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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Out Of Stock
HK21E, HK23E Buttstock, Complete
H&K Heckler & Koch
$0.00HK German HK21E, 23E Stock Complete The latest manufacture and no longer in production or offered by HK Germany.HKP-00575$0.00 -
HK11, HK21, HK23 Bipod - Surplus
H&K Heckler & Koch
$447.95Heckler and Koch Bipod for HK11, HK21, HK23 German HK bipod for the HK21 series light machine gun system. This is the original, older-style HK21 bipod sourced from military surplus. These units are no longer in production and available only in limited...HKP-00565$447.95 -
Out Of Stock
HK91, G3, PSG1, MSG90 T-Rail Reinforcement Set for Receiver
Michaels Machines
$299.95HK Receiver Reinforcement T-Rail Set For Left and Right Sides T-rails are used to strengthen HK receivers or for custom builds. These are the finest T-rails available on the market. Made from enhanced steel and perfect for that custom HK project...HKP-00236$299.95 -
PTR32 Barrel - 7.62x39 - 16" - Threaded 5/8"x24 - KFR
PTR
$249.95PTR-32 (7.62x39) KFR Barrel - 16 Inch 16.35" Stress relieved, tapered contour, threaded 5/8" x 24, twist 1 in 10" RH Specifications: 16.25" overall length Chambered in 7.62x39mm Fully Fluted with 12 flutes Match grade Please Note: PTR barrels...HKP-02200$249.95 -
Out Of Stock
HK91, G3 Magazine Loader
H&K Heckler & Koch
$0.00HK Factory Loader for HK 91/G3 Magazines Compatible With: HK 91 magazines HK G3 magazines PTR-91 Magazines HK PSG1 magazines HK MSG-90 magazines HK 90 series 308 magazinesHKP-00221$0.00 -
HK91, G3 Trigger Housing - Double Tang 4 Position 0,1,3,F Pictogram - Clipped and Pinned
H&K Heckler & Koch
$534.95HK Heckler and Koch 4 Position 0,1,3,F Pictogram Double Tang Trigger Housing, Clipped and Pinned for HK G3 and HK91 and PTR This ambidextrous HK trigger housing features a 4 position pictogram 0,1,3,F and is set up in a semi-auto clipped and pinned...HKP-01515$534.95 -
Out Of Stock
HK91, G3 Slimline Handguard
PTR
$39.95New Slim Line HK91, G3, PTR Forearm- US Each forearm is a new US made offering made on the original HK tooling acquired by PTR91. Black in color, no internal heat shield. This hand guard also counts as 1 desirable US compliant part for your HK 91, G3...HKP-16251$39.95 -
On Sale
HK33, HK93 Barrel - 300 BLK - 16.1" - Threaded 5/8x24
RCM
Now: $198.95Was: $234.95NCM HK33/93 .300 BLK 16.125 Inch Barrel - Threaded 5/8x24 Each barrel was designed for use with the wildly popular AAC style quick detach muzzle breaks and cans in the 5/8x24 thread pitch. Although, this barrel is perfect for just about any .300 BLK...HKP-17392Now: $198.95Was: $234.95 -
On Sale
HK MP5 Bolt Carrier - Full Auto - .40 S&W, 10mm, .357 SIG
RCM
Now: $125.95Was: $157.95MP5 40, 10mm - Full Auto Bolt Carrier Machined completely from billet ordnance steel. This carrier is made to the latest specs and are Tungsten filled and heat treated providing the finest American made carrier available. Compatible With: MP5 40 MP5...HKP-01192Now: $125.95Was: $157.95 -
HK MP5 Trigger Group - Navy 3 Position - .40 S&W, 10mm
H&K Heckler & Koch
$2,499.95HK German MP5 40/10/ 3 Position Navy (0,1,F) Trigger Group This Trigger Group Is A Factory Push Pin Safe, Semi, Full Navy Ambidextrous 3 Position Trigger Group For Registered Push Pin MP5's. This Trigger Group Can Also Be Used For Registered Sear...HKP-00448$2,499.95 -
Out Of Stock
HK MP5 Magazine Floorplate - .40 S&W, 10mm
H&K Heckler & Koch
$14.95H&K Heckler and Koch New HK German Magazine Floor Plate HK MP5 40,10HKP-01269$14.95 -
On Sale
HK MP5K Bolt Carrier - Full Auto - .40 S&W, 10mm - USA
HKP HK Parts
Now: $119.95Was: $149.95HKP MP5K 40/10 Full Auto Bolt Carrier Machined completely from billet ordnance steel. This carrier is made to the latest specs and is Tungsten filled, and heat treated providing the finest American made carrier available. Not to be confused with cheap...HKP-18362Now: $119.95Was: $149.95