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 UMP (9mm) Extractor - HKP-00266
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    HK UMP Extractor - 9mm

    H&K Heckler & Koch

    $60.95
    New HK German USC/UMP 9mm Extractor This is the perfect spare part to have for your UMP or USC 9mm conversion. Hard to find and only available here at HKPARTS.
    HKP-00266
    $60.95
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  • New - HKP HK21E/23E Rear Sight Base - HKP-21467 HK21E, HK23E Rear Sight Base
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    HK21E, HK23E Rear Sight Base

    HKP HK Parts

    $38.95
    HKP HK21E/23E Rear Sight Base US manufactured billeted from solid ordnance grade bar stock. Each unit is precisely machined to factory tolerances.  Requires post installation machining to accommodate a scope. Compatible With: HK21E HK23E
    HKP-21467
    $38.95
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  • New - H&K HK VP9, HK VP40 Disassembly Lever - HKP-16818 HK VP9, VP40 Disassembly Lever
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    HK VP9, VP40 Disassembly Lever

    H&K Heckler & Koch

    $24.95
    Disassembly Lever VP9 & VP40 New HK German VP9, VP40 take down lever. This is the lever that is designed to take the remove the slide from the frame.  All steel manufacture. Compatible With: HK VP9 HK VP9A1 F HK VP9A1 K HK VP40
    HKP-16818
    $24.95
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  • New - H&K HK P30 Series Left Slide Release Lever - Black - HKP-01879
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    HK P30 Series Left Slide Release Lever

    H&K Heckler & Koch

    $54.95
    Slide Release Lever Left - P30   Latest HK production. Compatible With: P30 P30SK 
    HKP-01879
    $54.95
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  • New - H&K G36/SL8 (5.56/.223) Cocking Handle Axle Pin - HKP-01877
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    HK G36, SL8 Cocking Handle Axle Pin

    H&K Heckler & Koch

    $11.95
    HK German G36 & SL8 Cocking Handle Axle Pin 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 HK SL8
    HKP-01877
    $11.95
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  • New - HKP Torx Binary Upgrade Screw Set - HKP-21816
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    HK Torx Screw Set for Binary Selector Lever - Upgrade

    HKP HK Parts

    $2.95
    HKP Torx Binary Upgrade Screw Set Upgrade your binary selector levers with our Torx hardware set.  Torx hardware is less likely to strip than standard allen key hardware.  Good spares to have on hand as well. Note: Each set comes with 2 screws.
    HKP-21816
    $2.95
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  • New - H&K HK P Series Complete Spurred Hammer - HKP-16540 HK P Series Complete Spurred Hammer
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    HK P Series Complete Spurred Hammer

    H&K Heckler & Koch

    $54.95
    H&K HK P Series Complete Spurred Hammer New German HK spurred hammer complete. Compatible With: All non LEM pistol below: P30, P30L, P30SK P2000 P2000 SK
    HKP-16540
    $54.95
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  • New - H&K HK MR556/416 Threaded Pin for Buttstock Insert - HKP-16604 HK416, MR556 Threaded Pin for Buttstock Release Inserts - E1, E2
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    HK416, MR556 Threaded Pin for Buttstock Release Inserts - E1, E2

    H&K Heckler & Koch

    $9.99
    H&K HK MR556/416 Threaded Pin for E1/E2 Buttstock Release Lever Insert New HK German manufactured E1/E2 stock release and tightening screw that takes the slack and slop out of the stock when in desired position. Compatible With: HK MR556 HK 416
    HKP-16604
    $9.99
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  • New - H&K Cocking Tube End Cap Detent - HKP-18050
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    HK MP5, HK91, G3, HK33 Cocking Tube Detent End Cap

    H&K Heckler & Koch

    $4.95
    HK German Cocking Tube End Cap/Dust Cap Detent HK German cocking tube detent for all steel and aluminum cocking tube end caps. Made of steel and finished in black.
    HKP-18050
    $4.95
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  • New - H&K Detent Plate For HK45/HK45C Variant 5,6 & 9 - HKP-02079
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    HK45, HK45C Detent Plate - Variant 5,6,9

    H&K Heckler & Koch

    $54.95
    H&K Detent Plate New HK German manufacture safety ONLY detent plate. This detent plate will convert the firearm to safety only with no decocking functions. Compatible With: HK45 HK45 Tactical HK45C HK45C Tactical
    HKP-02079
    $54.95
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  • Out Of Stock
    New - H&K HK Mark 23 Firing Pin Block Spring - HKP-01599

    HK Mark 23 Firing Pin Block Spring

    H&K Heckler & Koch

    $9.99
    HK Mark 23 Firing Pin Block Spring Compatible With: Mark 23 Socom .45
    HKP-01599
    $9.99
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  • New - H&K HK 45/45C V2 Right Side LH Lever - Black - HKP-02416 HK45, HK45 Compact V2 Right Side LH Lever
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    HK45, HK45 Compact V2 Right Side LH Lever

    H&K Heckler & Koch

    $31.95
    HK 45 & 45C V2 Right Side LH Lever This is the control lever for left-hand shooters. This would be the lever on the right side of the frame for left-hand shooters. The V2 left lever will allow for both the safety...
    HKP-02416
    $31.95
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