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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  • Out Of Stock
    HK416, MR556, MR762 Snap Hook Adapter for Slimline Buttstocks - Ambi HK416, MR556, MR762 Snap Hook Adapter for Slimline Buttstocks - Ambi

    HK416, MR556, MR762 Snap Hook Adapter for Slimline Buttstocks - Ambi

    H&K Heckler & Koch

    $177.95
    H&K MR556/MR762 Ambi Slimline Buttstock Snap Hook Adapter Genuine H&K snap hook adapter designed to provide ambidextrous sling attachment points for MR556 and MR762 slimline buttstocks.  Compatible...
    HKP-22100
    $177.95
    Qty in Cart: 0
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    $177.95
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  • New - H&K MR762 A4 Pivot Pin - HKP-21958 HK417, MR762 Takedown Pin - Front - A4 Style

    HK417, MR762 Takedown Pin - Front - A4 Style

    H&K Heckler & Koch

    $43.99
    H&K MR762 A4 Receiver Front Takedown Pin German-made factory pivot pin for the MR762 A4.  Will work with A1 models as well.
    HKP-21958
    $43.99
    Qty in Cart: 0
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    $43.99
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  • New - B&T Telescopic Stock End Cap - HKP-21721 B&T Telescopic Stock End Cap

    B&T Telescopic Stock End Cap

    B&T Brugger & Thomet

    $8.95
    B&T Telescopic Stock End Cap B&T replacement end cap for telescopic stocks.  Limits the extension of the stock to keep it from sliding out of the guides.
    HKP-21721
    $8.95
    Qty in Cart: 0
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    $8.95
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  • HK93, HK33 Spare Parts Kit HK93, HK33 Spare Parts Kit

    HK93, HK33 Spare Parts Kit

    H&K Heckler & Koch

    $209.95
    HKP HK93, HK33 Spare Parts Kit Spare parts kits for the most commonly worn parts needed to keep your HK93, HK33 going. This offering also includes a pouch to safely store all your replacement parts...
    HKP-20674
    $209.95
    Qty in Cart: 0
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  • On Sale
    New - HK G36/SL8 (5.56/.223) Cocking Handle Axle Pin - HKP-18367 HK G36, SL8 Cocking Handle Axle Pin - USA

    HK G36, SL8 Cocking Handle Axle Pin - USA

    USA

    Now: $6.98
    Was: $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...
    HKP-18367
    Now: $6.98
    Was: $10.95
    Qty in Cart: 0
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    Now: $6.98
    Was: $10.95
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  • Out Of Stock
    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
    Qty in Cart: 0
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    $11.95
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  • New - H&K MR556 A4 Hammer Spring - HKP-22083

    HK MR556 A4 Hammer Spring

    H&K Heckler & Koch

    $5.95
    H&K MR556 A4 Hammer Spring Genuine H&K hammer spring for the MR556 A4. Compatible With: HK MR556 A4
    HKP-22083
    $5.95
    Qty in Cart: 0
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    $5.95
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  • New - H&K HK MR762/417/G28 Handguard Rail System Screw - Black - HKP-16601 HK416, MR556, HK417, MR762 Handguard Locking Screw

    HK416, MR556, HK417, MR762 Handguard Locking Screw

    H&K Heckler & Koch

    $16.95
    HK416, MR556, HK417, MR762 - Handguard Locking Screw Replacement handguard locking screw that secures the handguard to the upper receiver.  Compatible With: HK HK416
    HKP-16601
    $16.95
    Qty in Cart: 0
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  • New - H&K MP5 40/10 Extractor - HKP-00410 HK MP5 Extractor - .40 S&W, 10mm, .357 SIG

    HK MP5 Extractor - .40 S&W, 10mm, .357 SIG

    H&K Heckler & Koch

    $69.95
    H&K Heckler and Koch New Latest Production 1.4mm Extractor for HK MP5 .40, 10mm, .357  This is the latest and greatest upgraded extractor made by HK. This is also a great upgrade for the many...
    HKP-00410
    $69.95
    Qty in Cart: 0
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    $69.95
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  • Out Of Stock
    Used - H&K A3 Retractable Stock Clamping Lever Spring - HKP-01089

    HK A3 Retractable Buttstock Clamping Lever Spring

    H&K Heckler & Koch

    $19.95
    HK German Retractable Stock Clamping Lever Spring For A3 Retractable Stocks This spring is the most common breakage/wear item in the internal workings of the A3 retractable stock.
    HKP-01089
    $19.95
    Qty in Cart: 0
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    $19.95
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  • New - H&K HK USPC/P30/45C Recoil Spring Washer Retainer - HKP-01594

    HK45 Compact, USP Compact, P30 Recoil Spring Washer Retainer

    H&K Heckler & Koch

    $9.95
    New HK German Recoil Spring Washer Retainer This is the retaining washer that holds the spring captive on the end of the recoil assembly and pushes against the recoil spring. Compatible With:
    HKP-01594
    $9.95
    Qty in Cart: 0
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    $9.95
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  • New - H&K HK USP Series Hammer Strut Pin - HKP-01633

    HK USP Series Hammer Strut Pin

    H&K Heckler & Koch

    $7.95
    HK USP Series Hammer Strut Pin Cylinder Pin ISO 8750 - 1.5 x 8mm.  Compatible With: HK USP 9mm HK USP 40 S&W HK USP Compact 9mm HK USP Compact 40 S&W HK USP Compact 357 SIG HK USP Compact 45 ACP
    HKP-01633
    $7.95
    Qty in Cart: 0
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    $7.95
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