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 - HK 416 Bolt Hold Open Catch - HKP-99101 HK416 Catch - Bolt Hold Open
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    HK416 Catch - Bolt Hold Open

    USA

    Now: $19.95
    Was: $39.95
    HK 416 Bolt Hold Open Catch US-made bolt hold open catch for the HK 416. Compatible  With: HK 416 THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR EXCHANGE.  SALE IS FINAL.  
    HKP-99101
    Now: $19.95
    Was: $39.95
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  • New - HKP HK VP9/VP9SK, HK VP40 Trigger Safety Latch - Black - HKP-16773 HK VP9, VP9SK, VP40 Safety Latch - Trigger
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    HK VP9, VP9SK, VP40 Safety Latch - Trigger

    HKP HK Parts

    $4.95
    HKP HK VP9/VP9SK, HK VP40 Trigger Safety Latch
    HKP-16773
    $4.95
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  • New - H&K HK VP9/VP9SK, HK VP40 Drop Safety - HKP-16836 HK VP9, VP9SK, HK VP40 Drop Safety
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    HK VP9, VP9SK, HK VP40 Drop Safety

    H&K Heckler & Koch

    $46.95
    H&K HK VP9/VP9SK, HK VP40 Drop Safety   Compatible With: HK VP9 HK VP9A1 F HK VP9A1 K HK VP9SK HK VP40
    HKP-16836
    $46.95
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  • New - H&K VP9/VP9SK, HK VP40 Axle For Drop Safety - HKP-16837 HK VP9, VP9SK, VP40 Drop Safety Axle
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    HK VP9, VP9SK, VP40 Drop Safety Axle

    H&K Heckler & Koch

    $31.95
    H&K VP9/VP9SK, HK VP40 Axle For Drop Safety
    HKP-16837
    $31.95
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  • New - H&K HK MR762/417 Threaded Pin For Buttstock Insert - HKP-16609 HK417, HK MR762 Threaded Pin for Buttstock Insert
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    HK417, HK MR762 Threaded Pin for Buttstock Insert

    H&K Heckler & Koch

    $4.95
    H&K HK MR762/417 Threaded Pin For Buttstock Insert HK MR762, HK 417 threaded pin for the buttstock release lever insert. Compatible With: HK MR762 HK 417
    HKP-16609
    $4.95
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  • New - H&K HK P7M13 Magazine Follower - Black - HKP-02364
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    HK P7M13 Magazine Follower

    H&K Heckler & Koch

    $49.95
    HK P7M13 Magazine Follower All steel construction, brand new HK German manufacture.  Compatible With: HK P7M13 magazines
    HKP-02364
    $49.95
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  • New - H&K HK 45/P30SK/P2000 Lockout Device Ball Bearing - HKP-02273
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    H45, KP30SK, P2000 Lockout Device Ball Bearing

    H&K Heckler & Koch

    $4.95
    HK 45, P30SK, & P2000 Lockout Device Ball Bearing   Compatible With: HK45, HK45 Tactical HK45C, HK45C Tactical HK P30SK P2000 & P2000SK
    HKP-02273
    $4.95
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  • HK USP Firing Pin - New Style - Titanium HK USP Firing Pin - New Style - Titanium
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    HK USP Firing Pin - New Style - Titanium

    HKP HK Parts

    $49.95
    HKP HK USP New Style Titanium Firing Pin A solid billet CNC offering at 40+% lighter than comparable steel firing pins. Our titanium firing pins travel faster in the slide, delivering a quicker lock time & enhancing accuracy. Titanium pins also carry...
    HKP-17826
    $49.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Hammer Spring - Left - HKP-01898
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    HK UMP, USC Hammer Spring - Left

    H&K Heckler & Koch

    $13.95
    HK UMP & USC - Left Side Hammer Spring For All Lowers A high-wear item that needs to be changed when light firing pin strikes develop on your USC or UMP firearm. Compatible With:  HK UMP models 45, .40, & 9mm. USC .45 and other conversion...
    HKP-01898
    $13.95
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  • Out Of Stock
    New - H&K 21 (7.62x51/.308) Carry Handle Axle Elbow Spring - HKP-00578

    HK21 Carry Handle Axle Elbow Spring

    HKP HK Parts

    $11.95
    HK21 & 21E Carry Handle Axle Elbow Spring This part is needed and is used in conjunction with the actual carry handle, axle, axle spring, and (2) E-clips. This is the elbow spring portion of the needed part for the assembly.
    HKP-00578
    $11.95
    Out Of Stock
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    $11.95
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  • New - HK Carry Handle Axle - HKP-00577
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    HK21 Carry Handle Axle

    HKP HK Parts

    $16.95
    HK Carry Handle Axle
    HKP-00577
    $16.95
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  • HK91, G3 Firing Pin - Titanium HK91, G3 Firing Pin - Titanium
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    HK91, G3 Firing Pin - Titanium

    HKP HK Parts

    $34.95
    HK G3, 91 & PTR Firing Pin - Titanium Grade 6 weapons grade Titanium manufacture. Made 100% in the USA A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK G3, 91 & PTR weapon system. Get the...
    HKP-17937
    $34.95
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