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 HK 93/53/33 (5.56/.223) Cleaning Kit - HKP-01550 HK33, HK53, HK93 Cleaning Kit - 5.56 / .223
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    HK33, HK53, HK93 Cleaning Kit - 5.56 / .223

    HKP HK Parts / Heckler & Koch

    $89.95
    H&K HK 93/53/33 (5.56/.223) Cleaning Kit New Factory HK German 93, 33, 53, or other HK .223/5.56's cleaning kit for all HK's or clones. This is the factory HK cleaning kit issued by HK as an OEM product. Includes: Cleaning rod for short and long...
    HKP-01550
    $89.95
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  • New - H&K MP5 40/10 Flash hider - 3-Lug - HKP-00442 HK MP5 Flash Hider - 3 Lug - .40 S&W / 10mm
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    HK MP5 Flash Hider - 3 Lug - .40 S&W / 10mm

    H&K Heckler & Koch

    $199.99
    HK Heckler and Koch's Flash Hider with 3-Lug Connection Fits all factory in-spec 3 Lug MP5 40/10 Barrels. Specifications: Made In Germany 3-Lug Compatible With: HK MP5
    HKP-00442
    $199.99
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  • RCM HK SP5K Spec Suppressed Bolt Group RCM HKP-22277 RCM HK SP5K Spec Suppressed Bolt Group RCM HKP-22277
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    HK SP5K Bolt Group - Suppressed - Full Auto - Spec

    RCM

    $409.95
    RCM HK SP5K Spec Suppressed Bolt Group- Full Auto The RCM SP5K Suppressed bolt group is expertly engineered for operating in full auto while suppressed. Although designed as a full-auto bolt group, it also functions perfectly in semi-auto receivers. This...
    HKP-22323
    $409.95
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  • New - H&K HK MR556 A4 Ambi Charging Handle - HKP-21933 HK MR556 A4 Charging Handle - Ambi
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    HK MR556 A4 Charging Handle - Ambi

    H&K Heckler & Koch

    $199.95
    H&K HK MR556 A4 Ambi Charging Handle Upgrade your MR556 or HK416-style rifle with this factory H&K ambidextrous charging handle, designed for smooth, reliable operation from either side. Built to Heckler & Koch’s exacting standards,...
    HKP-21933
    $199.95
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  • New - MKE HK MP5/AP5 4 Position Pictogram (0,1,3,F) Semi-Auto Trigger Group - HKP-21817 HK MP5, AP5 Trigger Group - Semi Auto - 4 Position Pictogram 013F
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    HK MP5, AP5 Trigger Group - Semi Auto - 4 Position Pictogram 013F

    MKE

    $439.95
    MKE HK MP5/AP5 4 Position Pictogram (0,1,3,F) Semi-Auto Trigger Group This 0,1 semi-auto trigger group features the 4 position pictogram 0,1,3,F. Designed with a push pin set up, it serves as a perfect upgrade for the HK MP5 or the Century Arms AP5...
    HKP-21817
    $439.95
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  • New - H&K MP5/SP5 Universal SEF Housing - Like New - HKP-21779 HK MP5/SP5 Universal SEF Housing - Like New
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    HK MP5/SP5 Universal SEF Housing - Like New

    H&K Heckler & Koch

    $149.95
    H&K MP5/SP5 SEF Universal Housing - Clipped & Pinned - Like New The ultimate solution for MP5 and SP5 style receivers, this universal trigger housing simplifies swapping between receivers. German HK-manufactured, it allows you to easily transfer...
    HKP-21779
    $149.95
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  • New - Nefarious Arms HK 416/MR556 10.4" A3 Barrel - HKP-21335 HK416, MR556 Barrel - 5.56 - 10.4" - Threaded 1/2"x28 - A3
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    HK416, MR556 Barrel - 5.56 - 10.4" - Threaded 1/2"x28 - A3

    Nefarious Arms

    $594.95
    Nefarious Arms HK 416/MR556 10.4" A3 Barrel ***THE BARREL EXTENSION RIM IS MARKED "HAUS" DUE TO AN ERROR BY THE BARREL EXTENSION SUPPLIER.  THE MARKING IS NOT VISIBLE ONCE INSTALLED.  THESE BARRELS ARE GENUINE NEFARIOUS BARRELS AS NEFARIOUS...
    HKP-21335
    $594.95
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    $594.95
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  • New - Nefarious Arms HK 416 Gas Block Assembly Tool - HKP-21273 HK416 Gas Block Assembly Tool
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    HK416 Gas Block Assembly Tool

    Nefarious Arms

    $94.95
    Nefarious Arms HK 416 Gas Block Assembly Tool A Nefarious Arms creation for those that like to service or replace their 416 gas block. This assembly tool will effortlessly help you assemble or disassemble your 416 gas block by simply aligning the two...
    HKP-21273
    $94.95
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  • New - HKP HK MP5 .22 LR Aimpoint ACRO Sight Mount - HKP-21236 HK MP5 Optic Mount, Aimpoint ACRO - .22 LR
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    HK MP5 Optic Mount, Aimpoint ACRO - .22 LR

    HKP HK Parts

    $98.95
    HKP - HK MP5 .22LR Optic Mount - ACRO HK Parts now brings you one of the most requested optic mount for the MP5/MP5K platform. Low-profile mount with a direct Aimpoint ACRO mounting interface. The smallest mount in the market with a sleek and clean...
    HKP-21236
    $98.95
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  • On Sale
    New - Franklin Armory HK MP5 - BFSIII HK-C1 – Binary Trigger Group – SEF – Contoured - HKP-20004-M
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    HK MP5, SP5 Binary Trigger Group - SEF Navy - BFSIII - 9mm

    FA Franklin Armory

    Now: $999.95
    Was: $1,299.95
    Franklin Armory HK MP5 - BFSIII HK-C1 – Binary Trigger Group – SEF – Contoured Complete Franklin Armory BFSIII HK-C1 binary trigger pack assembly configured in a 3-position pictogram contoured housing for HK MP5 and SP5 push-pin...
    HKP-20004-M
    Now: $999.95
    Was: $1,299.95
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    Now: $999.95
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  • New - H&K HK MR762/417/G28 Handguard Rail System Screw - Black - HKP-16601 HK416, MR556, HK417, MR762 Handguard Locking Screw
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    HK416, MR556, HK417, MR762 Handguard Locking Screw

    H&K Heckler & Koch

    $16.95
    HK416, MR556, HK417, MR762 - Handguard Locking Screw Replacement handguard locking screw that secures the handguard to the upper receiver.  Compatible With: HK HK416 HK MR556 HK HK417 (2 required per handguard) HK MR762 (2 required per handguard)
    HKP-16601
    $16.95
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  • New - HKP HK MP5 40 Locking Roller -4 - HKP-17561
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    HKP HK MP5 40 Locking Roller -4

    HKP HK Parts

    $11.95
    HK US MP540 Undersized Locking Roller, -4 The proper roller size is essential for proper headspacing of bolt gap. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you need...
    HKP-17561
    $11.95
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    $11.95
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