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
Ruger 10/22 Binary Trigger - Curved - BFSIII - BLEMISHED
FA Franklin Armory
Now: $164.99Was: $299.95Franklin Armory BFSIII 22-C1 for Ruger 10/22 - BLEMISHED DAMAGED PACKAGING - PRODUCT UNAFFECTED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN...HKP-19865-BNow: $164.99Was: $299.95 -
On Sale
HK VP9SK EDC Magwell - Ultra Low Profile
HKP HK Parts
Now: $35.67Was: $55.95HKP HK VP9SK EDC Magwell - Ultra Low Profile The smallest and most streamlined EDC magwell for the HK VP9SK, now featuring a fully functional funnel designed for rapid, seamless reloads. Crafted from...HKP-22263-MNow: $35.67Was: $55.95 -
On Sale
HK91, G3 Sniper Trigger Group - AC Unity Grip - Match Trigger
HKP HK Parts
Now: $411.09Was: $644.85HK Parts Trigger Group with AC Unity Grip and Match Trigger for HK91 and HK G3 The HK G3 and HK91 match trigger group combined with the AC Unity grip is a great choice for anyone seeking a tactical...HKP-22251Now: $411.09Was: $644.85 -
HK MP5 Recoil Rod Assembly
RCM
$54.95RCM HK MP5 Recoil Rod Assembly The recoil rod and spring assembly is a great item to have on hand for replacement and spares as this is a consumable part. Compatible With: HK MP5HKP-22202$54.95 -
Out Of Stock
HK416, MR556 Enhanced Buffer Tube - Tan
H&K Heckler & Koch
$192.95Tan HK 416, MR556 OTB (over the beach) Buffer Tube, Receiver Extension - Commercial Genuine HK German-manufactured 416 & MR556 latest generation, marine environment & and over-the-beach buffer tube...HKP-22086$192.95 -
On Sale
HK MP5 Cocking Tube - Extrusion - 8" - Gunsmith Special
USA
Now: $14.96Was: $54.95HK MP5 8" Cocking Tube Extrusion - Gunsmith Special This 8" cocking tube extrusion is ideal for custom HK-style firearm builds, repairs, or refurbishments, providing a solid foundation for restoring...HKP-99061Now: $14.96Was: $54.95 -
On Sale
HK MP5K Optic Mount
HKP HK Parts
Now: $62.44Was: $97.95HKP HK MP5K Optic Scope Rail The HKP optic scope rail is designed to be welded to the top of the receiver to provide a secure Picatinny optic mount for your MP5K. Includes sight mount to retain the...HKP-21852Now: $62.44Was: $97.95 -
On Sale
HK USC, UMP Receiver Optic Rail - USED
Now: $39.71Was: $95.00HK USC, UMP Receiver Optic Rail - USED HK USC, UMP top Receiver Rail with mounting hardware. Used in working condition. Includes: Rail 2 mountiHKP-19616-USEDNow: $39.71Was: $95.00 -
On Sale
B&T APC9, 40, 45 MBT Folding Stock - Includes Hydraulic Buffer
B&T Brugger & Thomet
Now: $562.50Was: $625.00B&T MBT folding stock for APC 9/40/45. Polymer stock and adapter with hydraulic buffer included. Features: 8-position length adjustment Telescoping cheek riser with 3-posHKP-21749Now: $562.50Was: $625.00 -
BT-20506, 20411 - GHM9, GHM45, KH9 Brace Conversion Kit
B&T Brugger & Thomet
$130.00Brace Conversion Kit for BT-20506/20411(GHM9/GHM45/KH9) Easily convert your B&T folding stock into a brace-compatible setup with this precision Brace Conversion Kit, designed for use with BT-20506...HKP-21736$130.00 -
On Sale
B&T TP9N Foregrip
B&T Brugger & Thomet
Now: $70.00Was: $100.00B&T TP9N Foregrip Factory B&T black foregrip for the TP9N firearm. Compatible With: B&T TP9NHKP-21719Now: $70.00Was: $100.00 -
HK MP5, SP5 Binary Trigger Group - Ambi - BFSIII - 9mm
FA Franklin Armory
$1,899.95Franklin Armory HK MP5 - BFSIII HK-C1 – Binary Trigger Group – Ambi 3 Position Housing 3 Position – pictogram – HK binary trigger groupHKP-19182-M$1,899.95