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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HK P7 M8, P7 M13 Maintenance Manual - RARE
H&K Heckler & Koch
$489.95Heckler and Koch Maintenance and Repair Manual for HK P7 M8, P7 M13 Pistols - RARE Original Heckler and Koch maintenance manual covering the P7 M8 and P7 M13 pistols. This factory-issued manual provides detailed technical guidance on maintenance and...HKP-99362$489.95 -
Out Of Stock
HK21, HK23, HK11 Flash Hider - Threaded 15x1 RH
HKP HK Parts
$27.95HKP HK23, HK21, HK11 Flash Hider - Threaded 15x1 RH Steel flash hider designed for HK23, HK21, and HK11 pattern firearms and is threaded 15x1 right hand. Helps reduce visible muzzle flash while maintaining an original-style HK profile. Compatible...HKP-22484$27.95 -
HK VP9F Compensator Replacement Rail Set - MOD 1
HKP HK Parts
$28.95HKP HK VP9F MOD 1 Compensator Replacement Rail Set Replacement Picatinny rail and smooth plate inserts with hardware for the MOD 1 compensator. Compatible With: VP9FHKP-22432$28.95 -
HK416, MR556 Pistol Grip - Walnut
JMK
$78.95JMK HK416, MR556 pistol grip - Walnut The pistol grip by JMK is made from CNC-machined black walnut. After machining, the grip is dyed to ensure a uniform color and is finished with a catalyzed satin seal. These grips are compatible with any firearm that...HKP-22400-M$78.95 -
HK MR556, MR223 Upper Receiver - BLEMISHED
H&K Heckler & Koch
$695.95HK MR556, MR223 Upper Receiver - BLEMISHED ONLY 1 UNIT AVAILABLE - AS PICTURED MISSING FORWARD ASSIST AND GAS PISTON COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE...HKP-16950-BL-B$695.95 -
Picatinny Optic Mount Shield - Aimpoint T1, H1 - S.W.O.R.D.S
Frost Defense
$239.95Aimpoint T-1, H-1 Optic Mount - S.W.O.R.D.S - Picatinny Mount The S.W.O.R.D.S Enhanced optic shield designed for Aimpoint T1, H1 red dot sights. This patent-pending mount system provides robust glare and impact protection by surrounding the ocular and...HKP-22340-M$239.95 -
On Sale
HK21 Barrel - 17.7" - Threaded 15X1 - 7.62x51 / .308
Michaels Machines
Now: $994.95Was: $1,189.95MM HK21 Barrel - 17.7" - CHF Michael's Machines HK21 barrels are crafted in the US from 41V50 CHF blanks and fully nitrided for optimal corrosion resistance. Barrels come stripped, requiring a flash hider/muzzle device and barrel handle assembly (all...HKP-22332Now: $994.95Was: $1,189.95 -
On Sale
Argentinian Slide Colt Sistema 1927 - (M1911) - BLEMISHED
Now: $144.95Was: $349.95Argentinian Slide Colt Sistema 1927 - (M1911) - BLEMISHED ONLY 1 UNIT AVAILABLE - AS PICTURED CRACKED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Original...HKP-19778-BNow: $144.95Was: $349.95 -
On Sale
HK91 Handguard - Carbine Length - Keymod - BLEMISHED
AIM
Now: $48.95Was: $69.95AIM HK 91 Carbine Length Handguard - Keymod - BLEMISHED ONLY 1 UNIT AVAILABLE - AS PICTURED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This sleek streamlined...HKP-18178-BNow: $48.95Was: $69.95 -
HK416, MR556 Flash Hider - Cloak - Threaded 1/2x28
Strike Industries
$44.95Strike Industries HK416/MR556 Cloak Flash Hider - 1/2x28 Strike Industries Cloak flash hider offers a compact, efficient design that disperses gas flow to minimize visible flash, especially in low light. It reduces muzzle flash to preserve night vision,...HKP-22260$44.95 -
On Sale
HK94 Metal Trigger Housing - SURPLUS
HKP HK Parts
Now: $199.95Was: $259.95HK94 Metal Trigger Housing - SURPLUS ONLY 1 UNIT AVAILABLE - AS PICTURED German-made HK94 metal trigger housing with a surplus black grip. Includes: 0,1 metal grip frame Factory German surplus black pistol grip Compatible With: HK94 THIS CLOSEOUT...HKP-99423Now: $199.95Was: $259.95 -
On Sale
HK Mark 23 Barrel - Threaded 16x1 RH - USED
H&K Heckler & Koch
Now: $449.95Was: $599.95H&K Mark 23 .45 ACP Barrel - Threaded 16x1 RH - USED 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...HKP-01038-USEDNow: $449.95Was: $599.95