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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  • Used - H&K 91/G3 (7.62x51/.308) Rear Sight Assembly - Used-Excellent - HKP-02229 HK91, G3 Rear Sight Assembly - Used-Excellent
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    HK91, G3 Rear Sight Assembly - Used-Excellent

    H&K Heckler & Koch

    $18.95
    HK German G3, 91, PTR Rear Sight Assembly - Used Excellent Condition HK German factory sight with rear sigh detent and detent spring installed. These sights are the finest hand-picked, sorted sights available at a fraction of the cost of a new $85 set...
    HKP-02229
    $18.95
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    $18.95
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  • Used - H&K 93/53/33 (5.56/.223) Surplus Fixed Stock - A2 - Black - HKP-19075 HK33, HK53, HK93 A2 Fixed Buttstock - Surplus
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    HK33, HK53, HK93 A2 Fixed Buttstock - Surplus

    H&K Heckler & Koch

    $249.95
    Surplus - Fixed Stock - HK93,33,53 HK93 Surplus Stock - Black comes with a matching buttpad. Ready to install on your HK or clone rifle. Last remaining units. Once all are gone there will be no more. Compatible HK 93, 33, 53 *Please note that these are...
    HKP-19075
    $249.95
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    $249.95
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  • New - RCM MP5K/SP89 9mm Locking Piece - 110 Degree - HKP-01465 HK MP5K, SP89 Locking Piece - 110 Degree - 9mm
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    HK MP5K, SP89 Locking Piece - 110 Degree - 9mm

    RCM

    $33.95
    MP5K, SP89 Locking Piece - 110 Degree - RCM US-Made Locking Piece. Made from ordnance grade steel, heat treated, and made to last by RCM. HK no longer makes the 110-degree locking piece as they use the 100-degree locking piece in all 9mm MP5 and MP5K...
    HKP-01465
    $33.95
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    $33.95
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  • New - HKP MP5 RMR Rear Sight Optic Mount - HKP-20506 HK MP5 Optic Mount - RMR - Rear Sight
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    HK MP5 Optic Mount - RMR - Rear Sight

    HKP HK Parts

    $97.95
    HK MP5- RMR Optic Mount: The  mounting solution to properly mount your RMR directly to the rear sight base on an MP5 or any other receiver that utilizes the same style rear sight base. The mount is the perfect height to co-witness your RMR with your...
    HKP-20506
    $97.95
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    $97.95
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  • Out Of Stock
    New - H&K HK416 A5 Factory German Extended Castle Nut - HKP-19164

    HK416, MR556 Buffer Tube Castle Nut - A5 Extended

    H&K Heckler & Koch

    $75.95
    Heckler and Koch A5 Factory German Extended Castle Nut for HK416 and HK MR556 Original HK Factory German steel 416 A5 Extended Castle Nut. Perfect for MR556, HK 416 A5 builds, or upgrades. 
    HKP-19164
    $75.95
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    $75.95
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  • Used - H&K Full Auto Paddle Magazine Release Bushing HK German - Used - HKP-02303
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    HK MP5, SP5, HK90 Series Paddle Mag Release Bushing - Full Auto - Used

    H&K Heckler & Koch

    $4.95
    H&K Full Auto Paddle Magazine Release Bushing HK German - Used This part is for use in all 90-series H&K weapon systems. Used for installing a paddle mag release. Please Note: This is not for use on semi-auto HK builds. This part is used for...
    HKP-02303
    $4.95
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    $4.95
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  • Out Of Stock
    New - B&T Ambidextrous Sling Pin- Large - HKP-16887 B&T Ambidextrous Sling Pin- Large

    B&T Ambidextrous Sling Pin- Large

    B&T Brugger & Thomet

    $57.95
    B&T Stock Ambidextrous Sling Pin That Replaces The Push Pin For Stock Each ambi sling pin will allow the use of a sling mounting location for either a left or right hand shooter for replacing the rear stock push pin with this ambi sling pin. Each...
    HKP-16887
    $57.95
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    $57.95
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  • Out Of Stock
    New - POF HK MP5 9mm SEF (0,1,30 Pictogram) Housing - Push Pin - HKP-19826 HK MP5, HK33, HK53 Trigger Housing - SEF 0,1,30 Pictogram - Push Pin - 9mm

    HK MP5, HK33, HK53 Trigger Housing - SEF 0,1,30 Pictogram - Push Pin - 9mm

    POF

    $89.95
    POF 9mm SEF (0,1,30 Pictogram) Housing - Push Pin for HK MP5 This is a H&K contract SEF grip housing. The Housing features the classic finger grooves. This part is not HK German quality, but a great value for the price. Specifications: Push...
    HKP-19826
    $89.95
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  • New - Snap Hook 1" - Universal - HKP-00730 Sling Snap Hook 1" - Universal
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    Sling Snap Hook 1" - Universal

    USA

    $4.95
    Snap Hook 1" This is a 1" HK-style snap hook for sling or other custom projects. We also offer 1.25" HK sling hooks, as these are great spare parts to have on hand.
    HKP-00730
    $4.95
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    $4.95
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  • New - HKP MP5, MP5K Scope Tab - Weldment - HKP-17503
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    HK MP5, MP5K Scope Tab - Weldment

    HKP HK Parts

    $9.95
    MP5, MP5K Sight Tab - Weldment HK MP5, MP5K 17-4 Stainless H900 rear sight tab. The most correct MP5, MP5K rear sight base available. If you want your build to look as factory correct as possible then this sight base is an absolute must. Compatible...
    HKP-17503
    $9.95
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  • Out Of Stock
    On Sale
    New - HKP 30 Round HK UMP 9mm Magazine - FDE - HKP-20481 HK UMP Magazine - 30 Round - 9mm - FDE

    HK UMP Magazine - 30 Round - 9mm - FDE

    HKP HK Parts

    Now: $24.95
    Was: $49.95
    HK Parts 9mm magazine - FDE for HK UMP THIS SHADE OF FDE HAS BEEN DISCONTINUED.  STOCK UP AT HALF PRICE BEFORE THEY ARE SOLD OUT FOR GOOD. UMP 30 round magazine for the UMP. Each magazine features enhanced steel feed lips, and a 30-round magazine...
    HKP-20481
    Now: $24.95
    Was: $49.95
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    Now: $24.95
    Was: $49.95
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  • Used - H&K 91/G3 (7.62x51/.308) Stock Set w/ Backplate - OD Green - Hand Picked - HKP-18237
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    HK91, G3 Buttstock Set with Backplate - OD Green - Hand Picked

    H&K Heckler & Koch

    $84.95
    Original G3, 91, PTR German Army Used Surplus O.D. Green Stock Set - Complete  Factory HK German Production. Each stock set is used but in perfect working order. Each set was hand picked and the best sets we have in stock. Includes:  Slimline...
    HKP-18237
    $84.95
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    $84.95
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