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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HK417, MR762, G28 Receiver End Plate
H&K Heckler & Koch
$24.95H&K HK MR762/417/G28 Receiver End Plate New HK German factory. Compatible With: HK MR762 HK 417 HK G28HKP-16610$24.95 -
Out Of Stock
HK45 Recoil Rod Absorber Bushing
H&K Heckler & Koch
$9.95HK 45 Recoil Rod Absorber Bushing This part is a common wear and replacement part and a must-have for spare parts. Compatible With: HK45 HK45 TacticalHKP-02269$9.95 -
HK Mark 23 Barrel - .45 ACP - Threaded 16x1 RH
H&K Heckler & Koch
$589.95H&K Mark 23 .45 ACP Barrel - Threaded 16x1 RH A great replacement item for a now out-of-production pistol. New HK German mark 23 barrel threaded with the factory correct 16x1 RH thread. Get that replacement or factory new spare barrel while they are...HKP-01038$589.95 -
On Sale
Barrel Bore Cleaning Brush - .40 S&W
USA
Now: $1.45Was: $1.95.40 S&W Barrel Bore Cleaning Brush This brush is a must-have item to clean the barrel effectively, and it is compatible with all standard 8-32 threaded cleaning rods (universal/most common thread). We offer a large variety of long-lasting...HKP-02759Now: $1.45Was: $1.95 -
Out Of Stock
HK45C, USPC Firing Pin
H&K Heckler & Koch
$57.95H&K HK USPC/45C Firing Pin A great spare part to have on hand for wear and breakage parts. A factory German HK OEM part. Compatible With: HK45 Compact HK45C Tactical HK USP Compact 45 HK USPC Tactical 45HKP-01288$57.95 -
On Sale
HK416, MR556 Barrel Nut - Titanium
HKP HK Parts
Now: $78.95Was: $99.95Titanium HK MR556, HK 416 Barrel Nut Or Socket For Barrel A must have repair and replacement part for removal or when you have any work done to your barrel as the barrel nut may become damaged in the removal and installation processes. Made in the USA...HKP-17275Now: $78.95Was: $99.95 -
Out Of Stock
HK G36K Handguard - Quad Rail
B&T Brugger & Thomet
$329.95Swiss Made B&T Quad-Rail (4 Sided Picatinny Rail) Handguard For HK G36K Aluminum version with rail cover and sling swivel. The B&T offering is the finest railed hand guard available for the HK G36K or SL8 conversions to G36K spec.B&T...HKP-16895$329.95 -
HK UMP, USC, G36, SL8 Safety - Right Side 0,1
H&K Heckler & Koch
$9.95Safe, Semi 0,1 Only HK UMP, USC, G36, & SL8 Right Side Safety Control Lever Constructed from durable black polymer, this factory original part from HK is made in Germany and specifically designed for H&K SL8, G36, and USC rifle. The lever...HKP-01874$9.95 -
Out Of Stock
HK21E, HK23E E Clip For Carry Handle - 7.62x51 / .308 - 5.56 / .223
H&K Heckler & Koch
$9.95HK German "E" Clip For Carry Handle For HK21 & HK23E folding carry handles. Clips are sold individually.HKP-00579$9.95 -
HK90 Series Cocking Tube Extrusion - 12" Section
H&K Heckler & Koch
$54.95H&K Factory Cocking Tube Extrusion 12" Section HK cocking tube section is perfect for custom HK cocking tube projects. Overall length is 12" long. All steel and ready for that custom project or custom build. Perfect for custom cocking tube...HKP-13487$54.95 -
On Sale
HK MP5, AP5 Magazine Spring - 30 Round
MKE
Now: $4.95Was: $5.95MKE 30 round magazine spring for HK MP5- Turkey The MP5 30-round spring is a must-have replacement spring for all HK MP5 curved magazines. Compatible With: MP5, MP5K SP5, SP5K AP5HKP-22473Now: $4.95Was: $5.95 -
HK CC9 Magazine Release and Chassis Pin
H&K Heckler & Koch
$5.95Heckler and Koch Magazine Release and Chassis Pin for HK CC9 Made by HK, this authentic pin for the HK CC9 secures magazine release and chassis components within the frame. Compatible With: CC9HKP-22112$5.95