Small Parts

Small Parts

Explore our extensive selection of HK small parts at HKParts, perfect for repairs, upgrades, and custom builds. Our inventory includes high-quality, precision-machined replacement parts and maintenance kits designed for a wide range of HK models. Whether you need push pins, springs, or custom components, our HK-specific small parts ensure optimal performance and durability for your firearm.

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    New - H&K HK USP/45 New Style Hammer Strut - HKP-01250

    HK45, USP New Style Hammer Strut

    H&K Heckler & Koch

    $12.95
    H&K HK USP/45 New Style Hammer Strut Compatible With: HK USP 45 HK USP 40 HK USP 9mm HK USP Tactical, Elite, Expert HK45 HK45 Tactical
    HKP-01250
    $12.95
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  • New - GSG9 HK G36/SL8 (5.56/.223) Firing Pin - HKP-18256 HK G36, SL8  Firing Pin
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    HK G36, SL8 Firing Pin

    GSG9

    $28.95
    HK G36, G36K, G36C & SL8 Firing Pin - USA A must have spare part for all G36 models. Made in the USA. Fully machined and nitrided for superior strength. Compatible With: G36 G36K G36C SL8
    HKP-18256
    $28.95
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  • New - HKP HK MP5 40 Locking Roller +4 - HKP-17562
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    HKP HK MP5 40 Locking Roller +4

    HKP HK Parts

    $11.95
    HK US MP540 Undersized Locking Roller, +4 The proper roller size is essential for proper headspacing of bolt gap. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you need...
    HKP-17562
    $11.95
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  • New - H&K HK Mark 23 Rear Sight Retaining Screw - HKP-01628
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    HK Mark 23 Rear Sight Retaining Screw

    H&K Heckler & Koch

    $19.95
    HK Mark 23 Rear Sight Retaining Screw
    HKP-01628
    $19.95
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  • New - H&K HK P30 Series Right Slide Release Lever - Black - HKP-01880 HK P30 Series Right Slide Release Lever
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    HK P30 Series Right Slide Release Lever

    H&K Heckler & Koch

    $44.95
    HK P30 Series Right Slide Release Lever  
    HKP-01880
    $44.95
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  • New - H&K HK MR556/MR762/416/417 Disconnector Spring - Short - HKP-02675
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    HK416, MR556, HK417, MR762 Disconnector Spring - Short

    H&K Heckler & Koch

    $6.99
    Heckler and Koch HK416, MR556, HK417, MR762 Disconnector Spring - Short This is the shorter spring of the 2 found in the trigger assembly. Compatible With: HK416, MR556 HK417, MR762
    HKP-02675
    $6.99
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  • New - H&K HK VP9, HK VP40 Catch Spring for Disassembly Lever - HKP-16786
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    HK VP9, VP40 Disassembly Lever Spring

    H&K Heckler & Koch

    $5.95
    Catch Spring For Disassembly Lever HK VP9, HK VP40 Compatible With: HK VP9 HK VP9A1 F HK VP9A1 K HK VP40
    HKP-16786
    $5.95
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  • New - H&K HK MR556/MR762/416/417 Disconnector - HKP-02674
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    HK416, MR556, HK417, MR762 Disconnector

    H&K Heckler & Koch

    $18.95
    Heckler and Koch HK416, MR556, HK417, MR762 Disconnector for Lower New HK German manufactured part. This is the latest generation of HK disconnector for the HK MR and HK HK416 and HK417 family of firearms. Compatible With: HK416, MR556 HK417,...
    HKP-02674
    $18.95
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  • New - HK G36/SL8 (5.56/.223) Cocking Handle Axle Pin - HKP-18367 HK G36, SL8 Cocking Handle Axle Pin - USA
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    HK G36, SL8 Cocking Handle Axle Pin - USA

    USA

    $10.95
    HK G36, SL8 Cocking Handle Axle Pin - US Made This is the rivet pin that is used to attach the swiveling cocking handle to the body of the carrier. These can be replaced as they break and wear. Compatible With: HK G36 models HK SL8 models
    HKP-18367
    $10.95
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    New - H&K 93/53/33 (5.56/.223) 25 Round Magazine Spring - HKP-00483

    HK33, HK53, HK93 Magazine Spring - 25 Round

    H&K Heckler & Koch

    $11.95
    HK 93, 33, & 53 Magazine Replacement Spring For 25-Round Magazines Hard to find and a must-have spare for your HK mags. No longer in production.
    HKP-00483
    $11.95
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  • Out Of Stock
    New - H&K MR556 A4/416 Rear Takedown Pin - HKP-22029 HK416, HK417, MR556, MR762 Takedown Pin - Rear - A4 Style

    HK416, HK417, MR556, MR762 Takedown Pin - Rear - A4 Style

    H&K Heckler & Koch

    $43.95
    H&K MR556, HK416, HK417, MR762 Rear Takedown Pin Factory A4 rear takedown pin.  Will work for A1 and A4 applications.   Compatible With: HK MR556 A1 and A4 HK416 HK MR762 A1 and A4 HK417 AR-14, M4, M16    
    HKP-22029
    $43.95
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  • New - H&K HK MR556/416 Forward Assist Plunger Pin - HKP-17542
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    HK416, MR556 Forward Assist Plunger Pin

    H&K Heckler & Koch

    $9.95
    H&K HK MR556/416 Forward Assist Plunger Pin  
    HKP-17542
    $9.95
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