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 - MP5, MP5K 9mm Contact Piece For Paddle Mag Release - German - HKP-00118 HK MP5, MP5K Paddle Mag Release Contact Piece
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    HK MP5, MP5K Paddle Mag Release Contact Piece

    H&K Heckler & Koch

    $59.95
    Heckler and Koch 9mm Contact Piece for Paddle Mag Release for HK MP5 and HK MP5K - German This is the real deal NOT the .308 or .223 contact piece. Hard to find factory-correct, brand-new, latest production German HK 9mm contact piece. Compatible...
    HKP-00118
    $59.95
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  • New - HKP HK CC9 IWB Clip - Minimalist - HKP-22095 HK CC9 IWB Clip - Minimalist
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    HK CC9 IWB Clip - Minimalist

    HKP HK Parts

    $59.95
    HKP HK CC9 IWB Clip - Minimalist The HKP HK CC9 IWB clip offers a minimalist solution for absolute concealment. When a holster creates undesired printing, our IWB eliminates the bulk to keep the pistol safe from discovery.  Our IWB clip fits snug...
    HKP-22095
    $59.95
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  • New - H&K HK SL8, HK G36 Magazine Release Spring - HKP-16344
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    HK SL8, G36 Magazine Release Spring

    H&K Heckler & Koch

    $9.95
    Heckler and Koch Magazine Release Spring for HK G36 and HK SL8 A must have spare part. Compatible With: G36 SL8
    HKP-16344
    $9.95
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  • New - HK G36/UMP Folding Stock Release Spring - HKP-00637
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    HK G36, UMP Folding Stock Release Spring

    H&K Heckler & Koch

    $9.95
    HK G36 Folding Stock Release Spring This is the spring that fits under the stock release button to activate the folding and retention of the G36 or UMP stock. Compatible With: HK G36 HK G36K HK G36C UMP
    HKP-00637
    $9.95
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  • New - H&K HK P2000/USPC New Style Firing Pin - HKP-01563
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    HK P2000, USP Compact Firing Pin - New Style

    H&K Heckler & Koch

    $74.95
    HK P2000/USPC New Style Firing Pin Compatible With: HK USP Compact 9mm HK USP Compact 40 S&W HK USP Compact 357 SIG HK USP Compact LEM HK P2000 9mm HK P2000 40 S&W HK P2000 357 SIG HK P2000SK 9mm HK P2000SK 40 S&W HK P2000SK 357 SIG
    HKP-01563
    $74.95
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  • New - H&K HK P2000/P30/USP Heavy Firing Pin Block Spring - HKP-01603
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    HK P30, P2000, USP Block Spring - Heavy Firing Pin

    H&K Heckler & Koch

    $5.95
    HK P2000 & P30 Heavy Firing Pin Block Spring This is the heavy LEM spring found on the LEM conversion. Compatible With: Any post-2005 production USP & UPSC P2000 P2000SK P30 P30SK Will fit the HK45 & HK45C models
    HKP-01603
    $5.95
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  • New - H&K 30/32 Round HK USP/P30/VP9 Magazine Spring - HKP-16407 HK USP, P30, VP9 Magazine Spring - 30 and 32 Round Mags
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    HK USP, P30, VP9 Magazine Spring - 30 and 32 Round Mags

    H&K Heckler & Koch

    $9.95
    Heckler and Koch 30, 32 Round Magazine Spring for HK USP, HK P30, HK VP9 HK German manufacture new production HK USP 9mm 32 round magazine spring. A super rare and hard to find part for the USP 9mm extended 32 round magazines. This spring took years of...
    HKP-16407
    $9.95
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  • New - H&K UMP (.45 ACP) Magazine Locking Plate - HKP-16338 HK UMP Magazine Locking Plate - .45 ACP
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    HK UMP Magazine Locking Plate - .45 ACP

    H&K Heckler & Koch

    $9.95
    H&K UMP (.45 ACP) Magazine Locking Plate
    HKP-16338
    $9.95
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  • New - H&K HK P30L Complete Recoil Assembly - HKP-02485 HK P30L Recoil Rod Assembly - Complete
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    HK P30L Recoil Rod Assembly - Complete

    H&K Heckler & Koch

    $97.95
    Heckler and Koch Complete Recoil Rod Assembly for HK P30L 9mm Genuine German HK recoil rod assembly for the P30L 9mm. A fresh factory recoil spring restores proper cycling and ensures the pistol functions to original HK specifications. Compatible...
    HKP-02485
    $97.95
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  • New - H&K HK MR556/HK416 FFRS Retaining Spring - HKP-02617
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    HK416, MR556 FFRS Retaining Spring

    H&K Heckler & Koch

    $9.99
    H&K HK MR556/HK416 FFRS Retaining Spring The retainer spring retains the handguard locking pin on the Free Floating Rail System (FFRS). These can become damaged with the removal of the handguard screws. Once the spring is damaged, they have to be...
    HKP-02617
    $9.99
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  • New - PTR Tactical, Keymod & M-LOK, Retainer Handguard Screw - HKP-16743
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    HK MP5, MP5K, HK93, HK91 Handguard Retainer Screw - Tactical, Keymod, and M-LOK

    PTR

    $4.95
    PTR Tactical, Keymod & M-LOK, Retainer Handguard Screw This is the screw that is used on all the Tactical, Keymod, and M-LOK forearms (MP5K, MP5, HK93, HK91). A great spare to have in case the original screw gets lost.
    HKP-16743
    $4.95
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  • New - H&K HK Pistol Trigger Axle - HKP-01806
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    HK Pistol Trigger Axle

    H&K Heckler & Koch

    $9.95
    HK Pistol Trigger Axle Compatible With: HK USP 9mm .40 S&W .45 ACP HK USP Compact 9mm .40 S&W .357 SIG .45 ACP HK P30 HK P30L HK P30SK HK P2000 HK P2000SK HK45 HK45 Compact
    HKP-01806
    $9.95
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