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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  • On Sale
    New - HKP HK VP9/VP9SK/VP40 Replacement Hex Button ONLY - Gold - BLEMISHED - HKP-18111-GD-B HK VP9, VP9SK, VP40 Replacement Hex Button ONLY - Gold - BLEMISHED
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    HK VP9, VP9SK, VP40 Replacement Hex Button ONLY - Gold - BLEMISHED

    HKP HK Parts

    Now: $13.95
    Was: $24.95
    HKP HK VP9/VP9SK/VP40 Replacement Hex Button ONLY - Gold - BLEMISHED   ONLY REPLACEMENT HEX BUTTON. DOES NOT INCLUDE SLIDE PLATE. CONDITION MAY VARY.   COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE...
    HKP-18111-GD-B
    Now: $13.95
    Was: $24.95
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    Now: $13.95
    Was: $24.95
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  • New - H&K MP7 Lock Washer - HKP-21978
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    HK MP7 Lock Washer

    H&K Heckler & Koch

    $4.95
    H&K MP7 Lock Washer Factory lock washer for the MP7 platform.  Specifications: Inside diameter: 4.10mm Outside diameter: 7.75mm Compatible With: HK MP7  
    HKP-21978
    $4.95
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    $4.95
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  • HK MR762 A4 Hammer HK MR762 A4 Hammer
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    HK MR762 A4 Hammer

    H&K Heckler & Koch

    $40.95
    Heckler and Koch Hammer for HK MR762 A4 Rifles Factory-original German steel hammer for the MR762 A4. Designed as a direct replacement for worn or damaged hammers in MR762 A4 trigger assemblies. Compatible With: HK MR762 A4
    HKP-21968
    $40.95
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    $40.95
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  • On Sale
    New - H&K HK P7 Series Magazine Follower Insert - BLEMISHED - HKP-02365-B HK P7 Series Magazine Follower Insert - BLEMISHED
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    HK P7 Series Magazine Follower Insert - BLEMISHED

    H&K Heckler & Koch

    Now: $9.95
    Was: $29.95
    H&K HK P7 Series Magazine Follower Insert - BLEMISHED ONLY 1 UNIT AVAILABLE COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Firing Pin Return Spring or...
    HKP-02365-B
    Now: $9.95
    Was: $29.95
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    Now: $9.95
    Was: $29.95
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  • Out Of Stock
    New - B&T Recoil Buffer Pin - 3x12 - HKP-21762 B&T Recoil Buffer Pin - 3x12

    B&T Recoil Buffer Pin - 3x12

    B&T Brugger & Thomet

    $1.95
    B&T Recoil Buffer Pin - 3x12 B&T factory recoil buffer pin for folding and telescopic stocks.
    HKP-21762
    $1.95
    Out Of Stock
    Qty in Cart: 0
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    $1.95
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  • On Sale
    Used - H&K HK P7M10 .40 S&W Magazine Follower Insert - USED - BLEMISHED - HKP-01364-B
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    HK P7M10 Magazine Follower Insert - .40 S&W - USED - BLEMISHED

    H&K Heckler & Koch

    Now: $19.95
    Was: $34.95
    H&K HK P7M10 .40 S&W Magazine Follower Insert - USED - BLEMISHED USED. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL.
    HKP-01364-B
    Now: $19.95
    Was: $34.95
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    Now: $19.95
    Was: $34.95
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  • Out Of Stock
    New - H&K HK G36, HK SL8 Lower Axle Pin - HKP-00291

    HK G36, SL8 Lower Axle Pin

    H&K Heckler & Koch

    $0.00
    G36 & HK SL8 Lower Axle Pin The G36/SL8 (all models) uses the same size axle pin for all of the lower components (3 total). Except for the bolt holding open the device axle. Must insert from the right side to the left (per factory instruction).
    HKP-00291
    $0.00
    Out Of Stock
    Qty in Cart: 0
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    $0.00
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  • Out Of Stock
    Used - H&K HK G36 Magazine Catch Release Lever - HKP-19771 HK G36, SL8 Bolt Locking Lever - Complete - USED

    HK G36, SL8 Bolt Locking Lever - Complete - USED

    H&K Heckler & Koch

    $9.95
    H&K HK G36, SL8 Complete Locking Lever: USED   The locking lever is installed within the trigger housing, ensuring reliable and secure bolt lockup. Used in good condition.    Compatible With: H&K SL8, G36 H&K USC, UMP
    HKP-19771
    $9.95
    Out Of Stock
    Qty in Cart: 0
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    $9.95
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  • New - H&K HK MR762 Drop Safety Catch - HKP-16615 HK MR762 Drop Safety Catch
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    HK MR762 Drop Safety Catch

    H&K Heckler & Koch

    $19.95
    H&K HK MR762 Drop Safety Catch Compatible With: HK MR762
    HKP-16615
    $19.95
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    $19.95
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  • New - H&K HK MR762 Hammer Complete - Black - HKP-16614 HK MR762 Hammer Complete
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    HK MR762 Hammer Complete

    H&K Heckler & Koch

    $179.95
    H&K HK MR762 Hammer Complete HK MR762 hammer, hammer spring, & bushing as a complete hammer assembly. Compatible With: HK MR762  
    HKP-16614
    $179.95
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    $179.95
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  • New - H&K 10 Round USP 40 Full Size Magazine Locking Plate - Black - HKP-02361
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    HK USP Full Size Magazine Locking Plate - .40 S&W - 10 Round

    H&K Heckler & Koch

    $9.95
    H&K 10 Round USP 40 Full Size Magazine Locking Plate Compatible With: USP .40 10 Round 
    HKP-02361
    $9.95
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    $9.95
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  • Out Of Stock
    New - H&K HK P9S .45 ACP Magazine Spring - HKP-02045

    HK P9S .45 ACP Magazine Spring

    H&K Heckler & Koch

    $0.00
    HK P9 Magazine Spring
    HKP-02045
    $0.00
    Out Of Stock
    Qty in Cart: 0
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    $0.00
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