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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HK33 Slimline Handguard
H&K Heckler & Koch
$59.95H&K HK HK33 Slimline Forearm Used German military surplus black cerakote slimline forearm cut down to fit the HK33. These are rare items only offered here at HK Parts. Each item is in good to excellent shape. Compatible With: HK33 HK...HKP-20273-M$59.95 -
HK91, HK G3, PTR Bolt Head Complete - LIKE NEW
H&K Heckler & Koch
$179.95German HK G3 & HK 91 & PTR Bolt Head Complete - Used German "ID" Date Coded Made on HK tooling & prints in Germany in 1983. Each used bolt head is complete with all parts installed & 100% functional. Taken from live demilled German HK G3...HKP-20227$179.95 -
HK MP5K Folding Stock w/ Adapter
$269.95German Folding Stock with HK Parts Adapter - MP5K German folding stock with MP5K HK Parts Adapter. The HK Parts adapter offers a QD attachment point and is made from hard coat anodized aluminum. Compatible With: MP5K SP5K In spec clonesHKP-19550$269.95 -
HK USP Compact Recoil Rod Assemblies Snap Ring
H&K Heckler & Koch
$7.95HK USPC Recoil Rod Assemblies Snap Ring A great item to have on hand as they are prone to falling off when doing scheduled maintenance and cleaning on the recoil assemblies. Compatible With: HK USP Compact 9mm HK USP Compact .40 S&W HK USP Compact ...HKP-01944$7.95 -
HK MP5K/SP89/SP5K 9mm Shoulder Rig Lanyard With Ring
H&K Heckler & Koch
$34.95HK German MP5K Shoulder Rig Lanyard With Ring For use with all HK shoulder harnesses to quickly deploy the stock when folded. This is the same unit used by the Secret Service and the FBI. Compatible with all MP5K and MP5K-N folding stocks.HKP-00022$34.95 -
HK MP5SD Locking Piece - 100 Degree - 9mm
H&K Heckler & Koch
$179.95HK German MP5SD Factory Locking Piece MP5 "action" SD locking piece is the current factory-correct locking piece for the MP5SD. For optimal results, use the action 3 or F bolt head for the most reliable feeding and extraction. These upgrades work...HKP-00135$179.95 -
HK Trip Lever - Friction
H&K Heckler & Koch
$24.95H&K Trip Lever - Friction This is the older friction-style trigger pack found on older HK trigger packs and all HK registered sear packs.HKP-02393$24.95 -
HK MP5 End Cap with Sling Swivel
HKP HK Parts
$84.95HK Alloy Pistol End Cap with Sling Swivel Made from solid billet aircraft grade aluminum with the HK German sling loop and rubber heavy duty H buffer. With the alloy construction this unit will not break like the plastic end caps. Compatible...HKP-18138$84.95 -
HK91, G3 20 Round Magazine - Steel - Refinished
H&K Heckler & Koch
$57.95HK German 20 Round Steel Magazine - Refinished HK G3 factory steel 20-round magazine, expertly restored to its former glory. This magazine has been meticulously refinished inside and out, featuring a polished follower along with a fully parkerized finish...HKP-21587$57.95 -
Out Of Stock
HK 30 Round 416, HK MR556 Magazine - Maritime- TiN
H&K Heckler & Koch
$149.95HK 416 & MR556 30 Round Maritime Magazine - TiN Coated Get your hands on some TiN coated factory Heckler & Koch magazines. Each magazine starts out as a fresh 30 round mag before being professionally dsiassembled, TiN coated, and...HKP-21468$149.95 -
HK VP9, VP9SK, VP40 Firing Pin Return Spring
H&K Heckler & Koch
$9.95H&K VP9/VP9SK, VP40 Firing Pin Pressure Spring Compatible With: HK VP9/VP9SK HK VP9A1 F, VP9A1 K HK VP40HKP-16831$9.95 -
HK P30, P30L, P2000 Catch
$53.95Catch - HK P30, P30L, P2000 New HK German Catch Assembly for all P Series of pistols. Compatible With: HK P30 HK P30L HK P30SK HK P2000 HK P2000SK Calibers P2000 - 9mm P2000 - .40 S&W P2000 - .357 SIG Please note: This is also the latch needed...HKP-15434$53.95