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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HK UMP Caliber Conversion to 9mm Kit - 7.87" Barrel - 30 Round Magazine
Michaels Machines
$1,293.95MM HK UMP, USC Conversion Kit - 9mm This 9mm conversion kit is designed for USC-to-UMP builds and allows existing .45 ACP conversions to be changed over to 9mm with a simple, drop-in parts swap. All components install in minutes and are built to...HKP-02286$1,293.95 -
Out Of Stock
HK21 Locking Piece - 7.62x51/.308
H&K Heckler & Koch
$149.95H&K HK21 (7.62x51/.308) Locking Piece - New Factory, Old Stock The HK21 standard 50-degree locking piece. Each LP includes the hardness "dot" to identify them as HK 21 locking pieces.HKP-01745$149.95 -
Out Of Stock
HK91, G3 Trigger Group (0,1) - 2 Position - Safe / Semi Only
HKP HK Parts
$429.95G3, 91, PTR Trigger Group 2 Position Housing 0,1- Safe, Semi Only Finally a lower cost alternative to the spendy & rare all-German HK FBI or 0,1 ambidextrous trigger group in a 2 position factory German HK housing. Each trigger group features a...HKP-17235$429.95 -
HKP 93/33 (5.56/.223) Key Mod Handguard
HKP HK Parts
$129.95HK93, 33 & PTR Low Profile Key Mod Forearm The KeyMod tactical hand guard easily installs on your firearm with minimal effort and locks up solid. No fitting required. Designed from the ground up by roller lock & HK enthusiasts with your shooting...HKP-17179$129.95 -
HK33, HK53, HK93 Trigger Pack - 0,1 - Ambidextrous
HKP HK Parts
$379.95HKP HK 93/53/33 (5.56 / .223) Ambidextrous 0,1 Trigger Pack A lower cost alternative to the spendy and hard to find all German HK FBI or 0,1 ambi trigger packs. Now for the first time, we have the popular trigger pack available in an all-German & US...HKP-17233$379.95 -
MP5K Semi Only 4 Position Trigger Group Complete - Clipped & Pinned
H&K Heckler & Koch
$1,499.95MP5K Semi Only 4 Position Trigger Group Complete With Safe, Semi functions only but provides the look and feel of the four position (0,1,3, F) housing. New HK German. Compatible With: HK MP5K/SP89 9mmHKP-00185$1,499.95 -
Out Of Stock
Re-Timed Hammer for Registered Sear Packs - Belt Fed
Michaels Machines
$198.95MM Registered Sear Pack - Re-Timed Hammer - Belt-Fed Billeted re-timed Hammer that has been professionally re-timed by Michael's Machines for belt-fed HK firearms with registered sear packs. A one piece billeted HK re-timed hammer is the necessary...HKP-16996$198.95 -
HK MP5F, MP5 40, 10 Cocking Handle
H&K Heckler & Koch
$85.99H&K MP5F & MP5 40/10mm Cocking Handle New HK German factory correct cocking handle. Each unit is to be used with the correct 40/10 or F-style cocking handle support and cocking tube. Compatible With: MP5 40 MP5 10mm MP5 .357 MP5 9X25 Dillon MP5...HKP-00098$85.99 -
HK MP5SD Cocking Tube - 9mm - Left Hand
HKP HK Parts
$99.95MP5SD Cocking Tube - US Made - For Left-Handed Shooters HK German MP5SD spec cocking tube for use on MP5SD style builds or custom SD builds. Each unit is made from the original factory HK prints & tooling to the perfect HK MP5SD "F" style specs...HKP-18918$99.95 -
Out Of Stock
HK MP5 4 Position Burst Trigger Group 0,1,3,F - USED
H&K Heckler & Koch
$2,599.95H&K MP5 4 Position Burst Trigger Group 0,1,3,F - USED HK German 4 Position 3 Round Burst Trigger Group – complete and ready for use. This is a high-quality, fully functional trigger group featuring a versatile 4 Position Burst (0, 1, 3, F)...HKP-02610$2,599.95 -
HK MP5 Navy Trigger Group - 3 Position (0,1,Full) - With ESSL
H&K Heckler & Koch
$2,549.95HK MP5 3 Position Navy T/G (0, 1, Full) With Extended Safety Selector Lever New factory German complete trigger group with the left side extended lever. No longer available and just a few units remaining. Compatible With: HK MP5HKP-00159$2,549.95 -
HK MP5, MP5K Raised Optic Mount with Burris FastFire - 3.5 MOA
HKP HK Parts / Aimpoint
$509.95HK MP5 Burris FastFire 3.5 MOA Red Dot with Raised Optic Mount The HKP Raised optic mount was designed to elevate the sight to a height that is both comfortable and easy to view, while retaining an unobstructed view of the factory sights. Get the best of...HKP-22398-M$509.95