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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  • Out Of Stock
    Surefire M900V LED Weapon Light with Vertical Grip - Used Surefire M900V LED Weapon Light with Vertical Grip - Used

    Surefire M900V LED Weapon Light with Vertical Grip - Used

    Surefire

    $199.95
    Picatinny Mounted VFG Weapon Light - White and IR Output A rugged, dual-output vertical foregrip light engineered for professional applications. This Vampire-series unit delivers powerful white-light illumination, infrared capability, and intuitive...
    HKP-99347
    $199.95
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  • HK91, G3 Magazine - 15 Round - Alloy HK91, G3 Magazine - 15 Round - Alloy
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    HK91, G3 Magazine - 15 Round - Alloy

    H&K Heckler & Koch

    $44.95
    Heckler and Koch HK91, G3, MSG90 15-Round Alloy Magazine Manufactured by Heckler & Koch and converted to 15-round capacity in the United States using a U.S.-made floorplate. Counts as one U.S.-made part for 922r compliance. Compatible With: HK91,...
    HKP-22427
    $44.95
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  • HK MP5K, SP5K ACR Folding Stock With Adapter - Picatinny HK MP5K, SP5K ACR Folding Stock With Adapter - Picatinny
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    HK MP5K, SP5K ACR Folding Stock With Adapter - Picatinny

    F5 MFG

    $324.95
    HK MP5K, SP5K ACR Folding Stock w/Adapter - Picatinny The HKP picatinny end cap with the F5 ACR stock allows users to easily swap this, and other stocks, between their K and other platforms.  This drop-in ready assembly attaches with the K's two...
    HKP-22351-M
    $324.95
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  • HK MP5 Trigger Group with AC-Unity Grip Conversion Kit HKP HK Parts HKP-22321 HK MP5 Trigger Group with AC-Unity Grip Conversion Kit HKP HK Parts HKP-22321
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    HK MP5 Metal Trigger Housing Conversion Kit - AC Unity Grip

    HKP HK Parts

    $189.95
    HK MP5 Metal Trigger Housing Conversion Kit - AC Unity Grip This kit includes everything you need to convert a polymer MP5 trigger group a robust metal housing. Simply use your existing semi-auto SEF trigger pack to complete the conversion. This...
    HKP-22321
    $189.95
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  • New - MKE AP5-P/M Handguard with Hand Stop - HKP-22221 Century Arms AP5-P, AP5-M Handguard with Handstop
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    Century Arms AP5-P, AP5-M Handguard with Handstop

    MKE

    $34.95
    MKE AP5-P/M Handguard with Hand Stop MKE handguard for the MKE manufactured Century AP5-P and AP5-M.  Please note: Will fit other MP5K style receivers with some slight fitting.  Compatible With: MKE/Century Arms AP5-P MKE/Century Arms...
    HKP-22221
    $34.95
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  • Used - HK90 Series F/A Trigger Box - SEF- USED - HKP-22156 HK MP5, HK90 Series Trigger Box - Full Auto SEF - USED
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    HK MP5, HK90 Series Trigger Box - Full Auto SEF - USED

    H&K Heckler & Koch

    $89.95
    Heckler and Koch USED Full Auto SEF Trigger Box for the HK90 Series UNIT QUALITY MAY VARY - SEE PHOTOS FOR EXAMPLE OF CONDITION RANGE Used genuine HK full-auto trigger box for HK90 series firearms. Controls fire selector function and houses fire control...
    HKP-22156
    $89.95
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  • New - SB Tactical HK MP5K SBA5 Pistol Stabilizing Brace - HKP-21795-M HK MP5K Pistol Stabilizing Brace - SBA5
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    HK MP5K Pistol Stabilizing Brace - SBA5

    SB Tactical

    $248.95
    SB Tactical HK MP5K SBA5 Pistol Stabilizing Brace SB Tactical combined with our MP5K end cap creates a true drop-in brace, perfect for those seeking the flexibility that the SBA5 pistol stabilizing brace offers. With a 5-position adjustable length, this...
    HKP-21795-M
    $248.95
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  • On Sale
    New - HK MP5 QD End Cap with Buffer - Black - BLEMISHED - HKP-20118-B HK MP5 QD End Cap with Buffer - Black - BLEMISHED
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    HK MP5 QD End Cap with Buffer - Black - BLEMISHED

    HKP HK Parts

    Now: $49.95
    Was: $99.95
    HK MP5 QD End Cap with Buffer - Black - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. With this MP5 QD end cap upgrade you will get a heavier buffer...
    HKP-20118-B
    Now: $49.95
    Was: $99.95
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  • New - HKP HK 416 .22 LR A5 Flash Hider - HKP-21575 HK416 A5 Flash Hider - .22 LR
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    HK416 A5 Flash Hider - .22 LR

    HKP HK Parts

    $59.95
    HKP HK 416 .22 LR A5 Flash Hider Our HK Parts A5 flash hider is a directly mounted upgrade that will enhance the appearance of your 416 .22LR build, perfect for those aiming to achieve an authentic A5 style. It comes with an O-ring for secure attachment,...
    HKP-21575
    $59.95
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  • New - Magpul HK SP5 Adapter Brace with Stock - HKP-21411-M HK SP5 Stock With Direct Fit Adapter
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    HK SP5 Stock With Direct Fit Adapter

    Magpul

    $189.95
    HK SP5 Stock With Direct Fit Adapter SP5 DT Magpul stock ready to drop in on any in-spec SP5 receiver or clone. We take our AR SP5 Adapter and attach it onto a mil-spec buffer tube. We then drop it on to the new Magpul DT Carbine stock. This is a great...
    HKP-21411-M
    $189.95
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  • New - GSG9 HK G36C Forearm - Black - HKP-18216 HK G36C Handguard
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    HK G36C Handguard

    GSG9

    $126.95
    GSG9 Handguard with Heat Shield and Hand Stop for HK G36C New GSG9 manufactured forearm with heat shield and hand stop fits all HK G36C's or SL8, G36 conversions sized for the G36C barrel. Each unit also features the hand stop with sling attachment...
    HKP-18216
    $126.95
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  • Out Of Stock
    New - H&K HK G36, HK SL8 Roll Pin for Gas Piston - Black - HKP-16386

    HK G36, SL8 Roll Pin - Gas Piston

    H&K Heckler & Koch

    $9.95
    H&K HK G36, HK SL8 Roll Pin for Gas Piston
    HKP-16386
    $9.95
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    $9.95
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