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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On Sale
HK VP Series, P Series, USPC Mag Pouch - Twin
Comp-Tac
Now: $50.95Was: $59.95Comp-Tac HK VP Series/P Series/USPC Twin Mag Pouch The Comp-Tac Twin Magazine Belt pouch is an outside the waistband holder that carries two magazines attached together. Designed to be worn at 9:00 for a right handed shooter this is an excellent way to...HKP-17502Now: $50.95Was: $59.95 -
On Sale
HK91, G3 Magazine Follower - USA
Now: $15.95Was: $19.95Magazine Follower - USA - HK 91, G3, PTR USA made magazine follower for HK 91, G3 magazines. This follower is made in the USA and counts as one US made compliant part needed for builds and conversions for 922r compliance.HKP-18997Now: $15.95Was: $19.95 -
On Sale
HK91, G3, PTR Bench Mat
HKP HK Parts
Now: $19.95Was: $24.95HK G3, HK91 & PTR 7.62 Bench, Gunsmithing Repair Mat Our HK G3 bench mat is the perfect cleaning & repair mat designed specifically for your HK G3 models. Have fun and learn while you work on your favorite H&K firearm. The soft top protects...HKP-17283Now: $19.95Was: $24.95 -
Out Of Stock
PTR Muzzle Brake - Threaded 5/8x24 RH - 5.56 / .223, 7.62x51 / .308 - CA/NY Compliant
PTR
$24.95PTR (5.56/.223) & (7.62x51/.308) Muzzle Brake - NY/CA Compliant - Threaded 5/8x24 RH This new muzzle brake is made in the USA to exact HK standards. The best quality and price in the country. This muzzle device is a partially milled version (not...HKP-17927$24.95 -
On Sale
HK MP5K, SP89 Locking Piece - 110 Degree - 9mm
RCM
Now: $29.95Was: $33.95MP5K, SP89 Locking Piece - 110 Degree - RCM US-Made Locking Piece. Made from ordnance grade steel, heat treated, and made to last by RCM. HK no longer makes the 110-degree locking piece as they use the 100-degree locking piece in all 9mm MP5 and MP5K...HKP-01465Now: $29.95Was: $33.95 -
On Sale
HK MP5K, SP89, SP5K Tactical Folding Stock - 9mm
Choate
Now: $206.95Was: $229.95HK SP5K Folding Tactical Stock Made in the USA and counts as one 922r compliant part. Compatible With: MP5K D54K SP5K SP89 Zenith Z-5P/Z-5K & in-spec clonesHKP-00781Now: $206.95Was: $229.95 -
HK USP 9mm, .40 S&W Complete Recoil Assembly
H&K Heckler & Koch
$79.95New HK USP 9mm & .40 Cal Tactical Recoil Spring With Buffer Assembly - Complete This is a great spare or replacement item to have on hand, it is the factory OEM HK part for Tactical models. Each recoil rod assembly was designed to be used for heavy...HKP-01475$79.95 -
HK91, G3 Locking Piece - 45 Degree
H&K Heckler & Koch
$29.95Heckler and Koch New Old Stock German HK Locking Piece for G3, 91, and PTR This is the factory-correct 45-degree locking piece for HK 91/G3 and PTR .308 full-length firearms. All steel construction is new in sealed wrapping.HKP-00499$29.95 -
HK91, G3 Firing Pin - Used
H&K Heckler & Koch
$6.95H&K 91/G3 (7.62x51/.308) Firing Pin - Used Great for spares as this is a common wear item. Compatible With: HK G3 & HK 91, PTR or clone riflesHKP-16710$6.95 -
On Sale
HK USP Compact Optic Plate - Trijicon RMR, Holosun SRO - Red Dot Pistol Mount
Evolution Gun Works
Now: $41.95Was: $49.95Evolution Gun Works HK USP Compact Trijicon RMR-SRO, Holosun 407C-507C Mount Includes: Mounting hardware Features: Material: 7075 aluminum Coating: matte black hardcoat Overall length: 1.780" Overall width: 1.1" Mounting hardware: (2) 6-32 flat...HKP-20043Now: $41.95Was: $49.95 -
Out Of Stock
HK417, MR762, G28 Slim Line Retractable Buttstock
H&K Heckler & Koch
$86.95H&K HK MR762/417/G28 Slim Line Retractable Stock New From HK Germany the slim line retractable stock fits all MR762, HK 417 buffer tubes. Marked with the HK logo and issued on specialized HK 417, MR762 rifles. Compatible With: HK MR762 HK 417 HK...HKP-17135$86.95 -
Out Of Stock
HK91, G3 Fixed Complete, Complete - Surplus
H&K Heckler & Koch
$129.95German G3, 91, PTR Stock complete - Surplus Used black German surplus stock complete. Ready to install on your HK or clone rifle. Used in perfect working condition and each stock includes all parts to be a complete stock ready to use on your HK G3, 91,...HKP-18936$129.95