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 UMP/USC (.45 ACP) Magazine Loader - HKP-00606 HK UMP, USC Magazine Loader - .45 ACP
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    HK UMP, USC Magazine Loader - .45 ACP

    H&K Heckler & Koch

    $49.95
    HK German Factory .45 Magazine Loader for HK USC and HK UMP Fits all HK German UMP .45 25-round magazines as well as the USC 10-round factory magazines. A great addition for your range time and to avoid those sore thumbs. Compatible With: UMP (Germany...
    HKP-00606
    $49.95
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  • Used - H&K 93/53/33 (5.56/.223) Surplus Fixed Stock - A2 - Black - HKP-19075 HK33, HK53, HK93 A2 Fixed Buttstock - Surplus
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    HK33, HK53, HK93 A2 Fixed Buttstock - Surplus

    H&K Heckler & Koch

    $249.95
    Surplus - Fixed Stock - HK93,33,53 HK93 Surplus Stock - Black comes with a matching buttpad. Ready to install on your HK or clone rifle. Last remaining units. Once all are gone there will be no more. Compatible HK 93, 33, 53 *Please note that these are...
    HKP-19075
    $249.95
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  • Out Of Stock
    New - H&K 9mm Barrel Flute Cleaning Brush - HKP-00138

    Barrel Flute Cleaning Brush - 9mm

    H&K Heckler & Koch

    $38.95
    Heckler and Koch Barrel Flute Cleaning Brush for 9mm This HK-manufactured brush is a must-have for the proper care of your HK 9mm rifle/pistol, as the flutes need to be clean and free of carbon for proper function. A great cleaning tool to have on hand...
    HKP-00138
    $38.95
    Out Of Stock
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  • On Sale
    New - HK Parts Range Bag - Small - HKP-20740 HKP small range bag in black with red HKP logo, compact tactical-style shooting bag shown from the front
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    HKP Range Bag - Small

    HKP HK Parts

    Now: $23.95
    Was: $29.95
    Get your hands on our new premium range bags. This range bag is compact while being able to hold a lot of gear. This range bag will easily carry a couple pistols, holster, several magazines & pouches, ammo, eye & hearing protection, and other...
    HKP-20740
    Now: $23.95
    Was: $29.95
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  • Used - H&K 91/G3 (7.62x51/.308) Stock Set w/ Backplate - OD Green - Hand Picked - HKP-18237
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    HK91, G3 Buttstock Set with Backplate - OD Green - Hand Picked

    H&K Heckler & Koch

    $84.95
    Original G3, 91, PTR German Army Used Surplus O.D. Green Stock Set - Complete  Factory HK German Production. Each stock set is used but in perfect working order. Each set was hand picked and the best sets we have in stock. Includes:  Slimline...
    HKP-18237
    $84.95
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  • New - H&K 10 Round HK VP9SK/P30SK/P2000SK Magazine Spring - HKP-01480
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    HK VP9SK, P30SK, P2000SK Magazine Spring - 10 Round

    H&K Heckler & Koch

    $6.95
    Magazine Spring  A great wear and replacement item as this is a consumable part and prone to wear and tear. If your slide is not locking back on the last round or you are having issues with reliable feeding, the magazine spring may be fatigued and...
    HKP-01480
    $6.95
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  • New - H&K Selector Catch Lever Spring For Ambidextrous Trigger Packs - HKP-17328
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    HK Selector Catch Lever Spring - Ambi Trigger Packs

    H&K Heckler & Koch

    $12.95
    HK German Ambidextrous Trigger Pack Axle Spring For Catch Lever This is the spring that powers the ambi lever that allows you to take apart any of the ambidextrous trigger packs. This lever spring takes the spring tension off of the left and right side...
    HKP-17328
    $12.95
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  • On Sale
    New - MKE AP5 Slimline Forearm - HKP-22222 HK MP5, AP5 Slimline Handguard
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    HK MP5, AP5 Slimline Handguard

    MKE

    Now: $33.71
    Was: $44.95
    MKE AP5/MP5 Slimline Forearm The classic and rare slimline style hand guard crafted by MKE in Turkey is specifically designed for the Century AP5, MP5, and other in-spec clones. The original HK design was Introduced in the late 60s and widely used until...
    HKP-22222
    Now: $33.71
    Was: $44.95
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  • On Sale
    HK MP5 Hat - Snapback - Flat Brim - OSFM HK MP5 Hat - Snapback - Flat Brim - OSFM
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    HK MP5 Hat - Snapback - Flat Brim - OSFM

    HKP HK Parts

    Now: $18.95
    Was: $22.99
    HKP MP5 Flat Brim Snapback Hat - OSFM Get your hands on some of our premium hats!  Features: Official HKP merchandise 5" wide HKP logo Cotton twill Mesh back panels Plastic adjustable snap closure Size: OSFM Six-panel
    HKP-21451-M
    Now: $18.95
    Was: $22.99
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  • On Sale
    New - HKP Sig Sauer P320 M17 Compensator - Black - HKP-21123 Sig Sauer P320 M17 Compensator
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    Sig Sauer P320 M17 Compensator

    HKP HK Parts

    Now: $119.95
    Was: $189.95
    HKP SIG P320 M17 Compensator Our P320 M17 compensator reduces recoil and muzzle flip. Each unit is 100% US-made and finished in durable black cerakote. Our M17 compensator features a Picatinny rail to mount lights and lasers.  Compatible With: SIG...
    HKP-21123
    Now: $119.95
    Was: $189.95
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  • On Sale
    New - Magpul M-LOK 9 Slot Rail Section - HKP-19570 M-LOK Rail Section - 9 Slot
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    M-LOK Rail Section - 9 Slot

    Magpul

    Now: $20.95
    Was: $24.95
    Magpul M-LOK 9 Slot Rail Section Designed for use with all M-LOK compatible Hand Guards and Forends, M-LOK Aluminum Rail Sections allow the attachment of various 1913 Picatinny spec rail-mounted accessories such as lights, vertical grips, etc. Machined...
    HKP-19570
    Now: $20.95
    Was: $24.95
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  • On Sale
    New - G.I. Tanto Cold Steel 7" Knife - HKP-20329 G.I. Tanto 7" Knife
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    G.I. Tanto 7" Knife

    Cold Steel

    Now: $28.95
    Was: $34.99
    G.I. Tanto - Cold Steel Knife   The G.I. Tanto is a no-nonsense tactical knife that comes with a legion of practical uses. The GI Tanto's broad blade, integral quillon guard, and polypropylene handle scales exemplify a tactical knife stripped down...
    HKP-20329
    Now: $28.95
    Was: $34.99
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