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 UMP, G36 3 Position Selector - Right
HKP HK Parts
$8.95HKP HK UMP, G36 3 Position Selector - Right HK UMP & G36 right safety selector lever for all 3 position HK UMP & G36 lowers only.HKP-20179$8.95 -
Universal Belt Holster - QB Ambidextrous
Comp-Tac
$54.95QB Belt Holster - Ambidextrous - Universal - VP9, VP40, P30, USP, P2000, HK45 Finally- one holster to cover your whole HK Collection. Comp-Tac spent years researching the dimensional difference between various HK pistols and designed a precision fitted,...HKP-19853$54.95 -
Out Of Stock
Gear Head Works Tailhook Mod 1 - FDE
Gear Head Works
$159.95Gear Head Works Tailhook Mod 1 - FDE We start with a solid piece of billet aluminum and meticulously machine every aspect for a part that is as nice to look at as it is to use. This version clamps to pistol buffer tubes or adapter spuds ranging from 1...HKP-19541$159.95 -
Bore Boss Pull-Through Bore Cleaner - .44 / .45 ACP
Real Avid
$12.95Real Avid Bore Boss Pull-Through Bore Cleaner - .44/.45 From the barrel of innovation comes the ultra-compact Bore Boss, the first-ever self-storing, easy-feeding, clean-pulling, field-ready, hassle-free, pure-genius bore cleaner. The single-piece cable...HKP-19401$12.95 -
HK USP Barrel - 9mm - 4.25"
H&K Heckler & Koch
$270.95H&K USP 9mm Full-Size Barrel HK factory German HK cold hammer forged barrel. New date-coded and serialized barrel. Compatible With: USP 9mm USP 9mm TacticalHKP-01527$270.95 -
HK USP Slide Release Lever
H&K Heckler & Koch
$59.95HK USP Slide Release Lever Compatible With All USP Full Size Pistols & All USP Full Size Variants Below: USP 45 USP 40 USP 9mm USP Tactical (all calibers) USP Expert (all calibers) USP Elite (all calibers)HKP-01674$59.95 -
HK416, MR556, MR762 Extractor Spring Buffer
H&K Heckler & Koch
$14.95H&K HK MR556/MR762/416 Extractor Spring Buffer This buffer fits inside the extractor spring in the extractor pocked of the bolt. This item is a high wear item and a spare would be highly advised. Compatible With: HK MR556 HK 416 HK MR762HKP-00051$14.95 -
Out Of Stock
HK416, MR556 Handguard - 9.75" Quad Rail - RAL8000 - Picatinny
H&K Heckler & Koch
$489.95H&K HK MR556/416 Handguard Picatinny Quad Rail - 9.75" - RAL 8K Handguard with Picatinny quad rail profile on 3, 6 and 9 o'clock, STANAG 4694 profile on 12 o'clock. New HK German. Compatible With: All 14.5", 16.5", & 20" models HK MR556 HK...HKP-18553$489.95 -
HK21E, HK11E Extractor Spring
H&K Heckler & Koch
$24.95HK21E & 11E Factory Extractor Spring Made by HK Germany for all HK21E's and 11E's.HKP-00815$24.95 -
HK MP5K, SP89, SP5K Cocking Tube - 9mm
HKP HK Parts
$84.95MP5K, SP89, MP5K-N, MP5K-PDW Cocking Tube - USA This part is built to exact HK German specifications. The only MP5K cocking tube on the market that is a duplicate from factory HK German prints and specs. Compatible With: HK MP5K, SP89,...HKP-01838$84.95 -
HK MP5K Trunnion - 9mm
HKP HK Parts
$57.95HK MP5K Trunnion - USA US made to exact factory HK specifications for the HK MP5K type builds. Machined completely from ordnance grade steel and heat treated to factory specs. These are the best USA made trunnions on the market. Machined to HK spec...HKP-17964$57.95 -
HK MP5K, SP89 Cocking Tube - 9mm - Support Set
HKP HK Parts
$129.95HKP MP5K/SP89/SP5K 9mm Cocking Tube & Support Set Specifications: Construction: Hard Coated Titanium Color: Matte Black Weight: 1.7 oz. Compatible With: HK MP5K HK SP89 HK SP5K MP5 Reverse stretch builds, clones, or other custom buildsHKP-00184$129.95