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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HK USPC Magazine Housing - 9mm - 10 Round
H&K Heckler & Koch
$19.9510 Round HK USPC 9mm Magazine Housing This is an all-steel construction for the HK USPC and P2000 9mm models. New HK German manufacture. Compatible With: HK USPC 9mm HK P2000 9mm HK P2000SK (will extend below the mag well)HKP-02500$19.95 -
Out Of Stock
HK MP5, HK91, HK93 Grip Wrap - Kydex
Solar Tactical
$79.95Solar Tactical HK MP5/93/91 Kydex Grip Wrap Featureless Kydex grip wrap for use with detachable magazines. Prevents a wrap around style pistol grip. Allows the use of the factory magazine release and detachable magazines over 10 rounds. Preban...HKP-18916$79.95 -
HK416, MR556 Handguard - Extended Windowed - RAL8000
H&K Heckler & Koch
$840.00HK416A5, MR556 Extended Windowed Handguard - RAL 8000 HK German HK416 A5 extended handguard with window for use of the suppressed/non-suppressed gas block. This handguard is designed to minimize heat mirage. 14 7/8" long, 1lb, 4oz. Compatible With: HK...HKP-17711$840.00 -
On Sale
HK416 E1 Buttstock and Buffer Tube Combo - Commercial OTB
H&K Heckler & Koch
Now: $392.95Was: $469.95Heckler and Koch's E1 Buttstock and OTB Buffer Tube Combo - Commercial for HK416 Genuine HK416 E1 commercial buttstock with the new style marine environment "over the beach" buffer tube. Buffer tube has ball bearing rollers to tighten the buttstock...HKP-18361Now: $392.95Was: $469.95 -
MM HK 23E (5.56/.223) Saw Feed Box Adapter
Michaels Machines
$299.95Saw Box (M249) Adapter For HK23E Or MM23E Belt FedsHKP-02072$299.95 -
Out Of Stock
HK21E, HK23E, HK21, HK11, HK13 Barrel Grip Holder - German
H&K Heckler & Koch
$34.95H&K 21E/23E/21/11/13 (7.62x51/.308) & (5.56/.223) Barrel Grip Holder - German New old stock with handling marks from being bagged and shipped in bulk. German HK manufacture.HKP-16427$34.95 -
Out Of Stock
HK53 Complete Recoil Assembly
H&K Heckler & Koch
$149.95HK German HK53 Recoil Assembly Complete Brand new HK German manufactured. Each unit will fit factory HK53 firearms or clones that are built to factory specs. Compatible With: HK 53 HK clones such as V53 & C53 firearmsHKP-00479$149.95 -
HK91, G3, HK33, HK53, HK93 Stock and Stock Adapter - AR Style
PTR
$209.95PTR AR Brace/Stock Adapter w/ Magpul Stock - G3, 91, 93, 53, 33 AR15/M16 to HK 90 series stock adapter set with a Magpul MOE stock installed as well as the buffer tube and castle nut. Just use your existing back-plate and MIL-SPEC buffer assembly and you...HKP-15457$209.95 -
HK MP5 Locking Roller +4 - .40 S&W, 10mm
H&K Heckler & Koch
$20.95H&K Heckler and Koch New +4 roller for HK MP5 40/10 Hard to find and essential for making headspace adjustments when necessary. Great spare to have on hand and no longer in production. Please Note: The price listed is per roller...HKP-00335$20.95 -
Out Of Stock
Sidelok Optic Mount - 30mm - Modular
KDG Kinetic Development Group
$224.95Kinetic Development Group Sidelok Modular Optic Mount - 30mm The new KDG Modular Optic Mount is based off the proven Sidelok family of quick detach optic mounts and features the same user-friendly, tool-free design. KDG set out to design a Sidelok mount...HKP-19062$224.95 -
HK MP5, HK94 Recoil Guide Rod
H&K Heckler & Koch
$14.95New HK German MP5, 94 Recoil Guide Rod BarHKP-01054$14.95 -
HK MP5, MP5K Optic Mount, Trijicon 1X24 Reflex
B&T Brugger & Thomet
$127.95B&T MP5 & MP5K Mount for Trijicon 1X24 Reflex Low profile mount for HK MP5 with Trijicon RX01m 1x24 Specifications: Color: Black Width max: 42.5 mm Length max: 125.5 mm Height max: 25.8 mm Material: Aluminum & steel Treatment: Hartcoat...HKP-16863$127.95