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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HK416, MR556, MR762 Trigger Guard Assembly
H&K Heckler & Koch
$52.95H&K HK MR556/MR762/416 Trigger Guard Assembly New HK German part that protects the trigger from an accidental discharge. Compatible With: HK MR556 HK 416HKP-02545$52.95 -
HK91, G3 Stock - AR15 Style - Complete Assembly
PTR
$274.95PTR HK 91/G3 (7.62x51/.308) AR15 Style Magpul Stock - Complete Assembly AR15/M16 retractable stock combo set up for use on an HK91, G3 & PTR91 style of rifles. This is a perfect compliment for those...HKP-15614$274.95 -
On Sale
HK MP5 Reverse Stretch Recoil Assembly - 9mm
Now: $34.16Was: $37.95Complete Recoil Rod Assembly For The MP5 Reverse Stretch New US made MP5 reverse stretch or MP5 Full size compact recoil rod assembly complete micro polished and built of the finest materials to make...HKP-16580Now: $34.16Was: $37.95 -
HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - LEO Marked
H&K Heckler & Koch
$159.95H&K HK MP5/MP5K 30 Round - LEO Marked Magazine - TiN/CRN Coated Elevate your collection with our TiN coated factory Heckler & Koch magazines. Each magazine begins as a new German 30-round 9mm mag...HKP-21792-M$159.95 -
On Sale
HK MP5K, SP5K Rear Push Pin Weldment Set
USA
Now: $13.46Was: $14.95HK MP5K, SP5K Rear Push Pin Weldment Set This weldment set is the 2 pieces needed for the rear of the flat/receiver that holds the stock/brace or end cap in place. CNC machined from weldable steel...HKP-19632Now: $13.46Was: $14.95 -
Out Of Stock
HK USP9 Compact Recoil Spring with Captive Spring
H&K Heckler & Koch
$113.95Heckler and Koch Recoil Spring with Buffer Assembly Complete or USP Compact 9mm Great spare or replacement item to have as a spare. This is the new factory part for all HK USP9C Pistols.HKP-01158$113.95 -
HK MP5K Trigger Group - Burst 0,1,3,F
H&K Heckler & Koch
$3,299.95Heckler and Koch HK MP5K 4 Position (0,1,3,F) Burst Trigger Group New HK German factory fresh 9mm MP5K 4 position burst trigger group. Each unit comes just as it comes from the factory in Germany and...HKP-00403$3,299.95 -
HK MP5, MP5K Bolt Carrier Stop Pin and Axle Set
H&K Heckler & Koch
$14.95MP5 & MP5K Stop Pin, Axle Set For Bolt Carrier Each set is designed to keep the locking piece clocked at the correct location and in place when the stop axle and pin set are installed in the carrier...HKP-02558$14.95 -
On Sale
HK MP5, MP5K, HK33 Optic View Front Sight Tower
Now: $49.46Was: $54.95Billeted One Piece "Optic View" Front Sight Tower HK front sight tower machined as one solid seamless billeted piece. The finest front sight tower that has been machined to allow the use of the...HKP-17879Now: $49.46Was: $54.95 -
MLOK Handstop Set - Bikini BHS
Strike Industries
$13.95Bikini Hand Stop (2-pack) Strike Industries The Strike Industries Bikini Hand Stop (BHS) gives the shooter increased ergonomics and control of the weapon. The hand stop is made from durable and...HKP-20057$13.95 -
On Sale
HK P30L Tactical Barrel - 9mm - 5.06" - Threaded 13.5x1 LH
RCM
Now: $202.50Was: $225.00RCM HK P30L 9mm Tactical Barrel - Threaded 13.5x1 LH Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest...HKP-16258Now: $202.50Was: $225.00 -
On Sale
HK P30, P30L, P2000 Catch
Now: $48.56Was: $53.95Catch - HK P30, P30L, P2000 New HK German Catch Assembly for all P Series of pistols. Compatible With: HK P30HKP-15434Now: $48.56Was: $53.95