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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HK416, MR556 Adapter - Muzzle Brake or Suppressor - 1/2x28
Surefire
$165.00Surefire (5.56/.223) Muzzle Brake/Suppressor Adapter - Threaded 1/2x28 The SureFire muzzle brake is designed for M4, M16, HK 416, and MR556 weapons with 1/2-28 muzzle threads. It significantly reduces recoil impulse and muzzle rise, enhancing...HKP-17378$165.00 -
Out Of Stock
HK MR556 Upper Receiver Kit -16.5" - M-LOK
H&K Heckler & Koch
$1,779.95New HK Factory German MR556 Upper Kit with M-LOK forearm Includes: Complete MR556 upper receiver with M-LOK forearm MR556 Bolt group Complete Tungsten Filled HK Buffer HK Buffer Spring One 30 Round HK Steel Maritime Magazine No FFL required as the...HKP-17366$1,779.95 -
HK416, MR556 Bolt Carrier
H&K Heckler & Koch
$397.95H&K HK MR556/416 Factory Bolt Carrier With The Newer Style Bolt Retaining Key This is the factory one-piece carrier that has the out-of-battery disconnect and the bolt retaining latch assemblies installed to make up the HK MR556 (556...HKP-02718$397.95 -
HK SL8, G36 Front Sight
H&K Heckler & Koch
$19.95HK German SL8/G36 (G36,G36K,G36C & SL8) Front Sight Post - New This item is the replacement polymer front sight post for the HK sight rails.HKP-00638$19.95 -
HK G36, SL8, USC, UMP Sight Screw - Rear
H&K Heckler & Koch
$19.95HK G36, SL8 & USC, UMP Rear Sight Screw Rear sight screw to retain HK G38/Sl8 & USC/UMP rear sights housings to the rear sight base. Compatible With: G36, SL8 USC, UMPHKP-16382$19.95 -
HK USC, SL8 Sight Support Spring
H&K Heckler & Koch
$9.95H&K USC/SL8 (.45 ACP/5.56/.223) Rear Sight SpringHKP-16516$9.95 -
HK UMP Magazine Release - Enhanced - Billeted
HKP HK Parts
$34.95HKP HK Parts Enhanced Paddle Magazine Release for HK UMP 9mm, .40 S&W, .45 ACP This is a very common replacement part as they are fairly easy to break on the UMP lower. With this new mag release, you'll get a wider release as well as a much more...HKP-18758$34.95 -
HK G36, UMP Hammer - Full Auto
H&K Heckler & Koch
$49.95G36 & HK UMP Hammer For Lower Or Trigger GroupHKP-02308$49.95 -
Out Of Stock
HK91, G3 Locking Piece - 45 Degree
PTR
$21.9545 Degree Locking Piece - US Made PTR standard 45 degree locking piece made in the USA by PTR and is design to be a direct replacement for all .308 HK style firearms. Compatible With: G3 PTR 91 HK 91 Other costume clonesHKP-18518$21.95 -
HK G3, HK417 Flash Hider - WARCOMP - Threaded 5/8x24
Surefire
$159.95SureFire WARCOMP (7.62x51/.308) Flash Hider - Threaded 5/8x24 This flash hider is perfect for the post 2016 production PTR models as well as C308 models. Compatible With: HK G3/91/PTR HK 417/MR762 HK PSG1 B&T APR AR10 LR308 C308 7.62x51/.308...HKP-18024$159.95 -
HK33, HK53, HK93 Clubfoot Stock
Michaels Machines
$315.95MM Club Foot Stock for HK33, HK53, and HK93 This clubfoot ships assembled with a mix of German and US-made parts. Includes: MM 21E Clubfoot Central Stock Section - US Made US Heavy Rubber Buttpad - US Made HK G3 to HK33, HK93 Back Plate - German HK...HKP-01455$315.95 -
HK MP5SD Cocking Tube End Cap Weldment - 9mm
USA
$34.95MP5SD Cocking Tube End Cap Weldment For MP5 Front Sight Towers Milled from solid billet. US made MP5SD cocking tube end cap weldment for use with all MP5 front sight towers. Available exclusively at HK Parts.HKP-15702$34.95