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 MP5, HK94, MP5K, SP89 & SP5K Firing Pin - HKP-00061
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    HK MP5, HK94 Firing Pin

    H&K Heckler & Koch

    $49.95
    H&K MP5, HK94, MP5K, SP89 & SP5K Firing Pin - German Compatible With: MP5 HK94 MP5K SP89 SP5K 
    HKP-00061
    $49.95
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  • New - H&K HK 17 Round HK VP9 Magazine Locking Plate - HKP-19322 HK VP9 Magazine Locking Plate - 17 Round
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    HK VP9 Magazine Locking Plate - 17 Round

    H&K Heckler & Koch

    $8.95
    Magazine Locking Plate for 17 Round Magazine - HK VP9, P30 New HK German factory part. This is the locking plate for the bottom of the magazine spring on the newer VP9/P30 17 Round magazine.  
    HKP-19322
    $8.95
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  • New - H&K MP5 & HK94 Recoil Rod Assembly - HKP-00132
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    HK MP5, HK94 Recoil Rod Assembly

    H&K Heckler & Koch

    $69.95
    H&K MP5 & HK94 Recoil Rod Assembly  HK German MP5 and HK94 recoil rod assemblies come complete with rod, spring, nylon rings, end caps, and rivets installed. This is a great item to have on hand as a spare part as this is a wear-and-tear...
    HKP-00132
    $69.95
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  • New - HKP Roller +7 - New - 8.07mm - HKP-19442 HK Roller +7 - New - 8.07mm
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    HK Roller +7 - New - 8.07mm

    HKP HK Parts

    $8.99
    Roller +7 - New - 8.07mm HK Parts Standard (8.07 mm) locking roller, The proper roller size is essential for proper bolt gap. US Manufacture. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to...
    HKP-19442
    $8.99
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  • New - H&K HK P30/USPC/45C/P2000 Firing Pin Spring - HKP-01502
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    HK45C, P30, USP Compact Firing Pin Spring

    H&K Heckler & Koch

    $8.95
    HK P30/USPC/45C/P2000 Firing Pin Spring A must have spare replacement part to keep on hand and to swap out during pistol servicing. Compatible With: HK USP Compact 9mm HK USP Compact 40 & .357 HK USP Compact 45 HK P2000 Series HK P2000SK Series HK...
    HKP-01502
    $8.95
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  • New - H&K MP5K/SP89/SP5K 9mm Recoil Rod Assembly - HKP-00386
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    HK MP5K, SP89, SP5K Recoil Rod Assembly

    H&K Heckler & Koch

    $74.95
    HK German MP5K, SP-89, SP5K Recoil Rod Assembly Complete The recoil spring assembly is a great item to have on hand for replacement and spares as this is a consumable wearable part. New factory German HK manufactured and just under 7" in length...
    HKP-00386
    $74.95
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  • Used - H&K 90 Series Hammer Axle For Trigger Pack - HKP-15444
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    HK MP5, HK90 Series Hammer Axle for Trigger Pack

    H&K Heckler & Koch

    $2.77
    H&K 90 Series Hammer Axle For Trigger Pack HK German used hammer axle for the 90 series style of trigger packs. Each axle pin or pivot pin measures .237 inches (6.0mm). A great spare and must have spare part for anyone that owns an HK 90 series of...
    HKP-15444
    $2.77
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  • New - HKP MP5 & MP5K 9mm Magazine Follower & Locking Plate Set - HKP-21573-M HK MP5, MP5K Magazine Follower and Locking Plate Set - 9mm
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    HK MP5, MP5K Magazine Follower and Locking Plate Set - 9mm

    HKP HK Parts

    $12.95
    HKP MP5 & MP5K 9mm Magazine Follower & Locking Plate Set  A drop in item that allows you to swap your follower & locking plate to green or red. Best for a quick empty mag identifier. A great training or range aid at a great price. Made...
    HKP-21573-M
    $12.95
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  • New - HKP SD Barrel Port Brush Handle - HKP-21448-M Black
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    HK MP5SD Barrel Port Brush Handle

    HKP HK Parts

    $39.95
    HKP SD Barrel Port Brush Handle The HK Parts SD brush handle is the perfect tool to pair with your factory H&K or HK Parts barrel brush.  Unlike other brush handles, the HKP handle features a locking clamp allowing the user to rotate the brush...
    HKP-21448-M
    $39.95
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  • New - H&K MP5 A3 Retractable Stock Buffer - HKP-00074
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    HK MP5 A3 Buffer - Stock - Retractable

    H&K Heckler & Koch

    $27.95
    H&K HK MP5 A3 Buffer - Stock - Retractable Stock Buffer These common wear items need to be replaced when they become yellow, brittle, and worn. Inspect your buffer for the following: discoloration, the buffer becomes hard and brittle, tears, cracks,...
    HKP-00074
    $27.95
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  • New - H&K HK VP9/VP9SK, HK VP40 Clamping Sleeve Insert, Ejector Housing - HKP-16805
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    HK VP9, VP9SK, VP40 Clamping Sleeve Insert, Ejector Housing

    H&K Heckler & Koch

    $1.95
    Clamping Sleeve For Insert, Ejector Block Housing For HK VP9, VP40 This is the factory correct roll pin for holding the ejector block housing in the frame. New HK German manufacture. Compatible With: HK VP9 HK VP9SK HK VP40
    HKP-16805
    $1.95
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  • New - H&K Rear Sights Windage Screw - HK 90 Series - HKP-00867
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    HK33, HK53, HK93 Rear Sights Windage Screw

    H&K Heckler & Koch

    $4.95
    H&K Rear Sights Windage Screw - HK 90 Series This is a hard-to-find rear sight screw new from HK Germany - not surplus.
    HKP-00867
    $4.95
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