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 Floorplate and Locking Plate Set - 9mm - 12 Round - Extended
H&K Heckler & Koch
$29.95H&K HK CC9 Extended Floor Plate & Locking Plate Set Factory HK replacement extended floor plate and locking plate and spring set for the CC9 magazine. The best option to have as a back up for used and worn out magazines. Compatible...HKP-22101$29.95 -
HK416, MR556 Stabilizing Brace - SBA5
SB Tactical
$123.95SB Tactical SBA5 Brace The SBA5 Pistol Stabilizing Brace is 5-position adjustable and designed for all platforms capable of accepting a mil-spec carbine receiver extension. Featuring an integral, ambidextrous QD sling socket and an arm cuff based on the...HKP-21794-M$123.95 -
HK21, FMP21 Teardrop Rail Set - T-Rail
HKP HK Parts
$197.95HKP HK21/FMP21 Teardrop Rail Set HK teardrop style reinforcement rails. The ultimate choice for period correct builds. Expertly crafted in the USA from high-quality 4140 steel, these ready-to-weld rails are engineered for precision and durability...HKP-21671$197.95 -
Out Of Stock
HK MP5, MP5K Telescopic Buttpad
B&T Brugger & Thomet
$190.00B&T HK MP5, MP5K Telescopic Buttpad - Brace Conversion B&T replacement stock buttpad. Also used to convert B&T's telescopic brace to a stock (BT-200601) Compatible With: HK MP5 HK MP5K MAC-5 clones may require custom fitment...HKP-21384$190.00 -
On Sale
HK416, MR556 Flash Hider - A5 4-Prong Style - Threaded 1/2x28
HKP HK Parts
Now: $19.95Was: $39.95HKP (5.56x.223) A5 4 Prong Flash Hider - Threaded 1/2x28 Made from ordnance grade steel, heat treated, and nitrided for longevity. Machined correctly to reduce tuning fork noise. Counts as one US made compliant part. Available exclusively at HK Parts...HKP-21275Now: $19.95Was: $39.95 -
On Sale
HK Rifle Cleaning Kit - Soft Pouch - 7.62 / .308 / .30
Now: $9.95Was: $14.95Cleaning Kit - Soft Pouch NOS (new old stock) soft pouch cleaning kit for the .30 caliber family of firearms. Includes the following: Soft pouch Wicks and oiler canister (empty) Pull-through tubing 2 sets of brushesHKP-21274Now: $9.95Was: $14.95 -
HK UMP 30 Round .40 Magazine - LEO Marked
H&K Heckler & Koch
$64.9530 Round Magazine - LEO Marked - Used - UMP .40 S/W Each 30 round magazine will fit all HK UMP .40 caliber carbines, SMG's as well as the USC-UMP .40 caliber conversions. Used in good condition. The perfect option for those that like to collect LEO...HKP-20651$64.95 -
HK VP9, VP40 Grip Wrap for Medium Backstraps - Granulate
Talon Grip
$19.99TALON Grip - H&K VP9, VP40 - Granulate Black - Medium Backstrap TALON grips are textured, stick-on gun grips that help you get a secure hold on your firearm improving performance, safety, and confidence so you maintain control. Installation is quick...HKP-20247$19.99 -
Bore Boss Pull-Through Bore Cleaner - 5.56 / .223
Real Avid
$10.95Real Avid Bore Boss Pull-Through Bore Cleaner - 5.56mm/.223 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...HKP-19402$10.95 -
HK USPC .40 S&W Recoil Rod Assembly
H&K Heckler & Koch
$89.95Recoil Spring Guide Rod Assembly Complete For The HK USP Compact 40 Cal & .357 SIG New HK German factory part. This is a great spare or replacement item to have on hand. Compatible With: HK USP Compact 40 Cal HK USP Compact .357 SIGHKP-01479$89.95 -
Out Of Stock
HK416, MR556, HK417, MR762 Pistol Grip Screw
H&K Heckler & Koch
$9.95H&K HK MR556/MR762/416/417 Pistol Grip Screw This is the screw used to retail all battle grips/pistol grips on the HK and standard AR15 and M16 firearms. Compatible With: HK MR556 HK416 HK MR762 HK417HKP-02679$9.95 -
Out Of Stock
HK53, HK51 Handguard - Full Length
H&K Heckler & Koch
$59.95H&K HK53/HK51 Handguard - Full Length H&K German manufactured HK51 and HK53 polymer handguard. This handguard is the proper length to cover the extended portion of the trunnion found on the HK53 and HK51 style of firearms. Compatible...HKP-00468$59.95