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, HK93 Barrel - 5.56 / .223 - 16.1" - Threaded 15x1
RCM
$234.95RCM HK 33/93 (5.56/.223) Barrel - Threaded 15x1HKP-01052$234.95 -
On Sale
HK MP5 Locking Piece #24 - 90 Degree - Low Impulse - .40 S&W, 10mm
HKP HK Parts
Now: $40.46Was: $44.95MP5 40 & MP5 10mm US Made - Low Impulse Locking Piece Marked (Low #24) For the MP5 40 or 10mm Firearms. Made out of enhanced material and heat treated to spec. The # 24 is the 90 degree locking piece...HKP-18272Now: $40.46Was: $44.95 -
Out Of Stock
HK MP5K, SP89 Trigger Housing - FBI Style - 2 Position Pictogram 0,1 Pictogram - Clipped and Pinned - 9mm
H&K Heckler & Koch
$245.95H&K MP5K/SP89 9mm 2 Position (0,1 Pictogram) FBI Style Trigger Housing - Clipped & Pinned This clipped and pinned trigger housing is modified to fit MP5K or SP89 housings. It accommodates all HK...HKP-00402$245.95 -
On Sale
HK MP5F, MP5 Cocking Tube and Handle - Support Combo - .40 S&W / 10mm
HKP HK Parts
Now: $159.34Was: $249.95HKP MP5F & MP5 40,10 Cocking Tube, Handle, Support Combo HK MP5 40/10 or MP5 F factory correct USA made cocking tube and cocking tube support assembly complete. This is a factory correct MP5F/MP5...HKP-18152Now: $159.34Was: $249.95 -
On Sale
HK91, G3, HK33, HK93 Bayonet Adapter Replacement Kit - Turkish Contract
Other
Now: $13.46Was: $14.95Turkish Contract Bayonet Adapter Replacement Kit for HK91, HK G3, HK33, HK93 Turkish contract replacement hardware kit for early-style bayonet adapters. Intended for use with pre-ban pattern adapters...HKP-22518Now: $13.46Was: $14.95 -
On Sale
HK MP5, MP5K Optic Mount - Aimpoint ACRO P-1
HKP HK Parts
Now: $50.96Was: $98.95HKP HK Parts Aimpoint ACRO P1 Mount for your HK MP5 and HK MP5K Low-profile mount with a direct Aimpoint ACRO mounting interface. The smallest mount in the market with a sleek and clean overall look...HKP-99354Now: $50.96Was: $98.95 -
HK G36C Apparel - Hats, Patches, and Shirts
HKP HK Parts
$0.00HKP HK G36C Apparel and Patch Collection Represent your platform with the HK Parts G36C Series apparel and accessories lineup. Built for enthusiasts who appreciate iconic firearms and clean,...HKP-22456-M$0.00 -
HK MP5 Selector Lever Extension - Used
H&K Heckler & Koch
$24.95H&K MP5 Safety Selector Lever Extension - Used Used factory original HK MP5 safety selector lever extension in good condition. This part affixes to the safety selector lever to extend the safety...HKP-99317$24.95 -
On Sale
HK MP5K Trunnion - Gunsmith Special
USA
Now: $18.71Was: $54.95HK MP5K Trunnion - Gunsmith Special US made HK MP5 trunnions sold as-is. Will require work before being functional. We recommend the work be performed by a professional gunsmith. The condition will...HKP-99090Now: $18.71Was: $54.95 -
HK VP9, VP40 Optic Mount, Aimpoint ACRO P-1, P-2
B&T Brugger & Thomet
$55.00B&T HK VP9 Mounting Base for Aimpoint ACRO P-1 and P-2 Upgrade your HK VP9 or VP40 with the B&T mounting base for Aimpoint ACRO optics. Made from high-quality steel, this durable mounting base...HKP-21863$55.00 -
On Sale
HK21, FMP Drum and Drum Hanger - 100 Round
H&K Heckler & Koch
Now: $1,188.95Was: $1,288.95HK Heckler and Koch HK21 and FMP Drum Hanger with 100 Round Drum Complete your HK21 or FMP21 build with the incredibly rare original H&K drum hanger and 100-round drum. These components have long...HKP-21509Now: $1,188.95Was: $1,288.95 -
On Sale
HK MP5 Folding Stock - MBT
B&T Brugger & Thomet
Now: $585.00Was: $650.00B&T Brugger and Thomet MBT Stock for HK MP5 B&T MBT folding stock for HK MP5. Polymer stock and adapter.HKP-21422Now: $585.00Was: $650.00