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 VP9, HK VP40 Half Shell Spring Washer - Black - HKP-16832 HK VP9, VP40 Spring Bushing - Washer
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    HK VP9, VP40 Spring Bushing - Washer

    H&K Heckler & Koch

    $9.95
    H&K HK VP9, HK VP40 Half Shell Spring Washer 2 units needed for complete set. Brand new factory German HK. This item is the item that cradles the firing pin and is covered by the firing pin sleeve and spring assembly. Compatible With: HK VP9 HK...
    HKP-16832
    $9.95
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    $9.95
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  • New - HKP HK VP9/VP9SK, HK VP40 Windowed Slide Plate - HKP-17676-M HK VP9, VP9SK, VP40 Windowed Slide Plate
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    HK VP9, VP9SK, VP40 Windowed Slide Plate

    HKP HK Parts

    $29.95
    HKP HK VP9/VP9SK, HK VP40 Windowed Slide Plate A direct replacement for the cheap plastic slide plate that comes stock with your HK VP9, VP40. A great way to dress up and enhance your HK VP9, VP40 pistol. Made from CNC'ed aircraft grade aluminum, hard...
    HKP-17676-M
    $29.95
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  • New - H&K 10 Round HK USP/Mark 23 .45 ACP, P30 .40 S&W Magazine Spring - HKP-01675 HK USP, Mark 23 .45 ACP, P30 .40 S&W Magazine Spring - HK 10 Round
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    HK USP, Mark 23 .45 ACP, P30 .40 S&W Magazine Spring - HK 10 Round

    H&K Heckler & Koch

    $6.95
    10 Round HK USP/Mark 23 .45 ACP, P30 .40 S&W Magazine Spring  A must-have spare part, as magazine springs are prone to wear and tear. Compatible With: HK USP .45 10 round HK USP .45 Tactical 10 round HK Mark 23 10 round HK 9mm & 40 cal P30...
    HKP-01675
    $6.95
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    $6.95
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  • New - H&K HK MR556/416 Ejection Port Cover - Black - HKP-15229 HK416, MR556 Ejection Port Cover
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    HK416, MR556 Ejection Port Cover

    H&K Heckler & Koch

    $55.95
    H&K HK MR556/416 Ejection Port Cover HK manufactured newer polymer style cover assembly found on the latest HK 416 & MR556. This item can also be used on other AR15-style projects to enhance the project with the finest ejection port cover...
    HKP-15229
    $55.95
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  • New - H&K -4 Roller For Bolt Head 7.96mm - Under-sized - HKP-00504 Bolt Head Locking Roller - -4, 7.96mm - Under-sized
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    Bolt Head Locking Roller - -4, 7.96mm - Under-sized

    H&K Heckler & Koch

    $27.99
    Heckler and Koch -4 7.96mm Undersized Roller for Bolt Heads  The proper roller size is essential for proper head spacing and bolt gap. New HK German not surplus or used goods. German-made -4 roller, each roller is priced per roller. Compatible...
    HKP-00504
    $27.99
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  • Used - H&K Full Auto Trigger Pack Elbow Spring With Roller - Used - HKP-16241 HK MP5, HK33, HK53, HK93 Elbow Spring With Roller - Full Auto Trigger Pack - Used
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    HK MP5, HK33, HK53, HK93 Elbow Spring With Roller - Full Auto Trigger Pack - Used

    H&K Heckler & Koch

    $4.95
    H&K Full Auto Trigger Pack Elbow Spring With Roller - USED Used- Good shape. This item is a factory HK German replacement part.
    HKP-16241
    $4.95
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    $4.95
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  • New - HKP HK MP5 Extended Magazine Release - EMR - Streamline - HKP-22175-M HK MP5 Magazine Release - Extended Streamline - EMR
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    HK MP5 Magazine Release - Extended Streamline - EMR

    HKP HK Parts

    $44.95
    HKP HK Parts Extended Magazine Release - EMR - Streamline for HK MP5   Elevate your paddle style mag release with the streamlined extended mag release. Crafted from a solid billet of aircraft-grade aluminum and featuring a hard anodized finish,...
    HKP-22175-M
    $44.95
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  • Out Of Stock
    New - H&K MP5SD Sealing Ring - HKP-00142

    HK MP5SD Sealing Ring

    H&K Heckler & Koch

    $29.95
    Heckler and Koch Sealing Ring for HK MP5SD Each HK MP5SD sealing ring is the sealing gasket that seals the SD suppressor against the trunnion on factory HK MP5SD's or factory correct SD conversions. This is a typical wear item as they do degrade and...
    HKP-00142
    $29.95
    Out Of Stock
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    $29.95
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  • On Sale
    HK MP5, HK94, SP5K Magazine Floorplate - 9mm - US - BLEMISHED HK MP5, HK94, SP5K Magazine Floorplate - 9mm - US - BLEMISHED
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    HK MP5, HK94, SP5K Magazine Floorplate - 9mm - US - BLEMISHED

    USA

    Now: $5.95
    Was: $9.95
    MP5 & MP5K 9mm Magazine Floor Plate - BLEMISHED VARYING CONDITION - SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART PRICE IS PER MAGAZINE Floorplate - SOLD...
    HKP-17507-B
    Now: $5.95
    Was: $9.95
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    Now: $5.95
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  • New - H&K HK MR556/MR762/416/417 Buffer Retaining Pin - HKP-02544
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    HK416, MR556, HK417, MR762 Buffer Retaining Pin

    H&K Heckler & Koch

    $15.95
    Heckler and Koch HK MR556, HK MR762, 416/417 Buffer Retaining Pin New HK German proprietary HK designed buffer pin unique to the HK 416 and MR 556 series.  Compatible With: HK416, MR556 HK MR762 HK M27
    HKP-02544
    $15.95
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  • New - H&K HK P Series Cocking Piece LEM - HKP-01769 HK P Series Cocking Piece LEM
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    HK P Series Cocking Piece LEM

    H&K Heckler & Koch

    $69.95
    HK P Series Cocking Piece LEM Compatible With: HK P30 HK P30L HK P30SK HK P2000 HK P2000SK
    HKP-01769
    $69.95
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  • New - H&K HK SL8, HK G36 Extended Mag Release - HKP-17720 HK SL8, G36 Magazine Release - Extended
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    HK SL8, G36 Magazine Release - Extended

    H&K Heckler & Koch

    $19.95
    Heckler and Koch Oversized Extended Magazine Release for HK SL8 and HK G36 New HK German HK SL8, HK G36, HK243 extended mag release. A must have upgrade for your HK SL8, SL8 to G36 conversion or G36 firearm. The HK extended magazine release is a...
    HKP-17720
    $19.95
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    $19.95
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