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 SL8, G36, Sight Rail - Incomplete - BLEMISHED
H&K Heckler & Koch
Now: $389.95Was: $598.95Heckler and Koch HK SL8, G36, Sight Rail - BLEMISHED VARYING CONDITION SHOWN - SOLD INDIVIDUALY DOES NOT INCLUDE FRONT AND REAR SIGHTS MISSING SCREWS - NO HARDWARE COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT...HKP-17718-IN-BNow: $389.95Was: $598.95 -
On Sale
HK SL8, G36, Sight Rail - Front and Rear Sights - BLEMISHED
H&K Heckler & Koch
Now: $449.95Was: $598.95Heckler and Koch HK SL8, G36, Sight Rail - BLEMISHED ONLY 2 UNITS AVAILABLE - VARYING CONDITION SHOWN - SOLD INDIVIDUALY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE...HKP-17718-BNow: $449.95Was: $598.95 -
Muzzle Brake - 5.56 and .308 - Threaded 5/8x24 RH
HKP HK Parts
$29.95HKP muzzle brake threaded 5/8x24 RH for 5.56/.223 and 7.62x51/.308 firearms This HKP muzzle brake is manufactured in the USA to HK specifications and is designed for use on 5.56 and .308 rifles. It features a partially milled birdcage-style design...HKP-22508$29.95 -
HK UMP, USC Recoil Rod Spring - Enhanced
HKP HK Parts
$11.95HKP Enhanced Recoil Rod Spring for HK UMP, USC Upgrade or replace your UMP recoil system with HKP's enhanced heavy recoil rod spring from HK Parts. This spring is approximately 10 percent stronger than a standard recoil spring, making it ideal for...HKP-22507$11.95 -
On Sale
HK416 A4, MR556 A5 Barrel Nut - BLEMISHED
H&K Heckler & Koch
Now: $42.95Was: $60.95HK416 A4, MR556 A5 Barrel Nut - 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 precision-machined steel barrel nut is designed specifically for...HKP-21938-BNow: $42.95Was: $60.95 -
On Sale
HK G36, G36C, G36K Magwell - FDE - BLEMISHED
HKP HK Parts
Now: $28.95Was: $39.95HK G36, G36C, G36K Magwell - FDE - BLEMISHED SHADE OF COLOR MAY VARY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Allows use of all factory G36 and Magpul G36...HKP-19300-FDE-BNow: $28.95Was: $39.95 -
Out Of StockOn Sale
HK Linear Compensator - Threaded 5/8x24 RH - (5.56 & .308) - USED
HKP HK Parts
Now: $65.95Was: $149.95HK Linear Compensator - Threaded 5/8x24 RH - (5.56 & .308) - USED ONLY 1 UNIT AVAILABLE - AS PICTURED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Linear compensators give you the best of both...HKP-19338-USEDNow: $65.95Was: $149.95 -
On Sale
HK91, G3, PTR Stock - Wood - BLEMISHED
H&K Heckler & Koch
Now: $142.95Was: $199.95HK91, G3, PTR Stock - Wood - 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. Complete rear stock for...HKP-19275-BNow: $142.95Was: $199.95 -
On Sale
HK416 Operators Manual - USED
H&K Heckler & Koch
Now: $39.95Was: $54.95Heckler and Koch HK416 Operators Manual - USED Original operator’s manual for the HK416 rifle system. This factory manual provides guidance on operation, maintenance, and safety procedures and is suitable for reference, replacement, or collection...HKP-99387Now: $39.95Was: $54.95 -
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 -
On Sale
HK MP5 Cocking Tube with Hanger Clip - 9mm - USED
H&K Heckler & Koch
Now: $79.95Was: $109.95Heckler and Koch HK MP5 9mm Cocking Tube with Hanger Clip - USED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY Rare factory German HK MP5 cocking tube with hanger clip. Compatible With: MP5, 94, SP5 MP5 clones or other custom builds THIS...HKP-99359Now: $79.95Was: $109.95 -
HK23, HK21, 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