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
HK416 A1, MR556 A1 Barrel Nut
Nefarious Arms
Now: $39.95Was: $49.95Nefarious Arms HK MR556 A1/416 A1 Barrel Nut Whether replacing a barrel nut or sourcing the best parts for your build, the Nefarious MR556/416 barrel nut is an excellent option. Meticulously crafted in the US to the highest quality standards...HKP-22279Now: $39.95Was: $49.95 -
On Sale
HK91, G3 Sniper Trigger Group - AC Unity Grip - Match Trigger
HKP HK Parts
Now: $514.95Was: $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 and aesthetically pleasing build. Featuring a robust...HKP-22251Now: $514.95Was: $644.85 -
On Sale
HKP 2-Point Leather Sling - Brown - BLEMISHED
HKP HK Parts
Now: $32.95Was: $49.95HKP 2 Point Leather Sling - Brown - BLEMISHED ONLY 5 UNITS AVAILABLE - AS PICTURED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. These new HK Parts 2-point...HKP-20162-BNow: $32.95Was: $49.95 -
Out Of Stock
HK416 Upper Receiver Kit - 10.4" - Date Coded - OTB - USED
H&K Heckler & Koch
$3,789.95H&K 416 10.4" Date Coded OTB Upper Parts Kit - USED Genuine HK 416 10.4″ date coded used upper parts kit with a factory German 10.4″ barrel with the new Over The Beach (OTB) features (vented gas block, quad rail forearm). Finish...HKP-22193-M$3,789.95 -
On Sale
HK VP9, VP40 Competition Magwell Extension - Purple - BLEMISHED
HKP HK Parts
Now: $69.95Was: $129.95HKP HK VP9, VP40 Competition Magwell Extension - Purple - BLEMISHED Our 2-piece, steel insert competition VP9/VP40 extended flared magwell is CNC made from heat treated 4140 billet nitrided steel. The upper portion of the magwell is machined from...HKP-21079-PU-BNow: $69.95Was: $129.95 -
HK CC9 Firing Pin Safety
H&K Heckler & Koch
$18.95H&K CC9 Firing Pin Safety Made by H&K, the firing pin safety for the CC9 blocks firing pin movement until the trigger is pulled. Compatible With: HK CC9HKP-22133$18.95 -
HK VP9, VP40 Slide Release Lever - Anti-Skid - Right
H&K Heckler & Koch
$67.95H&K VP Anti-Skid Slide Release Lever - Right Right side extended slide release lever. Can be combined with 260431, 50254706, 50239395. Compatible with: VP9 VP9L VP9 Match VP9 Tactical VP9SK VP9A1 VP40HKP-22012$67.95 -
HK MR556, MR762 Buttstock Ribbon
H&K Heckler & Koch
$53.95H&K MR556A1, MR762A1 Ribbon for Buttstock Factory HK ribbon used for sling attachment. Can also be used on the E1 Buttstock. Compatible With: HK MR556/416 MR762/417HKP-22002$53.95 -
HK VP9 #6 Acro Adapter Plate
H&K Heckler & Koch
$56.99H&K VP9OR #6 Acro Adapter Plate Optic plate #6 for ACRO optic. Compatible with: VP9 VP9A1 VP9SK VP9 Match VP9 TacticalHKP-22001$56.99 -
HK P30S, P30SK Safety Lever Detent Pin
H&K Heckler & Koch
$16.95H&K P30S/P30SK Safety Lever Detent Pin Detent pin for the manual safety mechanism on P30S and P30SK models. Compatible With: HK P30S HK P30SKHKP-21988$16.95 -
On Sale
HK416, MR556 Barrel - 5.56 - 10.4" - Threaded 1/2"x28 - A5 Profile
Nefarious Arms
Now: $504.95Was: $594.95Nefarious Arms HK MR556416 10.4" A5 Barrel An expertly crafted 10.4" barrel designed for the HK MR556 and 416 platforms. Featuring the A5 profile, this barrel balances durability and weight, making it an excellent choice for both tactical and...HKP-21873Now: $504.95Was: $594.95 -
On Sale
CQT FX Simunition Conversion Kit for MP5 - 9mm Blue - USED
Simunition
Now: $269.95Was: $319.95CQT FX Simunition Conversion Kit for MP5 - 9mm - Blue - USED SHADES OF BLUE MAY VARY The CQT FX Simunition conversion kit is in good condition and comes with original factory packaging. This is your chance to grab one of the last...HKP-99054Now: $269.95Was: $319.95