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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  • HK416, MR556 QD Handguard - A4 Style - 10" HK416, MR556 QD Handguard - A4 Style - 10"
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    HK416, MR556 QD Handguard - A4 Style - 10"

    H&K Heckler & Koch

    $497.95
    H&K HK416, MR556 A4 10" Quick Disconnect Handguard Factory HK A4 handguard featuring HK's A4 quick disconnect latch.  Compatible with A1 and A4 rifles. Features: Quick disconnect latch for tool-free removal and installation 12 o'clock Picatinny...
    HKP-22426
    $497.95
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    $497.95
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  • On Sale
    HK G3 Standard Stock Buttpad - Green - Used - BLEMISHED H&K Heckler & Koch HKP-21865-ODG-B HK G3 Standard Stock Buttpad - Green - Used - BLEMISHED H&K Heckler & Koch HKP-21865-ODG-B
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    HK G3 Butt Plate with Catch Spring - Standard Stock - Green - Used - BLEMISHED

    H&K Heckler & Koch

    Now: $0.97
    Was: $2.95
    HK G3 Standard Stock Buttpad - Green - Used - BLEMISHED SOLD INDIVIDUALLY - CRACKED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This German-made buttpad is an excellent replacement for your...
    HKP-21865-ODG-B
    Now: $0.97
    Was: $2.95
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    Was: $2.95
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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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  • A3 Tactical Picatinny Skelestock A3 Tactical Picatinny Skelestock
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    A3 Tactical Picatinny Skelestock

    JMK

    $338.95 - $353.95
    A3 Tactical Picatinny Skelestock The A3 Tactical Skelestocks are fixed-length folding skeleton stocks meticulously machined from 6061 aluminum. An ambidextrous hinge enables it to fold either to the right or left, depending on the mounting...
    HKP-22410-M
    $338.95 - $353.95
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    $338.95 - $353.95
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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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    $116.95
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  • Angled Foregrip - M-LOK - Walnut Angled Foregrip - M-LOK - Walnut
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    Angled Foregrip - M-LOK - Walnut

    JMK

    $43.95
    JMK Angled foregrip M-LOK - Walnut JMK's M-LOK covers feature an integrated hand stop to ensure a secure grip during use. They are an excellent choice for pairing with JMK M-LOK Covers, providing your build with a high-quality finish. These covers are...
    HKP-22405-M
    $43.95
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    $43.95
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  • Rail Panel Cover - M-LOK - 3 Slot Rail Panel Cover - M-LOK - 3 Slot
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    Rail Panel Cover - M-LOK - 3 Slot

    JMK

    $18.95 - $23.95
    Rail Panel Cover - M-LOK - 3 Slot JMK M-LOK rail panels are compatible with platforms featuring M-LOK slots. These modular panels are suited for numerous applications. Each panel is sold individually. M-LOK panels are CNC-machined from solid walnut...
    HKP-22403-M
    $18.95 - $23.95
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    $18.95 - $23.95
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  • Rail Panel Cover - M-LOK - 2 Slot Rail Panel Cover - M-LOK - 2 Slot
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    Rail Panel Cover - M-LOK - 2 Slot

    JMK

    $13.95 - $18.95
    JMK Rail Panel Cover - M-LOK - 2 Slot JMK M-LOK rail panels are compatible with platforms featuring M-LOK slots. These modular panels are suited for numerous applications. Each panel is sold individually. M-LOK panels are CNC-machined from solid...
    HKP-22402-M
    $13.95 - $18.95
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    $13.95 - $18.95
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  • On Sale
    HK416, MR556 CQC Pistol Grip - Walnut HK416, MR556 CQC Pistol Grip - Walnut
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    HK416, MR556 CQC Pistol Grip - Walnut

    JMK

    Now: $59.96
    Was: $78.95
    JMK HK416, MR556 CQC pistol grip - Walnut The CQC pistol grip by JMK is crafted from CNC-machined black walnut. After machining, the grip is dyed to a uniform color and finished with a catalyzed satin seal. These grips are compatible with any firearm...
    HKP-22401-M
    Now: $59.96
    Was: $78.95
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    Now: $59.96
    Was: $78.95
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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 - 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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    $68.95
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