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 MP5, HK94 Tactical Folding Stock
Choate
Now: $190.95Was: $224.95Choate MP5 & HK94 Tactical Folding Stock Each stock is adjustable from 10" to 12" using the included adjustable spacer system, which will allow a full 2" range in adjustment for the specific user or mission requirements. This will enable...HKP-00778Now: $190.95Was: $224.95 -
HK416, MR556 Magazine Catch - Ambi
H&K Heckler & Koch
$104.95Heckler and Koch Ambidextrous Magazine Catch for HK416 and HK MR556 Factory HK ambi magazine catch, release. Compatible With: HK416A5, MR556 A4 NOT compatible with earlier variants with single-side controlsHKP-22289$104.95 -
HK21 Ammunition Belt with Starter Tab - DM1 - 50 Round
H&K Heckler & Koch
$39.95H&K HK21 DM1 50 Round Belt with Starter Tab - 7.62x51/.308 Custom 50 round belt for HK21 and MG3 belt-fed rifles. Compatible With: HK21HKP-22098$39.95 -
HK417, MR762A4 Bolt Catch, Release - Ambi
H&K Heckler & Koch
$69.95Heckler and Koch MR762 A4 Bolt Catch/Release - Ambi Factory ambidextrous bolt catch lever for the MR762 A4. The A4 variant of the MR762 introduced ambi controls for the bolt catch/release not previously available on the A1 variant...HKP-21960$69.95 -
Out Of Stock
B&T KH9 Covert 9mm "Slip-In" 25 Round Magazine - Coyote Tan
B&T Brugger & Thomet
$50.00B&T KH9 Covert 9mm "Slip-In" 25 Round Magazine - Coyote Tan Enhance your B&T KH9 Covert with this 25-round slip-in magazine, designed for smooth feeding. Featuring a slimline rubber bumper for added protection, this magazine ensures optimal...HKP-21717$50.00 -
On Sale
HK VP9SK, P30SK +5 Magazine Extension Kit
HKP HK Parts
Now: $27.95Was: $34.95Magazine 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-MNow: $27.95Was: $34.95 -
On Sale
HK93 Trunnion
RCM
Now: $54.95Was: $65.00RCM HK93 Trunnion Made to exact factory HK specifications for the HK93, HK33 type builds. These are the best trunnions of their kind on the market. Machined to HK spec making the install painless and hassle free. The way a custom HK build it should...HKP-20807Now: $54.95Was: $65.00 -
HK90 Series Trigger - Refinished
H&K Heckler & Koch
$19.95Refinished German 90 Series Trigger Compatible With: HK91, G3, PTR HK93, 33, 53 HK MP5, 94, Zenith, POF, MKE Clone or other custom buildsHKP-20678$19.95 -
Out Of Stock
HK G36, SL8 Handguard - Quad Rail
B&T Brugger & Thomet
$379.95B&T Brugger and Thomet Handguard Quad Rail For HK G36 and SL8 New B&T Swiss manufactured G36 and SL8 quad rail system. Each unit comes with the complete quad rail as well as the rail covers and sling swivel for a sling. Compatible...HKP-16897$379.95 -
On Sale
HK G36, SL8, UMP, USC Hammer
GSG9
Now: $105.95Was: $124.95G36 & HK UMP Hammer For Lower Or Trigger Group- US Made These hammers are a direct fit on the USC and SL8 platform.HKP-19852Now: $105.95Was: $124.95 -
Out Of Stock
HK91, G3 Barrel - 7.62 / .308 - 18" - Threaded 5/8x24 - Match
PTR
$229.95PTR HK G3/91 (7.62x51/.308) Match Barrel - Threaded 5/8x24 This new PTR-91 US-manufactured 18" heavy profile match grade barrel is perfect for new builds and counts as one US-made compliant part. It features the proper fluted chambers for HK G3/91 rifles...HKP-19633$229.95 -
On Sale
HK VP9 Magazine - 20 Round - 9mm
Strike Industries
Now: $58.95Was: $69.95Strike Industries 20 Round HK VP9 9mm Magazine Strike Industries +5 magazine extension coupled with a 15 round factory German magazine body adds 5 additional rounds total for a fully assembled 20 round HK VP9. Each mag comes fully assembled and...HKP-19628Now: $58.95Was: $69.95