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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Harris Bipod Adapter - Long - Picatinny
HKP HK Parts
$34.95Harris Bipod Adapter This mounts to any Picatinny rail and proves a stable platform to add a Harris bipod or other similar-style bipod. This will fit any Picatinny spec rail or rail system. Made in the US out of aircraft-grade aluminum and steel.HKP-00909$34.95 -
HK MP5, HK94 Cocking Tube - LH
HKP HK Parts
$119.95HKP MP5, HK94 Cocking Tube - For Lefties This is the one and only left handed cocking tube for the MP5/HK94 ever made and it happens to be a US manufactured part. Features include enlarged charging handle clamping pin access hole as found on the latest...HKP-17380$119.95 -
HK Receiver Flat Bending Set Jig - RENTAL
HKP HK Parts
$99.95Flat Bending Jig Set For All HK Style Receiver Flats - RENTAL Receiver flat bending jig RENTAL for all HK receiver flats. Our rental jigs are crafted in the US from billeted steel and include the latest revisions with proper dowel spacing for the...HKP-19595-RENTAL$99.95 -
HK416, MR556, HK417, MR762 Selector Lever - Ambi - Right
H&K Heckler & Koch
$11.95Heckler & Koch HK416 Ambi Safety Selector Lever Factory HK polymer right side selector lever. Compatible With: HK416 A1/A3 HK MR556 A1 HK417 HK MR762 A1HKP-22309$11.95 -
HK416 A4, MR556 A5 Barrel Nut
H&K Heckler & Koch
$60.95H&K HK MR556 A4/HK 416 A5 Barrel Nut This precision-machined steel barrel nut is designed specifically for H&K’s MR556 A4 and HK416 A5 rifles. It secures the barrel and supports the proprietary HK free-floating handguard system, offering...HKP-21938$60.95 -
HK G3 Standard Stock Buttpad - Green - Used
H&K Heckler & Koch
$2.95H&K G3 Standard Stock Buttpad - Green - Used This German-made buttpad is an excellent replacement for your worn-out or broken buttpadd on the G3 stock. Used but fully functional. Compatible With: HK G3HKP-21865$2.95 -
On Sale
HK33, HK53, HK93, HK91, G3 Flash Hider - Threaded 15x1 RH - USED - BLEMISHED
H&K Heckler & Koch
Now: $7.95Was: $15.95Heckler and Koch Flash Hider for (7.62/.308) & (5.56/.223) - 15x1 RH - USED - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Used surplus HK German...HKP-00717-BNow: $7.95Was: $15.95 -
HK416, MR556 Barrel - 5.56 - 14.5" - Threaded 1/2"x28- A3 - Light
Nefarious Arms
$594.95Nefarious Arms HK 416/MR556 14.5" A3 Barrel Each Nefarious Arms barrel is cold-hammer-forged and chrome-lined for years of accurate shooting. Grab this expertly crafted barrel for your next SBR or pistol build. Compatible With: HK 416 A1,...HKP-21589$594.95 -
HK21, FMP Drum Hanger & 100rd Drum
H&K Heckler & Koch
$1,288.95H&K HK21/FMP Drum Hanger & 100rd Drum Complete your HK21 or FMP21 build with the incredibly rare original H&K drum hanger and 100-round drum. These components have long been discontinued and are essential for completing a proper HK21 or...HKP-21509$1,288.95 -
HK UMP, USC Sling Pin, Stock Block B
HKP HK Parts
$49.95HKP HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B Sling Pin The original thumb screw version for all stock block B's.HKP-21504$49.95 -
On Sale
HK416 A5 Bolt Carrier - Complete
H&K Heckler & Koch
Now: $1,945.00Was: $2,349.95German H&K HK 416 A5 Bolt Carrier Complete Get your hands on that critical puzzle piece for your factory-correct 416A5 build. Fully assembled and ready to drop into your uper receiver. Bolt carriers may be marked ".223 Rem" or "5.56 x 45"...HKP-21500Now: $1,945.00Was: $2,349.95 -
On Sale
HK SP5 Stock - MOD2 - Strike Industries
HKP HK Parts / Strike Industries
Now: $111.71Was: $199.95Strike Industries HK SP5 Drop-In MOD2 Stock We pair our SP5 AR stock adpter with this Strike MOD2 stock to give you a drop-in SP5 stock. Give your build a modern look and added comfort and adjustability of the MOD2 stock. Only available here at HK...HKP-21332-MNow: $111.71Was: $199.95