HK Rifle / SMG Parts
Elevate Your HK Rifle with Premium Parts – MP5, HK416, SP5, and More!
Enhance your HK rifle with top-notch parts and accessories. From HK MP5 and HK MP5K to HK SP5 and HK UMP or HK USC, we offer a vast selection. Discover high-quality magazines, binary triggers, stocks, grips, barrels, handguards, sights, and more for your firearm. Whether you own an HK416, HK SP5K, HK G36, or HK MP5 22, we have the Heckler and Koch rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.
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On Sale
HK MP5 Sling Swivel Circlip
H&K Heckler & Koch
Now: $4.95Was: $7.95Heckler and Koch Sling Swivel Circlip for HK MP5 Genuine Heckler and Koch sling swivel circlip designed for HK MP5 pattern firearms. This circlip secures the sling swivel assembly to the firearm and provides a correct factory-style attachment point for...HKP-99368Now: $4.95Was: $7.95 -
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 MR762 A4 Upper Receiver Kit - 16"
H&K Heckler & Koch
$2,449.95HK UPPER RECEIVER KIT MR762 A4 - 16" The MR762 A4 upper kit contains a complete upper receiver and barrel assembly. The closed system design significantly reduces malfunctions typically associated with direct-impingement gas systems, as hot carbon...HKP-22424$2,449.95 -
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 -
On Sale
HK MP5K 40/10 Stock or Brace Adapter - BLEMISHED
HKP HK Parts
Now: $84.09Was: $113.95HK MP5K 40/10 Brace/Stock Adapter - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Easily attach your favorite A2 style stock to your MP5K 40/10 with...HKP-21869-BNow: $84.09Was: $113.95 -
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
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 UMP Housing - .40 S&W - 30 Round - Magazine Housing ONLY - BLEMISHED
HKP HK Parts
Now: $29.95Was: $49.95HKP HK Parts HK UMP (.40 S&W) 30 Round Magazine Housing ONLY - BLEMISHED Priced for ONE Magazine Housing ONLY - Condition Varies by Unit - Each unit Sold INDIVIDUALLY ONLY 2 UNITS AVAILABLE - AS PICTURED MAGAZINE BODY ONLY COSMETICALLY BLEMISHED...HKP-17583-BL-BNow: $29.95Was: $49.95