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 - Cartridge Case Deflector, Shell Deflector - MP5, MP5K - Billet - HKP-17574
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    HK MP5, MP5K Cartridge Case Deflector, Shell Deflector - Billet

    HKP HK Parts

    $19.95
    Cartridge Case Deflector, Shell Deflector - MP5, MP5K - Billet New US made case deflector for receiver flat or receiver for all MP5, HK94, MP5K, & SP89 builds. The case deflector is riveted or welded in place on the ejection port of the 9mm receiver...
    HKP-17574
    $19.95
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  • New - HKP HK MP5, MP5SD Steel Cocking Tube Support - Universal - HKP-18089 HK MP5, MP5SD Cocking Tube Support - Universal - Steel
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    HK MP5, MP5SD Cocking Tube Support - Universal - Steel

    HKP HK Parts

    $64.95
    MP5SD, MP5 Universal All Steel Cocking Tube Support 9mm - USA Made from ordnance grade stainless steel from the factory HK German print & specs. An HK German quality part at a great price point. Each MP5 9mm cocking tube support will include the...
    HKP-18089
    $64.95
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  • Out Of Stock
    New - JMAC Universal HRD M-LOK Handstop - HKP-21235 JMAC Universal HRD M-LOK Handstop

    JMAC Universal HRD M-LOK Handstop

    JMAC Customs

    $49.95
    JMAC HRD M-LOK Handstop (H)and(R)etention(D)evice Compact, lightweight, & 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 - HKP HK 91 Polymer To Metal Trigger Group Conversion Kit - HKP-17362 HK91 Polymer To Metal Trigger Group Conversion Kit
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    HK91 Polymer To Metal Trigger Group Conversion Kit

    HKP HK Parts

    $225.95
    HK 91/PTR 91 Polymer To Metal Trigger Group Conversion Kit. This is everything you will need to convert the lower trigger group on your HK 91 from polymer to metal housing with contoured grip. Just use your existing trigger pack to complete the...
    HKP-17362
    $225.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Rear Stock Axle Pin - HKP-00604
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    HK UMP, USC Buttstock Axle Pin

    H&K Heckler & Koch

    $30.95
    HK German UMP Rear Stock Axle Pin This is the HK factory German stock pin that allows you to attach the stock to either the factory receiver of a UMP or for those that are doing the USC to UMP conversion. This is required to attach the stock to the...
    HKP-00604
    $30.95
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  • New - HKP SP5K Bench Mat - HKP-18213 HK SP5K Bench Mat
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    HK SP5K Bench Mat

    HKP HK Parts

    $13.95
    HK MP5K, SP5K, SP89 Gunsmithing Bench Mat This isn't your ordinary gun cleaning mat. Show your pride for your HK SP5K firearm while using our high quality neoprene rubber backed and cloth topped gun cleaning mat to protect your gun bench, desk, kitchen...
    HKP-18213
    $13.95
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  • New - HKP 9mm US Made Trigger Pack - 4 U.S. 922 Parts - HKP-17878 HK MP5 Trigger Pack - Semi Auto - 9mm - 922r
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    HK MP5 Trigger Pack - Semi Auto - 9mm - 922r

    HKP HK Parts

    $269.95
    Trigger Pack For MP5, HK94 Variants Such as Zenith, POF- 4 US 922r Compliant Parts HK MP5, HK94 9mm Semi Auto Trigger Pack complete. Each Trigger group incorporates the following US made compliant parts completely assembled & ready to drop in. The...
    HKP-17878
    $269.95
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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 - 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 Ambidextrous Sling Pin O-Ring - HKP-01090
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    Sling Pin O-Ring - Ambi

    H&K Heckler & Koch

    $1.95
    H&K Ambidextrous Sling Pin O-Ring HK ambidextrous sling pin replacement O-ring for all ambidextrous sling pins. This item is a common wear/breakage part that does need to be replaced from time to time. This is the part that creates the + seal to keep...
    HKP-01090
    $1.95
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  • New - Botach Battle Steel HK MP5 Ultra-Low-Profile Mount for Trijicon MRO - HKP-19530 HK MP5 Mount - Trijicon MRO - Ultra Low Profile - Battle Steel
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    HK MP5 Mount - Trijicon MRO - Ultra Low Profile - Battle Steel

    Botach Tactical

    $69.95
    Botach Battle Steel HK Ultra-Low Profile Integrated Mounting Platforms for the Trijicon MRO Ultra-low-profile mount for HK MP5/HK33/HK53 firearms.  Features a lower 1/3 cowitness for the Trijicon MRO sights.   Compatible With: HK MP5 &...
    HKP-19530
    $69.95
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  • HK MP5, MP5K Soft Case - Load Out - 28" HK MP5, MP5K Soft Case - Load Out - 28"
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    HK MP5, MP5K Soft Case - Load Out - 28"

    HKP HK Parts

    $79.95
    HK Parts Load Out Soft Case 28" long for storing your HK MP5 The HK Parts MP5 Load Out soft case was designed with versatility in mind.  The case can be used to transport 1 or 2 MP5 platform firearms and up to 9 magazines securely in the included...
    HKP-21670
    $79.95
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