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 Piston Guide - Threaded - Upper Receiver
H&K Heckler & Koch
$19.95Heckler and Koch Upper Receiver Threaded Piston Guide for HK MR556 and HK416 Compatible With: HK416, MR556 M27HKP-02640$19.95 -
HK416, MR556 Bolt Catch
H&K Heckler & Koch
$60.95Heckler and Koch HK MR556 and HK416 Bolt Catch New HK German manufacture. Compatible With: HK416, MR556HKP-02542$60.95 -
HK UMP, USC Front Sight - 9mm / .40 S&W / .45 ACP
H&K Heckler & Koch
$14.95New HK German Factory USC/UMP Front Sight This is a common wear or breakage part. This part is easy to swap out by just knocking out the roll pin, replacing it, and then re-inserting the roll pin...HKP-00254$14.95 -
Out Of Stock
HK MP5, MP5K Flash Hider - 3-Lug - 9mm
HKP HK Parts
$99.95HKP HK MP5 9mm Flash Hider - 3-Lug Easily attaches to the end of any factory specification 9mm 3 lugged barrel. This flash hider does not require the of threads as it attached to the 3 lug tip. Also...HKP-17228$99.95 -
Maglula UZI Magazine Loader, Unloader
Maglula
$29.95Maglula UZI Magazine Loader, Unloader Each part is made to load and unload your 9mm UZI magazines in seconds. This will allow you to do more shooting and less loading. With this loader, magazines can...HKP-14547$29.95 -
HK MP5K Folding Brace - Skeletonized
B&T Brugger & Thomet / SB Tactical
$239.95SB Tactical - B&T - HK MP5K Swiss Folding Brace - Skeletonized Factory Swiss B&T MP5K, SP5K folding pistol brace with the SB tactical/ B&T components assembled. A rare offering using the B&T Swiss...HKP-21054$239.95 -
On Sale
HK MP5 Brace and Stock Adapter - .22LR
HKP HK Parts
$70.09 - $99.95HKP HK MP5 .22LR Brace and Stock Adapter This is the perfect folding stock adapter to replace the polymer end cap on your MP5 .22. CNC machined from a solid billet of aircraft grade aluminum and...HKP-20795-M$70.09 - $99.95 -
HK91, G3 Clubfoot Stock with Enhanced Heavy Buffer
Michaels Machines
$429.95US Michaels Machines Clubfoot Stock for HK G3, HK91, PTR-91, and Clones U.S clubfoot stock comes fully assembled and ready to drop onto your HK G3, HK91, PTR or other HK style firearm. Enhanced...HKP-20068$429.95 -
HK MP5K Folding Stock with Adapter
$269.95German Folding Stock with HK Parts Adapter - MP5K German folding stock with MP5K HK Parts Adapter. The HK Parts adapter offers a QD attachment point and is made from hard coat anodized aluminum...HKP-19550$269.95 -
HK UMP, USC Firing Pin Assembly - Complete
H&K Heckler & Koch
$82.95HK German USC & UMP Firing Pin Assembly Complete A great spare to have on hand as this item is a hard-to-find replacement part. Compatible With: USC 45HKP-00609$82.95 -
Out Of Stock
HK MP5, HK33, G3 Optic Mount - Mid Range
B&T Brugger & Thomet
$129.95B&T MP5, HK33, G3, PTR - Mid Range Mount This scope mount will allow the the use of the HK fixed sights (through an oval opening) and also allowing the optic to sit higher thant the front sight tower...HKP-16882$129.95 -
Out Of Stock
HK21, HK11 Trunnion
RCM
$274.95RCM HK21 Trunnion When RCM set out to make a replacement trunnion for the venerable HK21, they started the process by putting a factory unit through rigorous destructive metal testing. The...HKP-21609$274.95