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
TP9, MP9, APC9, SPC9, GHM9, KH9 Magazine Loader - 9mm
B&T Brugger & Thomet
$40.00B&T Magazine Loader - 9mm B&T's factory 9mm magazine loader is compatibly ONLY with B&T factory 9mm magazines. Compatible With: B&T TP9 B&T MP9 B&T APC9 B&T SPC9 B&T GHM9 B&T KH9HKP-21716$40.00 -
HK45 MOD 1 Threaded Barrel Compensator
HKP HK Parts
$179.95HK Parts MOD 1 Compensator for Threaded Barrel: HK45 The HK Parts MOD 1 compensator strikes a seamless balance of form and function. Users will immediately notice the reduction in muzzle flip and recoil, getting you back on target quicker. Each MOD 1...HKP-21658$179.95 -
On Sale
HK MP5SF Bushing Sleeve - Elbow Spring with roller - USED
H&K Heckler & Koch
Now: $2.96Was: $5.95HK MP5SF Bushing Sleeve - Elbow Spring with roller - USED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY USED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. Features: Precision-machined elbow spring...HKP-03330-USEDNow: $2.96Was: $5.95 -
Out Of Stock
HK UMP Stock Block B Push Pin
HKP HK Parts
$34.95Stock Block B Sling Pin With Loop washer & Quick Pull Pin for UMP/USC (.40 S&W/ .45 ACP/9mm)HKP-21249$34.95 -
Out Of Stock
HK P2000 Magazine - 20 Round
HKP HK Parts / Heckler & Koch
$99.95HK Parts and Heckler and Koch 20 Round Magazine for HK P2000 and HK USP9 Compact Specifications: HK P2000 +7 magazine extension coupled with a new full-size HK P2000, 13 round magazine fully assembled as a 20 round HK P2000 magazine. Ideal for...HKP-20789$99.95 -
On Sale
Full Port Muzzle Brake - 6.5mm - Threaded 5/8x24" - Titanium
Tactical Precision MFG
Now: $42.95Was: $84.99TPM 6.5mm Titanium Full Port Muzzle Brake - Threaded 5/8x24 This lightweight titanium muzzle brake is designed by a master gunsmith and is one of the best on the market. The spiral port outlets along with the parabolic internal taper significantly...HKP-20768Now: $42.95Was: $84.99 -
HK G3 .22 20 Round Conversion Magazine - USED
$199.95HK G3 .22 20 Round Conversion Magazine - USED HK .22 caliber conversion kit 20-round magazine for The G3/91. Ideal for those that have the caliber conversion kit and wants to stack up on spare magazines. Condition is used to like new in the gray paint...HKP-20750$199.95 -
Out Of Stock
HK Mark 23 Thread Cap - .45 ACP - Threaded 16x1 RH
HKP HK Parts
$44.95H&K Mark 23 .45 ACP Thread Cap - Threaded 16x1 RH Introducing the new US HK Mark 23 SOCOM Thread Protector, designed for all H&K Mark 23/SOCOM barrels threaded 16x1 RH. This essential accessory protects your valuable threaded barrel and...HKP-20609$44.95 -
MI Side Folder with Lightweight Stock
MI Midwest Industries
$180.95MI Side Folder with Light Weight Stock Features: Made in the USA Heavy-duty side-folding mechanism constructed from 4140 steel Full-length locking lug for maximum strength Solid positive lock up in both positions Steel clamp with large surface...HKP-20065$180.95 -
On Sale
HK VP Series Curved Trigger - Gold Tab
Lazy Wolf
Now: $98.95Was: $134.95C1 - Curved VP Series Trigger - Lazy Wolf Guns - Gold Tab In a collaboration with Lazy Wolf Guns, HK Parts is offering quality aftermarket triggers for your HK VP9 & VP40 handguns. The drop in VP9 series trigger is the finest trigger ever developed...HKP-19813Now: $98.95Was: $134.95 -
Out Of Stock
HK UMP 2 Position Lower Grip Frame
HKP HK Parts
$179.95UMP - 2 Position Lower Grip Frame New UMP Lower. 2 position settings (S,F). Perfect for all your own internals. This item is ideal for the USC to UMP conversion or to keep as a spare. Each lower fits & works with the 45, 40 & 9mm calibers using...HKP-19382$179.95 -
Out Of Stock
HK G36C Handguard with Tri Rail Set
H&K Heckler & Koch
$199.95HK Heckler and Koch Tri-Rail Handguard Forearm for HK G36C New HK German Factory G36C Forearm with both left and right side rails, bottom rail, and hand stop included. This new style forearm also comes with the heat shield installed. Forearm is made in...HKP-00618$199.95