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 - HK UMP .45 Magazine Locking Plate - HKP-20136 HK UMP Magazine Locking Plate - .45 ACP - US
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    HK UMP Magazine Locking Plate - .45 ACP - US

    USA

    $6.95
    HK UMP .45 Magazine Locking Plate   Made in the USA
    HKP-20136
    $6.95
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    $6.95
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  • New - H&K HK USP .45 ACP Extractor - HKP-01275 HK USP .45 ACP Extractor
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    HK USP .45 ACP Extractor

    H&K Heckler & Koch

    $49.95
    HK German Extractor for USP 45 & USP Tactical .45 Full Size Pistol Compatible With: USP 45 USP 45 Tactical USP 45 Expert, Elite
    HKP-01275
    $49.95
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  • New - H&K HK USP .45 ACP Buffer Spring Retainer Roll Pin - HKP-02267
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    HK USP Retainer Roll Pin, Buffer Spring - .45 ACP

    H&K Heckler & Koch

    $7.95
    HK USP .45 ACP Buffer Spring Retainer Roll Pin  
    HKP-02267
    $7.95
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  • Out Of Stock
    New - H&K HK USPC LEM Firing Pin Block Spring - HKP-16421

    HK USP Compact LEM Block Spring - Firing Pin

    H&K Heckler & Koch

    $8.95
    H&K HK USPC LEM Firing Pin Block Spring   Compatible With: HK USP Compact 9mm - LEM HK USP Compact 40 - LEM HK USP Compact 45 ACP - LEM
    HKP-16421
    $8.95
    Out Of Stock
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    $8.95
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  • New - HKP HK 91/G3 Extractor - Enhanced Coated Polish - HKP-22182-M HK91, G3 Extractor - Enhanced Coated Polish
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    HK91, G3 Extractor - Enhanced Coated Polish

    HKP HK Parts

    $24.95
    HKP HK 91/G3 Extractor - Enhanced Coated Polish  Built for dependable performance, this polished and coated extractor delivers smooth cycling and consistent extraction. A great choice for both upgrades and routine replacements. Compatible With: HK...
    HKP-22182-M
    $24.95
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    $24.95
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  • New - H&K MR556 A4 Hammer Spring - HKP-22083
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    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
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    $5.95
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  • New - HK 416, MR556 Roll Pin for Charging Handle - HKP - HKP-16536
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    HK416, MR556 Charging Handle Roll Pin

    $7.95
    HK 416, MR556 Roll Pin for Charging Handle - HKP This is the shorter one that is used on the inside of the charging handle. There are two of these pins used per charging handle.
    HKP-16536
    $7.95
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  • New - HKP HK VP9/VP9SK/VP40 Firing Pin Striker - HKP-20464 HK VP9, VP9SK, VP40 Firing Pin Striker
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    HK VP9, VP9SK, VP40 Firing Pin Striker

    HKP HK Parts

    $39.95
    HKP HK VP9/VP9SK/VP40 Firing Pin Striker This firing pin fits all models of VP series pistols. Compatible With: HK VP9, VP9 tactical, VP9L, VP9 OR HK VP9SK VP40, VP40 tactical
    HKP-20464
    $39.95
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  • New - HK45 .45 ACP Thread Protector - Threaded .578x28 RH - HKP-19891 HK45 Thread Protector - Threaded .578x28 RH
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    HK45 Thread Protector - Threaded .578x28 RH

    USA

    $24.95
    HK45 .45 ACP Thread Protector - Threaded .578x28 RH Made in the USA, HK45 .45 ACP thread protector, for full size & compact barrels with a 578x28 RH. Made from stainless steel with a nitride finished. Specifications: Made in the USA Stainless...
    HKP-19891
    $24.95
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  • New - H&K VP9, VP40 Grip Panel Right Side - Medium - Gray - HKP-18175 HK VP9, VP40 Grip Panel Right Side - Medium - Gray
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    HK VP9, VP40 Grip Panel Right Side - Medium - Gray

    H&K Heckler & Koch

    $16.95
    H&K VP9, VP40 Grip Panel Right Side - Medium - Gray New HK German manufactured. Right side, medium size. Perfect for spare or for custom stippling projects. Drop-in part for your HK VP pistol. Compatible With: HK VP9 HK VP9A1 F, VP9A1 K HK VP40
    HKP-18175
    $16.95
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  • New - H&K HK MR762/HK417 Cam Pin - HKP-16844
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    HK417, MR762 Cam Pin

    H&K Heckler & Koch

    $64.95
    H&K HK MR762/HK417 Cam Pin   Compatible With: HK MR762 HK 417
    HKP-16844
    $64.95
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  • On Sale
    New - HKP .40 S&W Thread Protector - Threaded 14.5x1 LH - Titanium - HKP-17961 Thread Protector - .40 S&W - 14.5x1 LH - Titanium
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    Thread Protector - .40 S&W - 14.5x1 LH - Titanium

    HKP HK Parts

    Now: $13.95
    Was: $24.95
    HKP HK .40 S&W Thread Protector - Threaded 14.5x1 LH - Titanium Titanium .40 S&W tactical barrel thread protector cap.  Each thread protector has a built in O-ring to allow the best fit possible to prevent the thread protector from coming...
    HKP-17961
    Now: $13.95
    Was: $24.95
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    Now: $13.95
    Was: $24.95
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