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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On Sale
HK MP5K, SP89 Handguard - Low-Profile
PTR
$40.13 - $62.95PTR HK MP5K, SP89 9mm Tactical Low-Profile Handguard The modular tactical forearm from PTR accommodates 2" rails on either site or bottom for mounting accessories. Made from aircraft-grade aluminum...HKP-14539-M$40.13 - $62.95 -
HK MP5, HK94, SP5K Rear Sight Drum and Base
H&K Heckler & Koch
$109.95Heckler and Koch Rear Sight Drum and Base for HK MP5, HK94, and HK SP5K This is an HK German part that's a great upgrade for the SP5, SP5K, and SP89 or MP5K models. We highly suggest adding the...HKP-00073$109.95 -
HK MP5, HK90 Series Hammer Spring Bushing - Burst
H&K Heckler & Koch
$19.9990 Series Hammer Spring Bushing For Burst Trigger Packs This part will fit both two and three-round burst trigger packs.HKP-02398$19.99 -
HK MP5, SP5 Handguard - Slimline Style
HKP HK Parts
$22.95HKP MP5, SP5 Slimline Handguard Once a rare find after HK discontinued it, the classic slimline handguard returns with a fresh, U.S-made update. Specially engineered for the MP5, SP5, and compatible...HKP-21471$22.95 -
On Sale
Now: $116.96Was: $129.95 -
On Sale
HK91, G3 Cocking Tube with Hanger - Ribbed - USED
H&K Heckler & Koch
Now: $20.96Was: $34.95HK German HK G3, HK91 Ribbed Cocking Tube With Hanger Installed - Used VARYING CONDITION SHOWN - SOLD INDIVIDUALLY DENTED. REFER TO PICTURES <HKP-00719-USEDNow: $20.96Was: $34.95 -
HK USPC, HK45, HK45C Magazine Follower
HKP HK Parts
$5.95HKP HK Parts Magazine Follower for HK USPC, HK45, and HK45C A great U.S.-made spare to have on hand, as the follower is a wear-and-replacement part. Do not forget to order spare magazine springs...HKP-22500-M$5.95 -
HK USP, Mark 23 Magazine Follower - .45 ACP
HKP HK Parts
$5.95HKP SOCOM Magazine Follower for USP45 and Mark 23 Magazines HKP SOCOM magazine follower for USP45 and Mark 23 magazines. Made in the USA, this follower is an ideal replacement for worn magazine...HKP-22499-M$5.95 -
On Sale
HK MP5, MKE AP5 Bolt Head - Stripped - GUNSMITH SPECIAL
Other
Now: $52.46Was: $149.95Turkish Contract HK MP5, MKE AP5 Stripped Bolt Head - GUNSMITH SPECIAL VARYING CONDITION SHOWN - SOLD INDIVIDUALLY Please Note: Will require work beHKP-99372Now: $52.46Was: $149.95 -
HK MP5, MP5K Raised Optic Mount with Burris FastFire - 3.5 MOA
HKP HK Parts / Burris
$509.95HK MP5 Burris FastFire 3.5 MOA Red Dot with Raised Optic Mount The HKP Raised optic mount was designed to elevate the sight to a height that is both comfortable and easy to view, while retaining an...HKP-22398-M$509.95 -
On Sale
HK45C Railok™ Threaded Barrel Compensator - BLEMISHED
HKP HK Parts
Now: $72.71Was: $189.95HKP HK45C Railok™ Threaded Barrel Compensator - BLEMISHED ACTUAL UNIT MAY HAVE MARKINGS THAT DIFFER SLIGHTLY FROM THE ONE PICTURED. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD ASHKP-21264-BNow: $72.71Was: $189.95 -
HK MP5, MP5K Barrel Flute Cleaning Brush - .40 S&W, 10mm
HKP HK Parts
$24.95HKP HK Parts Cleaning Brush - Barrel Flute - 10mm / .40 S&W This is a must-have brush to keep the flute clean and the firearm running the way it should. Compatible With: MP5 10mHKP-22318$24.95