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 PSG1 (7.62x51/.308) Firing Pin Spring - HKP-00535

    HK PSG1 Firing Pin Spring

    H&K Heckler & Koch

    $0.00
    HK German PSG-1 Firing Pin Spring. New HK German. A Great Item To Have On Hand As A Spare.
    HKP-00535
    $0.00
    Out Of Stock
    Qty in Cart: 0
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    $0.00
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  • B&T APC9 Telescopic Stock Screw – M3x8mm B&T APC9 Telescopic Stock Screw – M3x8mm
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    B&T APC9 Telescopic Stock Screw – M3x8mm

    B&T Brugger & Thomet

    $1.67
    B&T APC9 Telescopic Stock Screw – M3x8mm – Factory Swiss Replacement SOLD INDIVIDUALLY Factory Swiss B&T M3x8mm machine screw used in the APC9 telescopic stock assembly. This metric fastener secures key telescopic stock components...
    HKP-99429
    $1.67
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    Qty in Cart: 0
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    $1.67
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  • On Sale
    HK90 Series Cocking Tube End Cap - Aluminum - USED HK90 Series Cocking Tube End Cap - Aluminum - USED
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    HK90 Series Cocking Tube End Cap - Aluminum - USED

    HKP HK Parts

    Now: $7.95
    Was: $12.95
    HK Cocking Tube End Cap - Aluminum - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. Made from weight-saving aircraft-grade aluminum alloy. US-made. Compatible With: All 90 series HK firearms and...
    HKP-02806-USED
    Now: $7.95
    Was: $12.95
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    Now: $7.95
    Was: $12.95
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  • On Sale
    New - H&K HK P7M13 Magazine Follower - Black - BLEMISHED - HKP-02364-B
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    HK P7M13 Magazine Follower - Black - BLEMISHED

    H&K Heckler & Koch

    Now: $22.95
    Was: $49.95
    H&K HK P7M13 Magazine Follower - Black - BLEMISHED ONLY 2 UNITS AVAILABLE COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. All steel construction, brand new...
    HKP-02364-B
    Now: $22.95
    Was: $49.95
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    Now: $22.95
    Was: $49.95
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  • New - H&K A3 Stock Release Lever Rebuild Kit - HKP-21851
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    HK A3 Buttstock Release Lever Rebuild Kit

    H&K Heckler & Koch

    $14.95
    H&K A3 Stock Release Lever Rebuild Kit This A3 collapsible stock rebuild kit is designed for the release lever on MP5, SP5, 93/53/33, and G3/91 collapsible stocks.  With A3 stocks becoming more expensive it's a great idea to keep this kit on...
    HKP-21851
    $14.95
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    $14.95
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  • New - H&K HK MR762 Drop Safety Catch - HKP-16615 HK MR762 Drop Safety Catch
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    HK MR762 Drop Safety Catch

    H&K Heckler & Koch

    $19.95
    H&K HK MR762 Drop Safety Catch Compatible With: HK MR762
    HKP-16615
    $19.95
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    $19.95
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  • Out Of Stock
    New - H&K HK P7 Series Cocking Lever Axle - HKP-01375

    HK P7 Series Cocking Lever Axle

    H&K Heckler & Koch

    $7.95
    Cocking Lever Axle Compatible With: P7M8 P7M10 P7M13
    HKP-01375
    $7.95
    Out Of Stock
    Qty in Cart: 0
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    $7.95
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  • New - H&K HK Mark 23 Left Side Safety Lever - HKP-01771 HK Mark 23 Left Side Safety Lever
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    HK Mark 23 Left Side Safety Lever

    H&K Heckler & Koch

    $44.95
    HK Mark 23 Left Side Safety Lever  
    HKP-01771
    $44.95
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    Qty in Cart: 0
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    $44.95
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  • New - H&K HK Mark 23 Safety Detent - HKP-01782
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    HK Mark 23 Safety Detent

    H&K Heckler & Koch

    $10.95
    HK Mark 23 Safety Detent  
    HKP-01782
    $10.95
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    $10.95
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  • Out Of Stock
    New - H&K HK VP40/USPC 9mm/.40 S&W Extractor - HKP-01130 HK VP40, USP Compact 9mm, .40 S&W Extractor

    HK VP40, USP Compact 9mm, .40 S&W Extractor

    H&K Heckler & Koch

    $42.95
    H&K HK VP40/USPC 9mm/.40 S&W Extractor New HK German factory OEM part. Compatible With: HK VP40 (Not for the VP9) HK USP Compact 9mm HK USP Compact 40 & .357 HK USP LEM models
    HKP-01130
    $42.95
    Out Of Stock
    Qty in Cart: 0
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    $42.95
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  • HK MP5, AP5 Magazine Catch Push Button
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    HK MP5, AP5 Magazine Catch Push Button

    MKE

    $6.95
    HK MP5, AP5 Magazine Catch Button Push button for magazine catchCompatible with: HK MP5, SP5 HK MP5K, SP5K HK SP89 HK94 HK33, HK53, HK93 HK91, G3 In-spec. clones and custom builds
    HKP-22548
    $6.95
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    $6.95
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  • HK91, G3 Retractable Buttstock Retaining Ring - 19x1.2mm
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    HK91, G3 Retractable Buttstock Retaining Ring - 19x1.2mm

    H&K Heckler & Koch

    $12.95
    HK91, G3 19x1.2mm Retaining Ring for A3 Retractable Buttstocks This 19x1.2 retaining ring (circlip-style) is used in the G3 and HK91 A3 retractable buttstock assembly to help retain the locking components in place for proper fit and function. Compatible...
    HKP-22482
    $12.95
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    $12.95
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