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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Out Of Stock
HK MP5, MP5K Ambidextrous 0,1 Trigger Pack - 9mm
H&K Heckler & Koch
$0.00H&K MP5/K 9mm 2 Position 0,1 Ambidextrous Trigger Pack Introducing the popular FBI or 0,1 style ambidextrous trigger pack, now available in a fully German-manufactured configuration. This trigger pack is designed for use with ambidextrous grip...HKP-18209$0.00 -
HK MP5 Trigger Group - Navy 3 Position 0,1,Full
H&K Heckler & Koch
$2,499.95HK MP5 9mm 3 Position Navy (0,1,Full) Trigger Group Complete New Factory German manufacture brand new 3 position Navy ambidextrous F/A trigger group. Safe, semi, full controls. Each unit comes complete as shown as the trigger group comes from the factory...HKP-00160$2,499.95 -
Out Of Stock
Bolt Head Locking Roller -4, 7.96mm
HKP HK Parts
$8.95HKP HK Parts -4 7.96mm Undersized Roller HK spec under-sized roller that will fit all HK bolt heads including HK91, G3, HK33, HK53, HK93, HK94, MP5, SP89 all clones and the Cetme and its clones. An easy way to remember the size you need to order: Plus...HKP-17558$8.95 -
Out Of Stock
HK MP5 Bolt Carrier Group - Full Auto - Complete - IB DATE CODE
H&K Heckler & Koch
$0.00MP5 Full Auto Bolt Group Complete - IB DATE CODE-NEW OLD STOCK HK German 9mm MP5 full auto bolt carrier IB dated new old stock in 100% working order. These bolt groups are HK German MP5 Limited quantity available. Heckler & Koch bolt...HKP-00662$0.00 -
Out Of Stock
HK33, HK93 Cocking Tube with Hanger - USED
H&K Heckler & Koch
$88.95Heckler and Koch Cocking Tube with Hanger, Used for HK33 and HK93HKP-00710$88.95 -
Out Of Stock
HK33, HK53 Trigger Group - 0-1-25 SEF - Used
H&K Heckler & Koch
$999.95H&K 53/33 0-1-25 SEF Trigger Group-Used HK German 0-1-25 SEF trigger groups for 53/33 in used in good condition. These trigger groups are the ultimate choice to complete the factory correct look for a HK53. Given that the 0,1,25 trigger groups are no...HKP-00705$999.95 -
On Sale
HK416, MR556 Handguard - 11" - Extended - Quad Rail - BLEMISHED
H&K Heckler & Koch
Now: $332.95Was: $445.95HK416, MR556 Handguard - 11" - Extended - Quad Rail - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This drop-in unit offers two full inches in extra...HKP-01960-BNow: $332.95Was: $445.95 -
On Sale
Aimpoint Micro T1, T2 20.4mm Spacer - BLEMISHED
B&T Brugger & Thomet
Now: $64.95Was: $91.00Aimpoint Micro T1, T2 20.4mm Spacer 20.4mm riser for Aimpoint T1 and T2 optics. INSTALLATION MARKINGS COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Simply...HKP-21682-BNow: $64.95Was: $91.00 -
HK MP5, SP5, MP5K, SP5K Magazine Clamp - Tri-Lock - 9mm
HKP HK Parts
$39.95HKP HK MP5, SP5, MP5K, SP5K Tri-Lock Magazine Clamp 9mm Triple magazine clamp HK MP5 magazines. Secures three 9mm magazines together for faster reloads and segregating ammo types (FMJ/JHP/subsonic/supersonic). Compatible With: MP5, SP5 MP5K,...HKP-22799-M$39.95 -
On Sale
HK VP9 Railok™ Threaded Barrel Compensator - BLEMISHED
HKP HK Parts
Now: $91.95Was: $189.95HK VP9 Railok™ Threaded Barrel Compensator - BLEMISHED INSTALLATION MARKINGS COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The HK Parts Railok™...HKP-21163-BL-BNow: $91.95Was: $189.95 -
HK MP5Z German Police Trigger Group With Full Auto Lock Out Lever System - Rare
H&K Heckler & Koch
$879.95Heckler and Koch MP5Z German Police Trigger Group With Full Auto Lock Out Lever System - Rare The MP5Z was a special German police and commercial variant of the Heckler & Koch MP5, designed to adhere to strict German firearms laws that restrict...HKP-99792$879.95 -
HK MP5, SP5, MP5K, SP5K Flash Hider - 3-Lug - 9mm
HKP HK Parts
$99.95Heckler and Koch MP5 SP5 MP5K SP5K Flash Hider 3-Lug 9mm Flash hider designed for Heckler and Koch MP5, SP5, MP5K, and SP5K platforms in 9mm caliber. Used to reduce muzzle flash signature during firing. Compatible With: - MP5, SP5 - MP5K, SP5K - In-spec...HKP-22788$99.95