UMP / USC Series

B&T HK UMP (.40 S&W & .45 ACP) Birdcage Flash Hider B&T muzzle brake/flash hider birdcage style with quick detach lever for HK UMP .40 S&W & .45 ACP.  Swiss made B&T quick detach flash hider for HK UMP .40 and .45ACP...

Set of 5 .45 ACP Dummy Rounds Strike Industries dummy rounds will let you safely test the feeding, extraction, and magazine function of your firearms without the worry of accidental discharge. They also let you dry fire without risking damage to the...

Magpul M-LOK QD Sling Mount The M-LOK Quick Detach Sling Mount provides a forward attachment point for the Magpul MS4 Sling and other push-button QD slings. Machined from Mil-Spec anodized aluminum, the low-profile M-LOK QD Sling Mount features beveled...

H&K USC (.45 ACP) Carbine Mag Release This is a great replacement as they are prone to breakage & wear. Please Note: For those that have a USC with a bullet button and are moving to a free state and want to revert back to the...

HK Complete Sear G36, UMP, USC & SL8 Genuine German Heckler & Koch part. Compatible With: HK UMP HK USC HK G36 HK SL8

HK G36 Folding Stock Release Spring This is the spring that fits under the stock release button to activate the folding and retention of the G36 or UMP stock. Compatible With: HK G36 HK G36K HK G36C UMP

Surefire 12-Pack 123A Batteries Made in the USA and the "gold standard" in battery performance. These are the best performance, longest lasting 123 batteries available. The price is for a box of 12 new batteries. Ideal for use with lasers, lights,...

Strike Industries M-LOK & KeyMod Universal 7 Slot Rail Section - Red Strike Industries LINK attachment system takes the age old question Key-Mod vs. M-LOK and came up with the ultimate solution, a dual interface design compatible with both M-LOK and...

HKP HK UMP, G36 3 Position Selector - Right HK UMP & G36 right safety selector lever for all 3 position HK UMP & G36 lowers only.

HKP .45 ACP 4 Prong Pistol Flash Hider - Threaded .578x28 RH This flash hider adds a neat look & feel that provides outstanding flash hiding capabilities. Perfect for adding a unique look to your .45 ACP. Made in the USA, each flash hider is made of...

HK UMP & USC Lower Axle Pin - US 3 lower axle pins are used for each trigger group or lower all the same size with the exception of the mag release axle on the USC.

Sear For The HK UMP, USC, G36, & SL8 - USA CNC machined from aircraft grade aluminum that is hard coat anodized that will last much longer than the factory HK part that's made with plastic. This part counts as 1 US-made 922r compliant part. 100% USA...