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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  • HK MP5 End Cap with Sling Swivel
HK MP5 End Cap with Sling Swivel
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    HK MP5 End Cap with Sling Swivel

    HKP HK Parts

    $84.95
    HK Alloy Pistol End Cap with Sling Swivel Made from solid billet aircraft grade aluminum with the HK German sling loop and rubber heavy duty H buffer. With the alloy construction this unit will not break like the plastic end caps.  Compatible...
    HKP-18138
    $84.95
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  • Out Of Stock
    New - H&K HK 30 Round 416, HK MR556 Magazine Maritime- TiN - HKP-21468 HK416, MR556 Magazine - 30 Round - Maritime- TiN

    HK416, MR556 Magazine - 30 Round - Maritime- TiN

    H&K Heckler & Koch

    $149.95
    HK 416 & MR556 30 Round Maritime Magazine - TiN Coated Get your hands on some TiN coated factory Heckler & Koch magazines.  Each magazine starts out as a fresh 30 round mag before being professionally dsiassembled, TiN coated, and...
    HKP-21468
    $149.95
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  • New - B&T (5.56/.223) Flash Hider - Suppressor Compatible - Threaded 1/2x28 - Universal - HKP-21394 HK416, MR556, G36, SL8, B&T APC223 Flash Hider - Suppressor Compatible - Threaded 1/2x28
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    HK416, MR556, G36, SL8, B&T APC223 Flash Hider - Suppressor Compatible - Threaded 1/2x28

    B&T Brugger & Thomet

    $139.99
    B&T (5.56/.223) Flash Hider - Suppressor Compatible - Threaded 1/2x28 - Universal Elevate the performance of your HK 416 or MR556 with this premium flash hider. Designed for compatibility with a range of suppressors, this flash hider features a...
    HKP-21394
    $139.99
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  • New - HK G36/UMP Folding Stock Release Spring - HKP-00637
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    HK G36, UMP Folding Stock Release Spring

    H&K Heckler & Koch

    $9.95
    HK G36 Folding Stock Release Spring This is the spring that fits under the stock release button to activate the folding and retention of the G36 or UMP stock. Compatible With: HK G36 HK G36K HK G36C UMP
    HKP-00637
    $9.95
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  • Used - H&K HK MP5 Dented Complete Rear Sight Set - Black - HKP-19247 HK MP5 Rear Sight Set - Dented
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    HK MP5 Rear Sight Set - Dented

    H&K Heckler & Koch

    $49.99
    Rear Sight with Hardware - Used Dented - MP5 German HK MP5 rear sight assembly with a dented 4 position drum. Condition will vary. Includes: HK rear sight Detent Spring windage screw Sight screw Washer Locking washer Compatible With: MP5 MAC-5 clones...
    HKP-19247
    $49.99
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  • New - H&K HK MR762/417/G28 Slim Line Stock - RAL 8K - HKP-17136 HK417, MR762, G28 Slimline Retractable Buttstock - RAL8000
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    HK417, MR762, G28 Slimline Retractable Buttstock - RAL8000

    H&K Heckler & Koch

    $145.95
    Heckler and Koch Slimline Buttstock - RAL 8K New from HK Germany the slim line retractable buttstock fits all MR762, HK 417 buffer tubes. Marked with the HK logo and issued on specialized HK 417, MR762 rifles. Compatible With: HK417, MR762 HK G28 Other...
    HKP-17136
    $145.95
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  • New - H&K HK MR556/HK416 FFRS Retaining Spring - HKP-02617
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    HK416, MR556 FFRS Retaining Spring

    H&K Heckler & Koch

    $9.99
    H&K HK MR556/HK416 FFRS Retaining Spring The retainer spring retains the handguard locking pin on the Free Floating Rail System (FFRS). These can become damaged with the removal of the handguard screws. Once the spring is damaged, they have to be...
    HKP-02617
    $9.99
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  • New - H&K G36/SL8 (5.56/.223) Bolt Head Ejector Pin - HKP-01876
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    G36, SL8 Bolt Head Ejector Pin

    H&K Heckler & Koch

    $7.95
    Bolt Head Ejector Pin For G36 & SL8 This item is the pin that holds the ejector & ejector spring in place. It is a common wear and replacement item and a must-have when doing bolt head maintenance.
    HKP-01876
    $7.95
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  • New - HKP HK UMP/USC (.40 S&W/.45 ACP/9mm) Complete Recoil Rod Assembly - HKP-17989 HK UMP, USC Recoil Rod Assembly, Complete - US Made
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    HK UMP, USC Recoil Rod Assembly, Complete - US Made

    HKP HK Parts

    $59.95
    HKP HK Parts Complete Recoil Spring and Rod Assembly for USC, UMP 45/40/9mm New USA made recoil assembly complete. Our design allows for easy repair and replacement of the recoil spring itself without replacing the entire recoil assembly as found on the...
    HKP-17989
    $59.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Firing Pin Spring - HKP-00262
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    HK UMP, USC Firing Pin Spring

    H&K Heckler & Koch

    $9.95
    H&K UMP/USC (.40 S&W/.45 ACP/9mm) Firing Pin Spring This is a common wear and breakage item. This item also frequently becomes lost by end users when field stripping the UMP and USC Bolts.  Compatible with: All HK UMP & USC Firearms
    HKP-00262
    $9.95
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  • New - H&K (5.56/.223) & (7.62x51/.308) Contact Piece For Paddle Mag Release - HKP-00465 HK91, G3, HK33, HK53, HK93 Paddle Magazine Release Contact Piece
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    HK91, G3, HK33, HK53, HK93 Paddle Magazine Release Contact Piece

    H&K Heckler & Koch

    $29.95
    Heckler and Koch Contact Piece for Paddle Magazine Release 5.56 / .223 and 7.62x51 / .308 German HK manufacture. The contact piece is used in the magazine release assembly for the paddle mag release. Compatible With: HK33, HK53, HK93 HK91, G3, PTR91
    HKP-00465
    $29.95
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  • New - RCM HK 93/53/33 # 8 Locking Piece 53 Degree - HKP-16555
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    HK33, HK53, HK93 Locking Piece # 8 - 53 Degree

    RCM

    $49.95
    RCM HK 93/53/33 # 8 Locking Piece 53 Degree New 53 Degree #8 Locking Piece for the HK 93, 33, C93 & V93 rifles. Made in the USA from ordnance grade steel, heat treated and made to last. A pefect upgrade for your well used or questionable C93 or C93P...
    HKP-16555
    $49.95
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