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 HK VP9 Ultra Match Trigger Return Spring - HKP-21164 HK  VP9 Return Spring for Ultra Match Trigger
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    HK VP9 Return Spring for Ultra Match Trigger

    HKP HK Parts

    $9.95
    HKP HK VP9 Ultra Match Trigger Return Spring Ultra Match trigger return spring will give your VP9 and VP40 an even smoother, crisper, and lighter pull. This helps promote consistent match-grade accuracy and control by dropping the trigger pull...
    $9.95
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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
    $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
    $0.95
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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.
    $0.95
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  • New - H&K 93/53/33 (5.56/.223) Firing Pin Spring - HKP-00193
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    HK33, HK53, HK93 Firing Pin Spring

    H&K Heckler & Koch

    $9.95
    New HK German 93, 33, & 53 .223/5.56 Firing Pin Spring. A must-have spare part as this is a high wear and replacement item.  Compatible With: HK93, 33, 53   V93/V53, C93, C53 Custom builds and clones
    $9.95
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  • New - H&K MP5, 94 Cocking Tube Support Spring - HKP-01104
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    HK MP5, HK94 Cocking Tube Support Spring

    H&K Heckler & Koch

    $6.95
    Heckler and Koch HK MP5, HK94 Cocking Tube Support Spring   A great spare to have on hand as this part can become worn and be lost. The cocking tube support spring applies pressure to the cocking tube detent to enable the detent to lock into...
    $6.95
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  • Used - H&K 91/G3 (7.62x51/.308) Firing Pin - Used - HKP-16710
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    HK91, G3 Firing Pin - Used

    H&K Heckler & Koch

    $6.95
    H&K 91/G3 (7.62x51/.308) Firing Pin - Used Great for spares as this is a common wear item. Compatible With: HK G3 & HK 91, PTR or clone rifles
    $6.95
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  • New - H&K HK P30 Series Right Slide Release Shorty - Black - HKP-02487 HK P30 Series Right Slide Release Shorty
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    HK P30 Series Right Slide Release Shorty

    H&K Heckler & Koch

    $32.95
    HK P30 Series Right Slide Release Shorty This is a shorter version slide release for the HK, P30, P30L, P30S, P30SK, and P30SKS "Safety" version models. The short models are standard on the P30S and P30SKS models.
    $32.95
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  • Out Of Stock
    New - HK MR556/MR762/416/HK417 Buffer Retainer Spring - HKP-20036

    HK416, MR556, HK417, MR762 Buffer Retainer Spring

    USA

    $5.95
    HK MR556/MR762/416/HK417 Buffer Retainer Spring This item is the spring for the buffer retainer that is held in the rear of the lower receiver. Compatible With: HK MR556 HK 416 HK MR762 HK 417
    $5.95
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  • Out Of Stock
    New - H&K Heavy 8.5 lbs Trigger Return Spring - HKP-02265

    HK Trigger Return Spring - Heavy 8.5 lbs

    H&K Heckler & Koch

    $11.95
    H&K Heavy 8.5 lbs Trigger Return Spring Also known as the heavy LEM trigger spring for the LEM and TGS conversions. Compatible With: HK USP Full Size 9mm, .40 & .45 HK USP Compact 9mm, .40 & .45 HK Tactical, Elite & Expert All...
    $11.95
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  • Out Of Stock
    New - Handguard Rail System Screw - HK416 - HKP-02680 HK416, MR556, HK417, MR762 Handguard Locking Screw - X Style

    HK416, MR556, HK417, MR762 Handguard Locking Screw - X Style

    H&K Heckler & Koch

    $25.95
    HK416, MR556, HK417, MR762 - Handguard Locking Screw 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 installation or removal...
    $25.95
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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
    $8.95
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