Parts

Parts

At HK Parts, we offer a wide range of high-quality Heckler and Koch accessories and components for your favorite firearms. Whether you are upgrading a Heckler and Koch pistol or rifle, or building with parts kits, we have you covered. Explore top-rated components for VP9, USP, P30, MP5, MP5K, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, find the parts you need to enhance performance, reliability, and function.

Popular upgrades include match triggers, threaded barrels, compensators, optic plates, and extended magazines. Rifle owners often add enhanced stocks, forearms, and ambidextrous controls.
MP5 and MP5K kits are top sellers, giving shooters authentic components for iconic builds. G36 and HK416 kits are also highly sought after by collectors and professionals alike.
HKP offers the world’s largest H&K-focused catalog, with better availability, faster fulfillment, and expert support compared to general retailers.

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  • Out Of Stock
    HK33, HK53, HK93 Magazine - 25 Round - LEO Marked - RARE HK33, HK53, HK93 Magazine - 25 Round - LEO Marked - RARE
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    HK33, HK53, HK93 Magazine - 25 Round - LEO Marked - RARE

    H&K Heckler & Koch

    $389.95
    Heckler and Koch HK33, HK53, HK93 Magazine - 25 Round - LEO Marked - RARE ONLY 1 UNIT AVAILABLE Factory-original HK steel magazine
    HKP-99382
    $389.95
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  • On Sale
    HK MP5 Sling Swivel Circlip HK MP5 Sling Swivel Circlip
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    HK MP5 Sling Swivel Circlip

    H&K Heckler & Koch

    Now: $3.71
    Was: $7.95
    Heckler and Koch Sling Swivel Circlip for HK MP5 Genuine Heckler and Koch sling swivel circlip designed for HK MP5 pattern firearms. This circlip secures the sling swivel assembly to the firearm and...
    HKP-99368
    Now: $3.71
    Was: $7.95
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  • Out Of Stock
    On Sale
    HK33 Cocking Tube with Hanger - 11" - Right Hand HK33 Cocking Tube with Hanger - 11" - Right Hand
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    HK33 Cocking Tube with Hanger - 11" - Right Hand

    HKP HK Parts

    Now: $82.46
    Was: $149.95
    HKP HK33 11" Cocking Tube with Hanger - UNFINISHED   ONLY 1 UNIT AVAILABLE This right-hand coc
    HKP-99365
    Now: $82.46
    Was: $149.95
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    Was: $149.95
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  • HK P7 M8, P7 M13 Maintenance Manual - RARE HK P7 M8, P7 M13 Maintenance Manual - RARE
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    HK P7 M8, P7 M13 Maintenance Manual - RARE

    H&K Heckler & Koch

    $489.95
    Heckler and Koch Maintenance and Repair Manual for HK P7 M8, P7 M13 Pistols - RARE Original Heckler and Koch maintenance manual covering the P7 M8 and P7 M13 pistols. This factory-issued manual...
    HKP-99362
    $489.95
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  • Out Of Stock
    HK21, HK23, HK11 Flash Hider - Threaded 15x1 RH HK21, HK23, HK11 Flash Hider - Threaded 15x1 RH
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    HK21, HK23, HK11 Flash Hider - Threaded 15x1 RH

    HKP HK Parts

    $27.95
    HKP HK23, HK21, HK11 Flash Hider - Threaded 15x1 RH Steel flash hider designed for HK23, HK21, and HK11 pattern firearms and is threaded 15x1 right hand. Helps reduce visible muzzle flash while...
    HKP-22484
    $27.95
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    $27.95
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  • Out Of Stock
    HK EFL 19mm Flare Gun with 10 Flares - RARE HK EFL 19mm Flare Gun with 10 Flares - RARE
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    HK EFL 19mm Flare Gun with 10 Flares - RARE

    H&K Heckler & Koch

    $994.95
    Heckler and Koch HK EFL 19mm Emergency Flare Launcher / Flare Gun Genuine German-made HK EFL (Emergency Flare Launcher) in 19mm, offered as a set with magazine, flares, and original box. A rare HK...
    HKP-99346
    $994.95
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  • HK VP9F Compensator Replacement Rail Set - MOD 1 HK VP9F Compensator Replacement Rail Set - MOD 1
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    HK VP9F Compensator Replacement Rail Set - MOD 1

    HKP HK Parts

    $28.95
    HKP HK VP9F MOD 1 Compensator Replacement Rail Set Replacement Picatinny rail and smooth plate inserts with hardware for the MOD 1 compensator.  Compatible With: VP9F
    HKP-22432
    $28.95
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    $28.95
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  • On Sale
    HK416, MR556 Handguard - 12.5" - M-LOK - FDE HK416, MR556 Handguard - 12.5" - M-LOK - FDE
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    HK416, MR556 Handguard - 12.5" - M-LOK - FDE

    H&K Heckler & Koch

    Now: $386.95
    Was: $429.95
    H&K HK MR556/HK416 12.5" M-LOK Compatible Handguard Manufactured by HK from aircraft grade aluminum with a hard coat anodized finish, this M-LOK handguard is designed for the Heckler & Koch MR556 &...
    HKP-99323
    Now: $386.95
    Was: $429.95
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    Now: $386.95
    Was: $429.95
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  • On Sale
    Argentinian Slide Colt Sistema 1927 - (M1911) - BLEMISHED Argentinian Slide Colt Sistema 1927 - (M1911) - BLEMISHED
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    Argentinian Slide Colt Sistema 1927 - (M1911) - BLEMISHED

    Now: $108.71
    Was: $349.95
    Argentinian Slide Colt Sistema 1927 - (M1911) - BLEMISHED ONLY 1 UNIT AVAILABLE - AS PICTURED CRACKED
    HKP-19778-B
    Now: $108.71
    Was: $349.95
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    Was: $349.95
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  • On Sale
    Strike Industries HK 416/MR556 Cloak Flash Hider Strike Industries HKP-22260 Strike Industries HK 416/MR556 Cloak Flash Hider Strike Industries HKP-22260
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    HK416, MR556 Flash Hider - Cloak - Threaded 1/2x28

    Strike Industries

    Now: $28.66
    Was: $44.95
    Strike Industries HK416/MR556 Cloak Flash Hider - 1/2x28 Strike Industries Cloak flash hider offers a compact, efficient design that disperses gas flow to minimize visible flash, especially in low...
    HKP-22260
    Now: $28.66
    Was: $44.95
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  • HK MP5K, SP89 Trigger Group with AC Unity Grip and Match Trigger HK MP5K, SP89 Trigger Group with AC Unity Grip and Match Trigger
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    HK MP5K, SP89 Trigger Group with AC Unity Grip and Match Trigger

    HKP HK Parts

    $644.85
    HKP HK MP5K/SP89 Trigger Group with AC Unity Grip & Match Trigger The MP5K match trigger group combined with the AC Unity grip is a great choice for anyone seeking a tactical and aesthetically...
    HKP-22254
    $644.85
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    $644.85
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  • On Sale
    New - SIG Sauer / Phase 5 Hex Buffer Tube for AR-15 Pistols - BLEMISHED - HKP-99304 SIG Sauer / Phase 5 Hex Buffer Tube for AR-15 Pistols - BLEMISHED Sig Sauer / Phase 5 HKP-99304
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    AR15 Buffer Tube - Hex - 7.5" - BLEMISHED

    Sig Sauer

    Now: $14.96
    Was: $44.95
    SIG Sauer Phase 5 Hex Buffer Tube for AR-15 Pistols - BLEMISHED ONLY 1 UNIT AVAILABLE - AS PICTURED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS I
    HKP-99304
    Now: $14.96
    Was: $44.95
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    Now: $14.96
    Was: $44.95
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