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 - HKP MP5 F & MP5 40,10 Recoil Rod Assembly - HKP-17833 HK MP5, MP5F Recoil Rod Assembly - 9mm / 10mm / .40 S&W / .357 SIG
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    HK MP5, MP5F Recoil Rod Assembly - 9mm / 10mm / .40 S&W / .357 SIG

    HKP HK Parts

    $49.95
    MP5 F, MP5 40/10 Recoil Spring Rod Assembly Complete - Extra Power This is the correct MP5F or MP5 40/10 Recoil Rod assembly with the proper parts and size. Most commonly used for MP5's that are using +P or +P+ ammunition or any high impulse 9mm. Or for...
    HKP-17833
    $49.95
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  • Out Of Stock
    New - HKP Semi Auto Shelf, Hanger Block For Receiver - HKP-17572 HK Semi Auto Shelf, Hanger Block For Receiver

    HK Semi Auto Shelf, Hanger Block For Receiver

    HKP HK Parts

    $13.95
    HK Semi Auto Shelf Weldment, Hanger Block Weldment HK Semi Auto Shelf, Hanger Block to HK's factory specifications for c/p trigger housings. Weld on shelf that is the needed receiver block that welds to the rearward portion of the magwell to allow the...
    HKP-17572
    $13.95
    Out Of Stock
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    $13.95
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  • New - HKP HK VP9/VP9SK, HK VP40 Axle For Trigger Safety Latch - HKP-16778
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    HK VP9, VP9SK, VP40 Trigger Safety Latch Axle

    HKP HK Parts

    $3.95
    Axle For Trigger Safety Latch VP9, VP9SK & VP40 HK German factory part. This pin is the axle pin for the safety latch in the VP trigger. Compatible With: HK VP9 HK VP9 Tactical HK VP40 HK VP40 Tactical HK VP9SK
    HKP-16778
    $3.95
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    $3.95
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  • New - H&K HK 416/417/MR556/MR762 Catch Retainer Spring - Magazine - HKP-16618
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    HK416, HK417, MR556, MR762 Clamping Sleeve

    H&K Heckler & Koch

    $5.95
    H&K HK 416/417/MR556/MR762 Clamping Sleeve Compatible With: HK416 HK417 MR556 MR762
    HKP-16618
    $5.95
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  • New - H&K 93/33 (5.56/.223) - Recoil Spring - HKP-02097
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    HK33, HK53, HK93 Recoil Spring

    H&K Heckler & Koch

    $8.95
    HK German factory HK 93, 33 & 33K Replacement Recoil Spring Compatible With: HK 93 HK33 HK33K Clones or other custom builds
    HKP-02097
    $8.95
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    $8.95
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  • On Sale
    HK MP5, MP5K, AP5 Replacement Kit - Firing Pin and Spring HK MP5, MP5K, AP5 Replacement Kit - Firing Pin and Spring
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    HK MP5, MP5K, AP5 Replacement Kit - Firing Pin and Spring

    MKE

    Now: $16.95
    Was: $19.95
    MKE HK MP5, MP5K, AP5 Steel Firing Pin and Spring Replacement Kit Replacement steel firing pin and spring kit for HK MP5 platforms. Direct-fit parts for repairing or replacing worn firing components in MP5-style bolt assemblies. Includes: Firing...
    HKP-99344
    Now: $16.95
    Was: $19.95
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  • HK Magazine Release - HK45 & P30, P30L, P30SK HK Magazine Release - HK45 & P30, P30L, P30SK
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    HK Magazine Release - HK45 & P30, P30L, P30SK

    H&K Heckler & Koch

    $15.95
    H&K Magazine Release Compatible With: HK45 HK45 Tactical HK P30, P30S, P30L, P30SK Please Note: This part will not fit pistols other than the ones listed above.
    HKP-01809
    $15.95
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  • New - H&K HK VP9 Rubber Extractor Plug - HKP-01849
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    HK VP9 Rubber Extractor Plug

    H&K Heckler & Koch

    $4.95
    HK VP9 Rubber Extractor Plug This part is the rubber buffer found on the inside of the extractor spring to help keep positive tension on the extractor. It's a must-have repair and replacement item.
    HKP-01849
    $4.95
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  • New - H&K HK USPC Complete 9mm Recoil Spring w/ Buffer Assembly - HKP-01158
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    HK USP Compact Recoil Spring with Captive Spring - 9mm

    H&K Heckler & Koch

    $113.95
    HK USP Compact 9mm Recoil Spring With Buffer Assembly Complete Great spare or replacement item to have as a spare. This is the new factory part for all HK USP9C Pistols. 
    HKP-01158
    $113.95
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  • Out Of Stock
    New - H&K H&K HK 45/45C/USP/USPC Control Latch - HKP-01174

    HK45, HK45 Compact, USP, USP Compact Control Latch

    H&K Heckler & Koch

    $16.95
    Control Latch Compatible With: HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact 9mm HK USP Compact .40 S&W HK USP Compact .45 ACP HK45, HK45 Tactical HK45 Compact, HK45C Tactical HK Tactical, Elite & Expert Models
    HKP-01174
    $16.95
    Out Of Stock
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    $16.95
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  • Out Of Stock
    New - H&K HK MR556/MR762/416/417 Forward Assist Plunger Spring - HKP-02537

    HK416, HK417, MR556, MR762 Forward Assist Plunger Spring

    H&K Heckler & Koch

    $5.95
    H&K HK MR556/MR762/416/417 Forward Assist Plunger Spring New HK German manufacture. Compatible With: HK MR556 HK 416 HK MR762 HK 417 HK G28 HK M27
    HKP-02537
    $5.95
    Out Of Stock
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    $5.95
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  • New - HK MP5K, SP5K Rear Push Pin Weldment Set - HKP-19632 HK MP5K, SP5K Rear Push Pin Weldment Set
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    HK MP5K, SP5K Rear Push Pin Weldment Set

    USA

    $14.95
    HK MP5K, SP5K Rear Push Pin Weldment Set This weldment set is the 2 pieces needed for the rear of the flat/receiver that holds the stock/brace or end cap in place. CNC machined from weldable steel and the finest weldment available on the market...
    HKP-19632
    $14.95
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