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 21E/23E (7.62x51/.308) & (5.56/.223) E Clip For Carry Handle - HKP-00579

    HK21E, HK23E E Clip For Carry Handle - 7.62x51 / .308 - 5.56 / .223

    H&K Heckler & Koch

    $9.95
    HK German "E" Clip For Carry Handle For HK21 & HK23E folding carry handles. Clips are sold individually.
    $9.95
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  • Used - H&K 91/G3 (7.62x51/.308) Magazine Catch - Used - HKP-18693 HK91, G3 Magazine Catch - Used
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    HK91, G3 Magazine Catch - Used

    H&K Heckler & Koch

    $16.95
    G3 Magazine Catch - HK 91, G3, PTR91 -.308/7.62 - USED The highest quality magazine catch available. High quality HK German production units are slightly used HK Parts from Heckler & Koch Germany. These also have the proper cut in them and do not...
    $16.95
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  • Used - H&K A3 Retractable Stock Clamping Lever Spring - HKP-01089
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    HK A3 Buttstock Clamping Lever Spring - Retractable

    H&K Heckler & Koch

    $19.95
    HK German Retractable Stock Clamping Lever Spring For A3 Retractable Stocks This spring is the most common breakage/wear item in the internal workings of the A3 retractable stock.
    $19.95
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  • New - HK G36, HK SL8 Bolt Catch USF - HKP-19122 HK G36, HK SL8 Bolt Catch USF
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    HK G36, HK SL8 Bolt Catch USF

    USA

    $14.95
    HK G36 & SL8 Bolt Catch On AR-15 systems this would be similar to a cam pin. Compatible With: G36, G36K, G36C Sl8 variants
    $14.95
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  • New - H&K VP9, VP40 Grip Panel Right Side - Medium - FDE - HKP-18116 HK VP9, VP40 Grip Panel Right Side - Medium - FDE
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    HK VP9, VP40 Grip Panel Right Side - Medium - FDE

    H&K Heckler & Koch

    $19.95
    H&K VP9, VP40 Grip Panel Right Side - Medium - FDE 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
    $19.95
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  • New - H&K HK 417/MR762 Magazine Catch Retainer Ring - HKP-16521 HK417, MR762 Magazine Catch Retainer Ring
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    HK417, MR762 Magazine Catch Retainer Ring

    H&K Heckler & Koch

    $10.95
    H&K HK 417/MR762 Magazine Catch Retainer Ring   Compatible With: HK 417 HK MR762
    $10.95
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    $10.95
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  • New - H&K HK MP7 Compression Spring - HKP-16782
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    HK MP7 Compression Spring

    H&K Heckler & Koch

    $5.95
    H&K HK MP7 Compression Spring
    $5.95
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    $5.95
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  • New - H&K MR556/MR762 A4 Safety Lever - Left - HKP-21965 HK MR556, MR762 A4 Safety Lever - Left
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    HK MR556, MR762 A4 Safety Lever - Left

    H&K Heckler & Koch

    $12.95
    H&K MR556/MR762 A4 Safety Lever - Left Left-side selector lever for MR-series ambidextrous safety systems. Compatible With: HK MR762 A1/A4 HK MR556 A1/A4
    $12.95
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  • New - HK UMP, USC Right Hammer Spring - HKP-19557
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    HK UMP, USC Hammer Spring - Right - US

    USA

    $9.95
    HK UMP & USC Right Side Hammer Spring For Lowers - USA
    $9.95
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  • New - H&K HK MR762/417/G28 Ejection Cover Axle Spring - HKP-16753
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    HK417, MR762, G28 Ejection Cover Axle Spring

    H&K Heckler & Koch

    $9.95
    H&K HK MR762/417/G28 Ejection Cover Axle Spring New Hk German manufacture for the MR762 & HK 417 firearm. The spring is used on the axle and ejection port cover door to allow it to be closed and spring open. Compatible With: HK MR762 HK 417 HK...
    $9.95
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  • New - HKP HK 45/45 Tactical Titanium Firing Pin - HKP-17811
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    HK 45, 45T Firing Pin - Titanium

    HKP HK Parts

    $49.95
    Firing Pin HK45 & HK45 Tactical - Titanium - Grade 6 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...
    $49.95
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