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 HK MR556/416 Ejector Retaining Pin - HKP-00053
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    HK416, MR556 Ejector Retaining Pin

    H&K Heckler & Koch

    $6.95
    H&K Heckler and Koch's Ejector Retaining Pin for your HK416 and HK MR556 This factory HK German part is the pin that holds the ejector in place on the bolt head. Great to have as a spare part. Compatible With: HK416, MR556
    HKP-00053
    $6.95
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  • New - H&K G36/SL8 (5.56/.223) Complete Firing Pin Retaining Pin - HKP-14050 HK G36, SL8 Firing Pin Retaining Pin, Complete
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    HK G36, SL8 Firing Pin Retaining Pin, Complete

    H&K Heckler & Koch

    $11.95
    Retaining Pin For Firing Pin Complete With O-Ring Compatible With: HK G36 HK SL8
    HKP-14050
    $11.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Bolt Catch Pin - HKP-16517
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    HK UMP, USC Bolt Catch Pin

    H&K Heckler & Koch

    $5.95
    H&K UMP/USC (.40 S&W/.45 ACP/9mm) Bolt Catch Pin
    HKP-16517
    $5.95
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  • Out Of Stock
    New - H&K HK MR556/MR762/416 Fire Control Detent Stop Pin - HKP-15272

    HK416, MR556, MR762 Fire Control Detent Stop Pin

    H&K Heckler & Koch

    $20.95
    H&K HK MR556/MR762/416 Fire Control Detent Stop Pin HK German manufacture. Compatible With: HK MR556 HK416 HK MR762
    HKP-15272
    $20.95
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  • New - H&K HK SL8/G36 Gas Piston Rod Spring Assembly - HKP-02000
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    HK SL8, G36 Piston Rod Assembly

    H&K Heckler & Koch

    $64.95
    Heckler and Koch HK German G36 and HK SL8 Gas Piston Rod Spring Assembly Great for spare parts or to use on that HK SL8-G36 conversion. This is a high-wear item and a must-have spare part. Compatible With: HK SL8-6, SL8-1 HK G36E, G36 full...
    HKP-02000
    $64.95
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  • New - H&K HK 30/P30L/45/45C Hammer Bearing - HKP-01800 HK45, HK45 Compact, P30, P30L Hammer Bearing
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    HK45, HK45 Compact, P30, P30L Hammer Bearing

    H&K Heckler & Koch

    $14.95
    HK 30, P30L, 45, & 45C Hammer Bearing Compatible With: HK P30 HK P30L HK45 HK45 Compact Please Note: This item does not have the lockout device built in for those that prefer NOT to have the lockout feature.
    HKP-01800
    $14.95
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  • 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

    $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
    $31.95
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  • New - H&K HK USP Left Side V1/5/9 Decocking Lever - HKP-01169 HK USP Decocking Lever - Left Side V1/5/9
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    HK USP Decocking Lever - Left Side V1/5/9

    H&K Heckler & Koch

    $59.99
    H&K HK USP Left Side V1/5/9 Decocking Lever A Heckler and Koch genuine part. This item allows a right-handed shooter to have the safety and or decocking functions on the LEFT side of the firearm. This is to be used in conjunction with the correct...
    HKP-01169
    $59.99
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  • New - H&K UMP (.40 S&W/.45 ACP/9mm) Lower Release Lever For Hammer - HKP-01890 HK UMP Release Lever
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    HK UMP Release Lever

    H&K Heckler & Koch

    $9.95
    HK UMP Catch Release Lever Or Trip Lever For All UMP Lowers  
    HKP-01890
    $9.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Cocking Lever Support Tube - HKP-01883 HK UMP, USC Cocking Lever Support Tube
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    HK UMP, USC Cocking Lever Support Tube

    H&K Heckler & Koch

    $19.95
    HK UMP & USC Cocking Lever Support Tube  
    HKP-01883
    $19.95
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  • New - PTR Tactical Handguard Rail Screw - HKP-16744
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    Handguard Rail Screw - Tactical

    PTR

    $0.69
    PTR Tactical Handguard Rail Screw The 6, 4, 3 & 2 inch rail sections use these screws to attach themselves to the tactical forearm. This is the screw that is used on all the tactical forearm rails (2 inch, 3 inch, 4 inch, 6 inch). A great spare to...
    HKP-16744
    $0.69
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  • New - H&K HK P7 Series Slide Removal Button Spring - HKP-01314
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    HK P7 Series Button Spring - Slide Removal

    H&K Heckler & Koch

    $7.95
    HK P7 Series Slide Removal Button Spring   This item is no longer in production. Get it while it's still available. Compatible With: PSP P7M8 P7M10 P7M13
    HKP-01314
    $7.95
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