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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HK CC9 Magazine Spring - 10 Round
H&K Heckler & Koch
$5.95Heckler and Koch 10-Round Magazine Spring for HK CC9 Genuine 10-round HK CC9 magazine spring, made from steel for reliable feeding and long service life. Compatible With: CC9HKP-22151$5.95 -
HK CC9 Trigger Pin
H&K Heckler & Koch
$5.95H&K CC9 Trigger Pin This genuine H&K CC9 trigger pin secures the trigger assembly within the frame. Compatible With: HK CC9HKP-22123$5.95 -
HK CC9 Sear Pin
H&K Heckler & Koch
$5.95H&K CC9 Sear Pin Made in Germany by H&K, this sear pin for the CC9 pistol secures the sear within the fire control assembly. Compatible With: HK CC9HKP-22119$5.95 -
HK CC9 Sear
H&K Heckler & Koch
$19.95H&K CC9 Sear Made in Germany, this sear for the CC9 pistol engages and releases the hammer during the firing cycle. Compatible With: HK CC9HKP-22116$19.95 -
HK MG3 50 Round Assault Drum
H&K Heckler & Koch
$27.95H&K MG3 50 Round Assault Drum H&K manufactured 50-round drum for the MG3. Unissued, but may have light marks or dust from long-term storage. Clips onto MG3 feed trays. With minor modifications, these can be run on HK21, HK21E, and HK51B setups...HKP-22090$27.95 -
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. Each commercial buffer tube features built-in...HKP-22086$192.95 -
HK USPC Compensator - MOD 1 - .45 ACP - Threaded Barrel
HKP HK Parts
$179.95HK Parts MOD 1 Compensator for Threaded Barrel: H&K USPC .45 ACP The HK Parts MOD 1 compensator perfectly blends form and function, setting a new standard in muzzle control. Experience a significant reduction in muzzle flip and recoil, allowing you...HKP-22085$179.95 -
HK33, HK53, HK93 SBA5 Pistol Stabilizing Brace and Adapter
SB Tactical
$319.95SB Tactical HK 93/33/53 SBA5 Pistol Stabilizing Brace with Adapter SB Tactical combined with our HK 93/33/53 end cap creates a true drop-in brace, perfect for those seeking the flexibility that the SBA5 pistol stabilizing brace offers. With a 5-position...HKP-22069-M$319.95 -
HK91, G3, HK91, HK33, HK53, HK93 Paddle Mag Release - Anti-Rattle - USED
H&K Heckler & Koch
$42.95H&K G3/91/93/53/33 Anti-Rattle Mag Release - USED This is a used German anti-rattle paddle mag release for installation on all H&K .223 and .308 rifles. Compatible With: HK G3/91 HK 51 HK 93/53/33 HK PSG-1 HK MSG-90 PTR91 Clones and other custom...HKP-22061$42.95 -
HK VTAC-MK2 Sling - Coyote Tan
H&K Heckler & Koch
$62.95H&K VTAC-MK2 Sling - Coyote Tan - Two Point Sling The Viking Tactics Padded Sling features a closed cell foam shoulder strap and durable resin treated nylon. Its quick adjust design allows fast length changes from any position. The friction resistant...HKP-22008$62.95 -
On Sale
HK Incomplete Ambidextrous Selector Axle - Gunsmith Special
HKP HK Parts
Now: $6.95Was: $14.95HKP Incomplete Ambidextrous Selector Axle - Gunsmith Special U.S.-made selector lever. Incomplete part for ambidextrous setups. Please Note: Will require work before being functional. HKP recommends the work be performed by a professional gunsmith...HKP-99135Now: $6.95Was: $14.95 -
On Sale
HK VP40 Gen 1 Rail Mount Compensator - Blue - Non-Threaded - BLEMISHED
HKP HK Parts
Now: $93.95Was: $189.95HKP HK VP40 Gen 1 Rail Mount Compensator - Blue - Non-Threaded - BLEMISHED DOES NOT INCLUDE ALLEN WRENCH COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The HK...HKP-99082Now: $93.95Was: $189.95