auto

    MKE

    $4.95
    MKE AP5, HK MP5, G3 Full-Auto Elbow Spring with Roller This elbow spring is manufactured by MKE from steel and is used in MP5 and G3 pattern trigger packs. It provides proper tension and function for the trigger pack elbow and is suitable for...
    HKP-22489
    $4.95
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    Qty in Cart: 0
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    $4.95
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  • WOOX Woody Stock - Walnut - Picatinny Mount WOOX Woody Stock - Walnut - Picatinny Mount
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    WOOX Woody Stock - Walnut - Picatinny Mount

    WOOX

    $228.95 - $298.95
    WOOX Woody Stock - Walnut The WOOX Woody Stock is a premium upgrade for rifles and SMGs featuring a Picatinny stock interface. Crafted from solid American walnut, it delivers classic warmth with modern ergonomics; featuring an adjustable cheek riser, QD...
    HKP-22461-M
    $228.95 - $298.95
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    $228.95 - $298.95
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  • On Sale
    MKE AP5, MP5 Front Sight Tower - UNFINISHED - BLEMISHED MKE HKP-22220-B MKE AP5, MP5 Front Sight Tower - UNFINISHED - BLEMISHED MKE HKP-22220-B
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    HK MP5, AP5 Front Sight Tower - UNFINISHED - BLEMISHED

    MKE

    Now: $22.46
    Was: $49.95
    MKE AP5, MP5 Front Sight Tower - UNFINISHED - BLEMISHED SOLD INDIVIDUALLY - UNFINISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The front sight tower is a...
    HKP-22220-B
    Now: $22.46
    Was: $49.95
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    Now: $22.46
    Was: $49.95
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  • On Sale
    HK MP5 4 Position Burst Trigger Group - 0,1,3,F - USED H&K Heckler & Koch HKP-02610-USED HK MP5 4 Position Burst Trigger Group - 0,1,3,F - USED H&K Heckler & Koch HKP-02610-USED
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    HK MP5 Burst Trigger Group - 4 Position 0,1,3,F - USED

    H&K Heckler & Koch

    Now: $1,949.96
    Was: $2,599.95
    HK MP5 4 Position Burst Trigger Group - 0,1,3,F - USED SOLD INDIVIDUALLY USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK German 4 Position 3 Round Burst Trigger Group – complete and ready for...
    HKP-02610-USED
    Now: $1,949.96
    Was: $2,599.95
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    Now: $1,949.96
    Was: $2,599.95
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  • HK91, G3 Folding Stock - HDA3 HK91, G3 Folding Stock - HDA3
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    HK91, G3 Folding Stock - HDA3

    Haga Defense

    $349.95
    HDA3 Folding Stock for HK91, G3 The HDA3 is a modular, USA-made stock system developed by Haga Defense and A3 Industries. Built for strength, adaptability, and cross-platform compatibility, it delivers premium rigidity, smooth adjustability, and...
    HKP-22356-M
    $349.95
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    $349.95
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  • HK MP5, MP5K Flash Hider for Tri-Lug Barrels - 1/2x28 - Taper Mount HK MP5, MP5K Flash Hider for Tri-Lug Barrels - 1/2x28 - Taper Mount
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    HK MP5, MP5K Flash Hider for Tri-Lug Barrels - 1/2x28 - Taper Mount

    JMAC Customs

    $116.95
    1/2x28 - Plan B Taper Mount Flash Hider for MP5 & MP5K This flash hider is specifically designed for use on MP5, MP5K, and clone firearms featuring the MP5-spec. tri-lug.  The internal profile clears the front of the tri-lugs when installed...
    HKP-22407
    $116.95
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    Qty in Cart: 0
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    $116.95
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  • HK G3 - FMP Early Type Demilled Front End - No Cocking Handle Assembly FMP HK CONTRACT HKP-22377 HK G3 - FMP Early Type Demilled Front End - No Cocking Handle Assembly FMP HK CONTRACT HKP-22377
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    HK FMP G3 Early Type De-Milled Front End - No Cocking Handle Assembly

    FMP HK CONTRACT

    $68.95
    HK G3 - FMP Early Type De-milled Front End - No Cocking Handle Assembly Early style G3 front end with no hanger from de-milled FMP G3 parts kits. Perfect for custom builds.  Includes: Cocking tube Trunnion Barrel pin
    HKP-22377
    $68.95
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    Qty in Cart: 0
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    $68.95
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  • HK51 MOE PR Stock Magpul HKP-22338 AP51 MOE PR Stock - PDW
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    AP51 MOE PR Stock - PDW

    Magpul

    $249.95
    Magpul Century AP51 PDW MOE PR Stock Designed for the Century AP51 PDW platform, this adapter ensures a precise fit and solid lockup for stock installation. Built for durability and proper alignment, it maintains correct stock geometry and function...
    HKP-22346
    $249.95
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    $249.95
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