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.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
Out Of Stock
HK MP5 Safety Select Catch Lever Sleeve - Ambi
H&K Heckler & Koch
$12.95HK MP5 Safety Select Catch Lever Sleeve - Ambidextrous Trigger Packs Factory replacement sleeve for the safety selector catch lever. Compatible With the Following Ambidextrous Trigger Packs: HK MP5/MP5K HK91/G3 HK93/53/33 HK23/21/11 ***Not compatible...HKP-22337$12.95 -
Out Of Stock
B&T APC223, APC300, APC308 Stock Conversion Kit
B&T Brugger & Thomet
$165.00B&T Brugger and Thomet Stock Conversion Kit for APC223, APC300, APC308 B&T factory stock conversion kit for converting a retractable brace system to a retractable stock system. Also great to have on hand for replacement parts. Compatible...HKP-22276$165.00 -
On Sale
HK 90 Series Locking Roller for Bolt Head - 7.96mm
MKE
Now: $22.95Was: $28.95MKE -4 Roller for Bolt Head 7.96mm - Under-sized The proper roller size is essential for proper head spacing and bolt gap. Made in Turkey by MKE on HK tooling. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the...HKP-22238Now: $22.95Was: $28.95 -
On Sale
HK93, HK53, AP53 Binary Trigger Group- 3 Position Navy Engraved
H&K Hechler & Koch / FA Franklin Armory
$899.95 - $989.95Franklin Armory/H&K 53/93 & AP53 Binary Trigger Group- 3 Position Navy Engraved US-made binary trigger group installed in a German Navy-style polymer housing. Features a 3-position selector with 0,1,F pictogram markings. All three positions align...HKP-22170-M$899.95 - $989.95 -
HK CC9 Slide Release Pin
H&K Heckler & Koch
$5.95H&K CC9 Slide Release Pin Genuine H&K CC9 slide release pin secures the slide release lever to the frame. Compatible With: HK CC9HKP-22121$5.95 -
On Sale
Dual Magazine Pouch - 338LM - Velcro Mount
B&T Brugger & Thomet
Now: $12.95Was: $24.95B&T Dual Magazine Pouch - 338LM Designed for the B&T APR338 but will fit other, similarly sized magazines. Made from heavy duty Cordura fabric in Poland by NFM Group.HKP-21883Now: $12.95Was: $24.95 -
HK21E, HK23E Hammer, Strut Assembly
H&K Heckler & Koch
$339.95H&K HK21E/23E Hammer & Strut Assembly This original HK hammer and pinned strut assembly is sourced directly from Germany, providing the correct replacement or perfect upgrade for your HK21E or HK23E. Most U.S. HK21E/23E-style firearms are...HKP-21855$339.95 -
On Sale
HK416, MR556 Facemount KeyMount (KeyMicro) - 360HD 1/2-28 FD
JMAC Customs
Now: $111.95Was: $124.95JMac Customs 360HD 1/2-28 FD Facemount KeyMount (KeyMicro) The JMac Customs 360HD is a high-performance muzzle device designed for superior durability, recoil mitigation, and compatibility with suppressors. Engineered with 360° ports for optimal...HKP-21825Now: $111.95Was: $124.95 -
On Sale
HK VP40 Conversion Barrel - .40 S&W to 9mm - Threaded - 13.5x1
RCM
Now: $171.95Was: $214.95RCM HK VP40 to 9mm Conversion Barrel - Threaded - 13.5x1 This 9mm conversion barrel is a drop-in replacement that allows your VP40 to shoot the popular 9mm cartridge. Comes with a thread protector. Each barrel is made from ordnance-grade steel,...HKP-21790Now: $171.95Was: $214.95 -
On Sale
HK P30 Conversion Barrel - .40 S&W to 9mm - Threaded 13.5x1
RCM
Now: $181.95Was: $214.95RCM HK P30 .40 to 9mm Conversion Barrel - Threaded - 13.5x1 This 9mm conversion barrel is a drop-in replacement that allows your P30 to shoot the popular 9mm cartridge. Comes with a thread protector. Each barrel is made from ordnance-grade steel,...HKP-21786Now: $181.95Was: $214.95 -
Out Of Stock
B&T APC9, GHM9, SPC9 Lower Trigger Group - Aluminum
B&T Brugger & Thomet
$689.95B&T Aluminum Lower Trigger Group for APC9, GHM9, SPC9 B&T factory semi-auto lower trigger group for all APC9, SPC9, and GHM9 platforms. Made from hard-coat anodized aluminum. Compatible With: B&T APC9 B&T GHM9 B&T SPC9HKP-21756$689.95 -
On Sale
HK P30 MOD 1 Compensator - Threaded Barrel
HKP HK Parts
Now: $143.95Was: $179.95HKP HK P30 MOD 1 Compensator - Threaded Barrel 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 comp...HKP-21220Now: $143.95Was: $179.95