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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  • On Sale
    New - H&K HK 45/45C Left Side Safety Lever - Black - HKP-01770
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    HK45, HK45 Compact Left Side Safety Lever

    H&K Heckler & Koch

    Now: $26.95
    Was: $29.95
    HK 45/45C Left Side Safety Lever This control lever is for those who are right-handed and want the control lever on the left-hand side of the frame. This is the V1 selector with a decocking function and safety...
    HKP-01770
    Now: $26.95
    Was: $29.95
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  • On Sale
    New - H&K HK USPC/45/45C Magazine Locking Plate - Black - HKP-02250 HK45, HK45C, USP Compact Magazine Locking Plate
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    HK45, HK45C, USP Compact Magazine Locking Plate

    H&K Heckler & Koch

    Now: $6.95
    Was: $7.95
    HK USPC, 45, & 45C Magazine Locking Plate New factory German HK. Compatible With: HK45 HK45 Tactical HK45C HK45C Tactical HK USPC .45 HK USPC .45 Tactical
    HKP-02250
    Now: $6.95
    Was: $7.95
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    Now: $6.95
    Was: $7.95
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  • On Sale
    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

    Now: $10.95
    Was: $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
    Now: $10.95
    Was: $11.95
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  • On Sale
    New - H&K UMP (9mm) Extractor - HKP-00266
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    HK UMP Extractor - 9mm

    H&K Heckler & Koch

    Now: $54.95
    Was: $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
    Now: $54.95
    Was: $60.95
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  • Out Of Stock
    New - H&K HK 45/45C V3 Left Side Decock Only Lever - HKP-02706

    HK45, HK45 Compact V3 Left Side Decock Only Lever

    H&K Heckler & Koch

    $49.95
    Decock Lever ONLY For Left Side Of Frame - HK45, HK45C This control lever is for those who are right-handed and want the control lever on the left-hand side of the frame with the decock function only.  Compatible With: HK45, HK45...
    HKP-02706
    $49.95
    Out Of Stock
    Qty in Cart: 0
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    $49.95
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  • On Sale
    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

    Now: $49.95
    Was: $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
    Now: $49.95
    Was: $54.95
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    Now: $49.95
    Was: $54.95
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  • On Sale
    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

    Now: $28.95
    Was: $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
    Now: $28.95
    Was: $31.95
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    Was: $31.95
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  • On Sale
    New - HK G36/SL8 Extractor - HKP-18882 HK G36, SL8 Extractor
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    HK G36, SL8 Extractor

    USA

    Now: $39.95
    Was: $67.95
    G36 & HK SL8 Extractor For Bolt Head Compatible With: All G36 variants SL8-1, SL8-6
    HKP-18882
    Now: $39.95
    Was: $67.95
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    Was: $67.95
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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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    $2.95
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  • On Sale
    New - USA HK G36, HK SL8 Magazine Paddle Release - HKP-18222 HK G36, SL8 Paddle Magazine Release
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    HK G36, SL8 Paddle Magazine Release

    USA

    Now: $15.95
    Was: $17.95
    US Magazine Paddle Release for HK G36 and HK SL8 HK G36 Mag Release or mag catch.  Compatible With: SL8 G36 G36K G36C
    HKP-18222
    Now: $15.95
    Was: $17.95
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    Now: $15.95
    Was: $17.95
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  • On Sale
    New - H&K HK MR556/416 Extractor Axle Pin - HKP-00040
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    HK416, MR556 Extractor Axle Pin

    H&K Heckler & Koch

    Now: $10.95
    Was: $11.95
    HK MR556 & 416 Extractor Axle Pin This factory HK German part holds the extractor in place on the bolt head. This item needs to be changed each time it is removed per HK. Compatible With: HK MR556 HK 416 M27 HK 416 A5  
    HKP-00040
    Now: $10.95
    Was: $11.95
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  • Out Of Stock
    HK MP5 Barrel Retaining Pin - 5.015mm H&K Heckler & Koch HKP-22284 HK MP5 Barrel Retaining Pin - 5.015mm H&K Heckler & Koch HKP-22284

    HK MP5 Barrel Retaining Pin - 5.015mm

    H&K Heckler & Koch

    $14.95
    H&K 90 Series Barrel Retaining Pin - 5.015mm Each barrel pin is used for installing a new or replacement barrel. HK suggests using a new factory barrel pin when installing or reinstalling an HK barrel.  Compatible With:  HK MP5, SP5, MP5K,...
    HKP-22284
    $14.95
    Out Of Stock
    Qty in Cart: 0
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    $14.95
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