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/MR762/416 Clamping Sleeve Safety Lever - HKP-15252
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    HK416, MR556, MR762 Clamping Sleeve Safety Lever

    H&K Heckler & Koch

    $7.95
    H&K HK MR556/MR762/416 Clamping Sleeve Safety Lever There are one of the same pin on both sides. Compatible with: HK MR556 HK 416 HK MR762
    HKP-15252
    $7.95
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  • New - H&K G36/SL8 (5.56/.223)Forearm, Lower, Magwell - Push Pin - HKP-00804
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    HK G36, SL8 Locking Push Pin for Handguards, Lowers, Magwells - Heckler and Koch

    H&K Heckler & Koch

    $48.95
    New HK German G36 & HK SL8 Push Pin For Forearm, Mag Well Or Lower Each push pin is a factory German part and is new. This is also required for those doing the SL8 to G36 style conversions. A factory German G36 uses three of these factory push pins...
    HKP-00804
    $48.95
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  • New - H&K HK P7 Series Extractor Spring - HKP-00325
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    HK P7 Series Extractor Spring

    H&K Heckler & Koch

    $7.95
    HK P7 Extractor Spring This is a common wear and replacement part, according to HK Germany. This is a great part to have on hand as a spare.  Compatible With: P7 PSP P7 M8 P7 M10 P7 M13
    HKP-00325
    $7.95
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  • New - H&K G3 Crush Washer For Buffer Screw - HKP-16984
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    HK G3 Buffer Screw Crush Washer

    H&K Heckler & Koch

    $0.95
    HK G3 Crush Washer For Buffer Screw
    HKP-16984
    $0.95
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  • New - Choate HK 91/G3 (7.62x51/.308) Folding Stock Replacement Buffer - HKP-00211
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    HK91, G3 Buffer - Folding Stock - Replacement

    Choate

    $3.95
    Choate HK 91 & G3 (7.62x51/.308) Folding Stock Replacement Buffer Choate .308 folding stock replacement buffer for all HK91/G3 PTR stocks. A great item to have on hand as these do wear and are prone to breaking. Compatible With: HK 91/G3
    HKP-00211
    $3.95
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    $3.95
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  • New - H&K G3 Buffer Screw Locking Washer - HKP-16983
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    HK G3 Buffer Screw Locking Washer

    H&K Heckler & Koch

    $0.95
    HK G3 Buffer Screw Locking Washer Used in good, working conditon.
    HKP-16983
    $0.95
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  • Used - H&K HK G3, HK 91, PTR, HK 93, HK 53, HK 33 Anti-Rattle Mag Release - Black - Surplus - HKP-17855 HK91, G3 Magazine Release - Anti-Rattle - Surplus
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    HK91, G3 Magazine Release - Anti-Rattle - Surplus

    H&K Heckler & Koch

    $24.95
    Heckler and Koch Anti-Rattle Mag Release from Surplus for HK G3, HK91, PTR, HK33, HK53, HK93 Pulled from demilled German HK firearms. Once refinished this item can be made to look like new. For install on all HK Rifles caliber .223 and .308. This is the...
    HKP-17855
    $24.95
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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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  • New - HKP HK USPC Red Dot Pistol Mount - Black - HKP-18899 HK USP Compact Burris FastFire red dot optic mounting plate
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    HK USP Compact Optic Plate - Burris FastFire - Red Dot Pistol Mount

    HKP HK Parts

    $49.95
    HKP HK USPC Red Dot Pistol Mount Red Dot mounting plate to allow the use of a Burris Fast Fire, Docter, Vortex Venom or other similar specs Red Dot Sights. Replaces rear sight to allow the mounting of a Red Dot Sight to your HK pistol listed above...
    HKP-18899
    $49.95
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  • New - Handguard Rail System Screw - HK416 - HKP-02680 HK416, MR556, HK417, MR762 Handguard Locking Screw - X Style
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    HK416, MR556, HK417, MR762 Handguard Locking Screw - X Style

    H&K Heckler & Koch

    $29.95
    Heckler and Koch Handguard Locking Screw for your HK416, MR556, HK417, MR762 Replacement handguard locking screw that secures the handguard to the upper receiver. This version features the "X" allowing the bolt head or HK sling hood tool to be used for...
    HKP-02680
    $29.95
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  • New - H&K Heavy Trigger Return Spring For HK P30/P30L - HKP-02195
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    HK P30, P30L Trigger Return Spring - Heavy

    H&K Heckler & Koch

    $13.95
    H&K Heavy Trigger Return Spring For HK P30/P30L Compatible With: HK P30 HK P30 V3 HK P30L HK P30L V3
    HKP-02195
    $13.95
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  • New - H&K MR556/MR762/416/G36 (5.56/.223) & (7.62x51/.308) Extractor Spring - HKP-00288
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    HK416, MR556, MR762, G36 Extractor Spring

    H&K Heckler & Koch

    $8.95
    H&K MR556/MR762/416/G36 (5.56/.223) & (7.62x51/.308) Extractor Spring   A must-have replacement wear part and a great item to have on hand. Compatible With: HK G36 HK G36K HK G36C HK SL8 HK MR556 HK 416 HK MR762
    HKP-00288
    $8.95
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    $8.95
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