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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  • HK21 FMP Complete Build Kit- Matching Numbers - MM Barrel HKP HK Parts HKP-21626-1 HK21 FMP Complete Build Kit- Matching Numbers - MM Barrel HKP HK Parts HKP-21626-1
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    HK21 FMP Complete Build Kit - Non Matching Numbers - MM Barrel

    FMP HK CONTRACT

    $4,294.97
    HK21 Complete Build Kit- Non Matching Numbers HK Parts brings you another exhaustive parts kit. Our HK21 parts kit includes everything you need to resurrect an iconic classic and hit the range for belt-fed action. We also included our own hanger with a...
    HKP-22378
    $4,294.97
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  • HK91, G3 Backplate Assembly - Used FMP HK CONTRACT HKP-22374-USED HK91, G3 Backplate Assembly - Used FMP HK CONTRACT HKP-22374-USED
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    HK91, G3 Backplate Assembly - Surplus

    FMP HK CONTRACT

    $14.95
    FMP HK91, G3 Backplate Assembly - Used/Surplus G3 surplus backplate assembly manufactured by FMP on HK tooling. Compatible With: HK G3, HK91
    HKP-22374
    $14.95
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    $14.95
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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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  • Out Of Stock
    New - B&T 5.56 Rotex-SF Titanium HUB Adapter - HKP-21713 B&T 5.56 Rotex-SF Titanium HUB Adapter

    B&T 5.56 Rotex-SF Titanium HUB Adapter

    B&T Brugger & Thomet

    $275.00
    B&T 5.56 Rotex-SF Titanium HUB Adapter The B&T Rotex-SF HUB is a durable mounting system compatible with all 1.375x24TPI "HUB" suppressors. The HUB easily threads into compatible suppressors and can be secured with a spanner wrench or...
    HKP-21713
    $275.00
    Out Of Stock
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    $275.00
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  • On Sale
    New - HKP HK MP5 40/10 Dual Magazine Clamp - BLEMISHED - HKP-21614-BL-B HK MP5 40/10 Clamp - Dual Magazine - BLEMISHED
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    HK MP5 40/10 Clamp - Dual Magazine - BLEMISHED

    HKP HK Parts

    Now: $35.95
    Was: $49.95
    HKP HK MP5 40/10 Dual Magazine Clamp DINGS - INSTALLATION MARKINGS COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The HK Parts MP5 40/10 dual magazine clamp is...
    HKP-21614-BL-B
    Now: $35.95
    Was: $49.95
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    Was: $49.95
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  • Used - HK G3 Incomplete Backplate - Painted - HKP-21541 HK G3 Incomplete Backplate - Painted
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    HK G3 Incomplete Backplate - Painted

    H&K Heckler & Koch

    $29.95
    HK G3 Incomplete Backplate -  Factory German G3 refinished backplate. A great replacement or spare to have around to replace your broken or worn out backplates.  Please note you will need two rivets, nylon ring, recoil spring in order to...
    HKP-21541
    $29.95
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    $29.95
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  • New - B&T G36 (5.56/.223) Flash Hider with Interface for Rotex - HKP-21531 HK G36 Flash Hider with Interface for Rotex
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    HK G36 Flash Hider with Interface for Rotex

    B&T Brugger & Thomet

    $144.99
    B&T G36 (5.56/.223) Flash Hider with Interface for Rotex Compatible With: HK G36 HK93, HK33 5.56/.223 firearms threaded 15X1 RH Specifications: Made in Switzerland Threaded 15x1 RH Does not include face shims
    HKP-21531
    $144.99
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    $144.99
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  • On Sale
    New - JMAC G36K/HK33 Compensator (KeyMicro) - Threaded 15x1 - HKP-21257 HK G36K, HK33 Compensator - KeyMicro - Threaded 15x1
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    HK G36K, HK33 Compensator - KeyMicro - Threaded 15x1

    JMAC Customs

    Now: $86.95
    Was: $109.95
    JMAC 5.56 / .223 KeyMicro Compensator Threaded 15x1 for HK G36K and HK33 In order to use this device with a suppressor, it must be installed by a professional to ensure it is properly mounted and aligned. Do NOT shoot without checking alignment with bore...
    HKP-21257
    Now: $86.95
    Was: $109.95
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    Now: $86.95
    Was: $109.95
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  • New - Blitzkrieg PTR Flat Tip Front Sight Gen 2 - Orange - HKP-21103 PTR Flat Tip Front Sight - Gen 2 - Orange
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    PTR Flat Tip Front Sight - Gen 2 - Orange

    Blitzkrieg Components

    $84.95
    Blitzkrieg PTR Flat Tip Front Sight Gen 2 - Orange The Blitzkrieg Gen 2 HK-style front sight delivers a fast and precise aiming point with its conventional flat-tipped post and bright orange stripe. Designed for easy installation, it utilizes a roll pin...
    HKP-21103
    $84.95
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    $84.95
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  • Out Of Stock
    New - HK MR556 Eyelet Sling Adapter - HKP-21064-M HK416, MR556, HK417, MR762 Eyelet Sling Adapter

    HK416, MR556, HK417, MR762 Eyelet Sling Adapter

    HKP HK Parts

    $89.95
    HK MR556, MR762 Eyelet Sling Adapter for Carrying Sling  Eyelet sling adapter for HK MR556 and MR762 platforms. Designed to match RAL8000 and tanodized handguards, this adapter installs at the front of the rail to provide a secure sling attachment...
    HKP-21064-M
    $89.95
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    $89.95
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  • Out Of Stock
    New - H&K MP5 40/10 Semi-Auto 4 Position (0,1,2,F) Trigger Housing - Clipped & Pinned - HKP-19924 HK MP5 Trigger Housing - 4 Position 0,1,2,F Semi Auto - Clipped and Pinned - 40/10

    HK MP5 Trigger Housing - 4 Position 0,1,2,F Semi Auto - Clipped and Pinned - 40/10

    H&K Heckler & Koch

    $249.95
    Heckler and Koch Semi-Auto 4 Position 0,1,2,F Trigger Housing Clipped and Pinned for HK MP5 40,10  This factory German trigger housing is designed for the MP5 40,10 with a 4 position pictogram (0,1,2,F). It comes clipped and pinned for use in...
    HKP-19924
    $249.95
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    $249.95
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  • New - Geissele HK 416 Super Modular M-LOK 14.5" Rail - DDC - HKP-19808 HK416 Handguard - Super Modular M-LOK - 14.5"- DDC
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    HK416 Handguard - Super Modular M-LOK - 14.5"- DDC

    Geissele

    $549.95
    14.5" HK416 Super Modular Rail M-LOK - DDC (Desert Dirt Color)   The Super Modular Rail HK416 M-LOK was designed to replace the standard rail on an HK416 or MR556 weapon platform. The rail system utilizes the stock HK barrel nut, but incorporates...
    HKP-19808
    $549.95
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    $549.95
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