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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HK33, HK93 - Rear Sight Assembly Complete
H&K Heckler & Koch
$39.95HK 93 & HK33 Rear Sight Assembly Complete - Used This is the complete assembly as it comes from HK for a 556/223 firearm.HKP-00706$39.95 -
On Sale
HK Bayonet Adapter - W/ Screw and Hardware - German - USED
H&K Heckler & Koch
Now: $119.95Was: $149.95H&K German Bayonet Adapter - W/ Screw & Hardware - USED USED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. DOES NOT COME WITH HARDWARE HK German Bayonet Adapter W/ Screw...HKP-00021-USEDNow: $119.95Was: $149.95 -
HK MP5 Receiver Flat- 9mm
LSC
$239.95MP5 Receiver Flat - PTR/LSC New PTR 9mm Receiver Flat made on the original LSC tooling. This flat is considered by many to be the most sought-after HK flat available on the market and perfect for that HK custom build. This item is not considered an FFL...HKP-01431$239.95 -
HK USPC, P2000 Magazine Floorplate - .357 SIG / .40 S&W - 12 Round - Rubberized
H&K Heckler & Koch
$18.95HK P2000/USPC .40 S&W Rubberized Floor Plate - Black Newer HK German production upgraded rubberized floor plate with finger rest. The older style plates were prone to breakage when dropped, this is the latest style that HK introduced to solve this...HKP-01556$18.95 -
On Sale
Thread Protector - .40 S&W - Tactical - 14.5x1 LH
HKP HK Parts
Now: $11.95Was: $24.95HKP .40 S&W Tactical Thread Protector - Threaded 14.5x1 LH Fits all HK barrels that are threaded 14.5x1 LH. This is the correct thread protector for all the HK .40 S&W metric threaded barrels. This will also fit non HK related barrels as well...HKP-00298Now: $11.95Was: $24.95 -
HK416, MR556 Takedown Pin - Front - A1 Style
H&K Heckler & Koch
$64.95H&K HK MR556 Front Lower Receiver Locking Pin With Spring Loaded Detent This part is the front (large) takedown pin with ball detent and locking mechanism installed. The idea behind this type of system is to decrease the movement of the upper and...HKP-02663$64.95 -
HK91, G3, HK33, HK53, HK93 Muzzle Protector Cap
H&K Heckler & Koch
$5.95H&K 93/53/33 & G3/91 5.56/.223 & 7.62x51/.308 Muzzle Protector Cap This cap covers the barrel end or flash hider to prevent debris, water, etc., from entering the barrel. The cap can be removed by hand or when the first round is fired with...HKP-13959$5.95 -
HK -6 Roller For Bolt Head 7.94mm - Under-sized
H&K Heckler & Koch
$27.95H&K -6 Roller For Bolt Head 7.94mm - Under-sized New HK German -6 roller that measures 7.94mm. For use with all HK 90 series firearms. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way...HKP-00342$27.95 -
Out Of Stock
HK91, G3 Barrel - 7.62 / .308 - 17.7" - Threaded 15x1 RH
RCM
$264.95RCM HK G3/91 (7.62x51/.308) Barrel - Threaded 15x1 RH Made by RCM to the highest tolerances and finest material available. Perfect for that HK build or to replace that shot-out barrel. Each barrel counts as 1 US-compliant part as a bonus. These are...HKP-01136$264.95 -
HK VP9SK, P30SK, P2000SK Magazine Locking Plate - 9mm
H&K Heckler & Koch
$8.95HK P2000SK, VP9SK & P30SK 9mm 10 Round Magazine Locking Plate For Magazine Works with the P2000SK, VP9SK and P30SK sub compact (SK) magazine models only. Compatible With: HK P30 SK HK P2000 SK HK VP9SKHKP-16650$8.95 -
HK 3 Round Count Burst Wheel for 4 Position Trigger Packs
H&K Heckler & Koch
$127.95H&K 3 Round Count Burst Wheel For 4 Position Trigger PacksHKP-01639$127.95 -
HK416, MR556 Firing Pin
H&K Heckler & Koch
$54.95H&K HK MR556/416 Firing Pin New HK German manufactured. This is a great item to have on hand as the firing pin is one of the most abused components in the HK MR556 and HK 416 weapon systems. Compatible With: HK MR556 HK 416 HK CR556 HK...HKP-00045$54.95