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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  • New - H&K HK 30/P30L/45/45C Hammer Bearing - HKP-01800 HK45, HK45 Compact, P30, P30L Hammer Bearing
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    HK45, HK45 Compact, P30, P30L Hammer Bearing

    H&K Heckler & Koch

    $14.95
    HK 30, P30L, 45, & 45C Hammer Bearing Compatible With: HK P30 HK P30L HK45 HK45 Compact Please Note: This item does not have the lockout device built in for those that prefer NOT to have the lockout feature.
    HKP-01800
    $14.95
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  • New - Streamlight TLR-4 Tactical Light & Laser Combo - Red - HKP-08538 Streamlight TLR-4 Tactical Light & Laser Combo - Red
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    Streamlight TLR-4 Tactical Light & Laser Combo - Red

    Streamlight

    $209.95
    Streamlight TLR-4 Tactical Light & Laser Combo - Red Features: Features C4 LED technology and a 640-660nm red laser 5300-candela peak beam intensity; 170 lumens Runs 1.5 hours to the 10% output level (LED only or LED and laser); 11 hours...
    HKP-08538
    $209.95
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    $209.95
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  • New - H&K HK USPC/45/45C .45 ACP Trigger Bar - HKP-01255 HK45, HK45 Compact, USP, USP Compact .45 ACP Trigger Bar
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    HK45, HK45 Compact, USP, USP Compact .45 ACP Trigger Bar

    H&K Heckler & Koch

    $44.95
    New HK German Factory Trigger Bar Compatible With: HK USP 45, USP .45 Tactical HK USP Compact .45 HK 45, HK45 Tactical HK45C, HK45C Tactical
    HKP-01255
    $44.95
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    $44.95
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  • New - H&K HK USP Left Side V1/5/9 Decocking Lever - HKP-01169 HK USP Decocking Lever - Left Side V1/5/9
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    HK USP Decocking Lever - Left Side V1/5/9

    H&K Heckler & Koch

    $59.99
    H&K HK USP Left Side V1/5/9 Decocking Lever A Heckler and Koch genuine part. This item allows a right-handed shooter to have the safety and or decocking functions on the LEFT side of the firearm. This is to be used in conjunction with the correct...
    HKP-01169
    $59.99
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  • New - H&K HK USP Raised Tactical Front Sight - Black - HKP-01403 HK USP Raised Tactical Front Sight
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    HK USP Raised Tactical Front Sight

    H&K Heckler & Koch

    $29.95
    H&K HK USP Raised Tactical Front Sight Compatible With: USP 9mm USP .40 USP .45 USP Tactical models USP Expert models
    HKP-01403
    $29.95
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  • New - H&K UMP (.40 S&W/.45 ACP/9mm) Lower Release Lever For Hammer - HKP-01890 HK UMP Release Lever
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    HK UMP Release Lever

    H&K Heckler & Koch

    $9.95
    HK UMP Catch Release Lever Or Trip Lever For All UMP Lowers  
    HKP-01890
    $9.95
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  • Out Of Stock
    New - H&K G3 Operators Manual - HKP-15211

    HK G3 Operators Manual

    HKP HK Parts

    $21.95
    HK G3, 91, PTR Operators Manual The G3 Operators Manual is for the Full Auto version of the HK91. Page-by-page translation of the original German Army instruction manual for the G3 family of firearms. With 120 pages and six full-color illustrations...
    HKP-15211
    $21.95
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  • New - PTR Tactical Handguard Rail Screw - HKP-16744
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    Handguard Rail Screw - Tactical

    PTR

    $0.69
    PTR Tactical Handguard Rail Screw The 6, 4, 3 & 2 inch rail sections use these screws to attach themselves to the tactical forearm. This is the screw that is used on all the tactical forearm rails (2 inch, 3 inch, 4 inch, 6 inch). A great spare to...
    HKP-16744
    $0.69
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    $0.69
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  • New - H&K MP5/MP5K 3-Lug Blank Firing Adapter - HKP-01990 HK MP5, MP5K 3-Lug Blank Firing Adapter
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    HK MP5, MP5K 3-Lug Blank Firing Adapter

    H&K Heckler & Koch

    $169.95
    H&K MP5/MP5K 3-Lug Blank Firing Adapter This part attaches to the end of the 3-lug barrel tip and will allow the use of 9mm blanks for training. A brand new HK German manufactured part. Specifications: 3-Lug Blank Firing Adapter Compatible...
    HKP-01990
    $169.95
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  • HK91, G3, MSG90 10 Round Magazine - Alloy H&K Heckler & Koch HKP-22418 HK91, G3, MSG90 10 Round Magazine - Alloy H&K Heckler & Koch HKP-22418
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    HK91, G3, PTR Magazine - 10 Round - Alloy

    H&K Heckler & Koch

    $37.95
    H&K HK91, G3, MSG90 10 Round Magazine - Alloy This part counts as 1 US-made part for 922r compliance for HK rifles. Manufactured by HK and converted to ten round capacity in the United States using a US-made floorplate. Compatible With: HK91 HK...
    HKP-22418
    $37.95
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  • New - SB Tactical SBA5 Brace - HKP-21794-M Brace - SBA5
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    Brace - SBA5

    SB Tactical

    $123.95
    SB Tactical SBA5 Brace The SBA5 Pistol Stabilizing Brace is 5-position adjustable and designed for all platforms capable of accepting a mil-spec carbine receiver extension. Featuring an integral, ambidextrous QD sling socket and an arm cuff based on the...
    HKP-21794-M
    $123.95
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  • New - HKP HK VP9SK/P30SK +5 Magazine Extension Kit - HKP-20566-M HK VP9SK, P30SK +5 Magazine Extension Kit
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    HK VP9SK, P30SK +5 Magazine Extension Kit

    HKP HK Parts

    $34.95
    Magazine Extension Kit +5 - HK VP9SK, HK P30SK HK Parts magazine extension kit adds 5 additional rounds to the HK VP9SK/P30SK magazine with the simple swap of the floor plate & high-reliability mag spring.  HKP highly recommends using a magazine...
    HKP-20566-M
    $34.95
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