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
    New - Ergo KeyMod Hand Stop - HKP-17885

    Ergo KeyMod Handstop

    Ergo

    $51.95
    KeyMod Hand Stop/Barricade Stop in Black Aggressive textured front for enhanced traction on barricades and obstacles Features: Low profile base also functions as a comfortable hand stop Black anodized 6061-T6 aluminum Compatible With: All KeyMod style...
    HKP-17885
    $51.95
    Out Of Stock
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    $51.95
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  • New - H&K MP5F 9mm Full Auto Bolt Carrier - HKP-00092 HK MP5F Bolt Carrier - Full Auto - 9mm
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    HK MP5F Bolt Carrier - Full Auto - 9mm

    H&K Heckler & Koch

    $1,949.95
    H&K MP5F 9mm Full Auto Bolt Carrier This carrier is the latest and greatest MP5 carrier. Will fit all HK MP5 and HK94's or clones semi or full. These are becoming increasingly hard to find. Get them while you can. This is the newer style that has...
    HKP-00092
    $1,949.95
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    $1,949.95
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  • Out Of Stock
    HK MP7 Back Plate - Complete HK MP7 Back Plate - Complete

    HK MP7 Back Plate - Complete

    H&K Heckler & Koch

    $67.95
    HK MP7 Back Plate - Complete OEM complete back plate assembly for the HK MP7. Direct factory replacement back plate for maintaining or rebuilding your MP7 platform using original HK parts. Compatible With: MP7  
    HKP-22430
    $67.95
    Out Of Stock
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    $67.95
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  • HK MP5 Folding Stock or Brace - HDA3 HK MP5 Folding Stock or Brace - HDA3
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    HK MP5 Folding Stock or Brace - HDA3

    Haga Defense

    $349.95
    HDA3 Stock and Brace System for HK MP5, SP5 The HDA3 is a modular, USA-made stock and brace system developed by Haga Defense and A3 Industries. Built for strength, adaptability, and cross-platform compatibility, it delivers premium rigidity, smooth...
    HKP-22354-M
    $349.95
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    $349.95
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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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    $324.95
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  • HK G36 ACR Folding Stock - Picatinny Adapter HK G36 ACR Folding Stock - Picatinny Adapter
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    HK G36 ACR Folding Stock - Picatinny Adapter

    HKP HK Parts

    $359.95
    HK G36 ACR Folding Stock w/Picatinny Adapter Add the iconic look and renowned functionality of the ACR stock to your G36 with our adapter and stock combo. The universal Picatinny adapter allows the user to swap the F5 ACR stock to other firearms and...
    HKP-22331
    $359.95
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    $359.95
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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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    $189.95
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  • H&K HK 91/G3 Sniper Trigger Group with AC Unity Grip H&K Heckler & Koch HKP-22252 H&K HK 91/G3 Sniper Trigger Group with AC Unity Grip H&K Heckler & Koch HKP-22252
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    HK91, G3 Sniper Trigger Group - AC Unity Grip

    H&K Heckler & Koch

    $699.95
    H&K HK91, G3 Sniper Trigger Group with AC Unity Grip The G3, HK91 match trigger group paired with the AC Unity PSG1 style sniper grip is an outstanding choice for anyone looking to create a tactical and visually impressive build. With its robust...
    HKP-22252
    $699.95
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    $699.95
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  • On Sale
    Used - H&K HK 93/53/33 25 Round Magazine - LEO MARKED - (5.56/.223) - RARE - USED - HKP-99299
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    HK33, HK53, HK93 Magazine - 25 Round - RARE - Used - LEO Marked

    H&K Heckler & Koch

    Now: $249.95
    Was: $349.95
    H&K Heckler & Koch HK33, HK53, HK93 - 25 Round Magazine - LEO MARKED - (5.56/.223) - RARE - USED Priced for ONE Magazine - Condition Varies by Unit - Sold Individually ONLY A FEW UNITS AVAILABLE  Factory-original H&K Heckler &...
    HKP-99299
    Now: $249.95
    Was: $349.95
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  • On Sale
    HK G36 (5.56/.223) 30 Round Magazine - LEO Marked - USED - BLEMISHED Used - H&K G36 (5.56/.223) 30 Round Magazine - LEO Marked - USED - BLEMISHED - HKP-22212-B
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    HK G36 (5.56/.223) 30 Round Magazine - LEO Marked - USED - BLEMISHED

    H&K Heckler & Koch

    Now: $119.95
    Was: $195.99
    H&K G36 (5.56/.223) 30 Round Magazine - LEO Marked - USED - BLEMISHED BROKEN COUPLERS AND LUGS - VARYING CONDITION SHOWN - SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL...
    HKP-22212-B
    Now: $119.95
    Was: $195.99
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    Now: $119.95
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  • Used - H&K 91/G3 (7.62x51/.308) Slimline Forearm - Jungle Green - New Old Stock - HKP-22102 HK91, G3 Slimline Handguard - Jungle Green - New Old Stock
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    HK91, G3 Slimline Handguard - Jungle Green - New Old Stock

    H&K Heckler & Koch

    $39.95
    H&K 91/G3 (7.62x51/.308) Slimline Forearm - Jungle Green - New Old Stock These are a nice addition to the collection. Compatible With: All full forearm length HK 91, G3, PTR style firearms
    HKP-22102
    $39.95
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    $39.95
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  • On Sale
    New - HK 416 Bolt Hold Open Catch - HKP-99101 HK416 Catch - Bolt Hold Open
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    HK416 Catch - Bolt Hold Open

    USA

    Now: $19.95
    Was: $39.95
    HK 416 Bolt Hold Open Catch US-made bolt hold open catch for the HK 416. Compatible  With: HK 416 THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR EXCHANGE.  SALE IS FINAL.  
    HKP-99101
    Now: $19.95
    Was: $39.95
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    Now: $19.95
    Was: $39.95
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