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 - MKE PTR PDW Telescopic Stock - HKP-21376 HK51, PTR PDW A3 Telescopic Stock
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    HK51, PTR PDW A3 Telescopic Stock

    MKE

    $459.95
    MKE HK51, PTR PDW Telescopic Stock A3 Factory new MKE stock professionally converted to fit HK51 and PTR PDW rifles and pistols. This stock was modified with a heavy profile collapsing rod insert heat treated for longevity. The correct collapsing length...
    HKP-21376
    $459.95
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  • New - AC-Unity HK PSG1 Style Sniper Pistol Grip - HKP-21628 HK91, G3 Barrel - FMP - 17.7" - Threaded 15x1
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    HK91, G3 Barrel - FMP - 17.7" - Threaded 15x1

    FMP HK CONTRACT

    $89.95
    HK G3, 91 Barrel - 7.62/.308 - 17.7" - Threaded 15x1 Original 17.7" FMP G3 barrel threaded 15x1 RH. Portuguese manufactured to HK's military specifications. These surplus barrels are perfect for building a FMP G3 parts kit or as a replacement. Barrels...
    HKP-22532
    $89.95
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  • New - HKP HK MP5K Tactical Tri-Rail - HKP-16765-M HK MP5K Tactical Tri-Rail
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    HK MP5K Tactical Tri-Rail

    HKP HK Parts

    $89.95
    HKP Tactical Tri-Rail - Black - MP5K  Our new modular tactical forearm comes with 3 rails on the left, right and bottom. That are removable and adjustable for you own taste and mission requirements. Made from aircraft grade aluminum and steel...
    HKP-16765-M
    $89.95
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  • New - MKE HK33, HK53, HK93 5.56 / .223- A3 Telescopic Stock - HKP-21287-M HK93, HK53, HK33 A3 Telescopic Stock
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    HK93, HK53, HK33 A3 Telescopic Stock

    MKE

    $399.95
    MKE A3 Telescopic Stock in Cerakote for HK93, HK33, HK53, and Z43 A3 telescopic stock for the HK33, HK53, HK93 built by MKE on HK tooling.  These MKE stocks are your best option for a new production stock now that HK has discontinued them...
    HKP-21287-M
    $399.95
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  • Used - H&K Standard Roller 8.00mm - Used - HKP-19374 HK Standard Roller 8.00mm - Used
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    HK Standard Roller 8.00mm - Used

    H&K Heckler & Koch

    $7.95
    8.00mm Standard Size (zero or unmarked) For HK Roller Lock Bolt Head HK spec unmarked 8.00mm roller that will fit all HK bolt heads including HK91/G3, HK93/33/53, HK94, MP5, SP89 all clones and the Cetme & Cetme clones. The best roller on the market...
    HKP-19374
    $7.95
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  • New - HKP 91/93/33/G3 (7.62x51/.308) Enhanced HK Buffer For HK German MSG90 & PSG1 - HKP-01014 HK91, G3, HK93, HK33, PTR Buffer - Enhanced
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    HK91, G3, HK93, HK33, PTR Buffer - Enhanced

    HKP HK Parts

    $129.95
    HKP Enhanced Buffer This buffer is the factory correct style PSG1 & MSG90 stock buffer found in all factory HK PSG1, MSG90 German stocks. The overall diameter is .80" Compatible With: HK 91 G3, 93, 33, or PTR stock.
    HKP-01014
    $129.95
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  • New - H&K 53 Factory Recoil Spring - HKP-02228
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    HK53 Factory Recoil Spring

    H&K Heckler & Koch

    $14.95
    HK German HK53 Replacement Recoil Spring This rare spring is a must-have spare for your HK53 firearm.
    HKP-02228
    $14.95
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  • New - HTA HK MP5SD Barrel Cleaning Tool - HKP-21347-M HK MP5SD Barrel Brush Cleaning Tool
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    HK MP5SD Barrel Brush Cleaning Tool

    HiTec Arms

    $119.95
    HiTec Arms barrel tool for cleaning your HK MP5SD Barrel cleaning brush tool for integrally suppressed ported barrels. This is a good tool to have on hand for any MP5SD owner to clean carbon build up and avoid your suppressor seizing on your barrel. Made...
    HKP-21347-M
    $119.95
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  • New - H&K 20 Round HK MR556/416 Magazine - Black - HKP-00029 HK416, MR556 Magazine - 20 Round
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    HK416, MR556 Magazine - 20 Round

    H&K Heckler & Koch

    $74.95
    Heckler and Koch HK 20 Round HK MR556 and HK416 5.56/.223 Magazine New HK416 and HK MR556 Factory 20 Round Steel Maritime Coated Magazine. Will fit and work in all AR-15/M16 weapons. Perfect for those who need a lower profile magazine or who will be...
    HKP-00029
    $74.95
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  • New - H&K 91/G3 (7.62x51/.308) Mag Release Set - HKP-00929 HK91, G3 Magazine Release Set
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    HK91, G3 Magazine Release Set

    H&K Heckler & Koch

    $34.95
    Heckler and Koch Magazine Release Set (Left to Right) for HK91, G3 This HK German manufactured magazine release set for HK .308 pattern rifles consists of 4 pieces. Includes: Magazine Catch Magazine Catch Spring Push Button Clamping Sleeve to retain...
    HKP-00929
    $34.95
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  • New - JMAC Universal HRD M-LOK Handstop - HKP-21235 JMAC Universal HRD M-LOK Handstop
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    JMAC Universal HRD M-LOK Handstop

    JMAC Customs

    $49.95
    JMAC Custom HRD M-LOK Handstop (H)and(R)etention(D)evice Compact, lightweight, and reversible. Features: M-LOK Compatible Fits in and across M-LOK Slots Includes mounting hardware 7075 T6 Aluminum Hard Coat Anodized The quarter-turn T-slot nuts have...
    HKP-21235
    $49.95
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  • New - H&K HK MR556/416 Sling Loop Backplate - Ambidextrous - HKP-17151 HK416, MR556 Sling Loop Backplate - Ambidextrous
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    HK416, MR556 Sling Loop Backplate - Ambidextrous

    H&K Heckler & Koch

    $34.95
    H&K HK MR556/416 Sling Loop Backplate - Ambidextrous Genuine HK German manufactured 416, MR556 new style backplate with sling loop. Compatible With: HK MR556, HK 416 buffer tubes All Standard AR-15, M4 & M16 buffer tubes
    HKP-17151
    $34.95
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    $34.95
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