UMP / USC Series

HK USC .45 buttstock Stock Used in Vg shape or better NO BUFFER included. Pull off from HK German USC rifles. HK German manufacture

WOOX M-LOK Angled Grip Compact angled foregrip for M-LOK handguards, built with a reversible dual-wall structure and checkered texture for a secure, consistent support-hand index. Features: Flat-bottom design for added stability and...

WOOX Edge Stock - Walnut The WOOX Edge Stock is a premium upgrade for rifles and SMGs featuring a 3 Picatinny stock interface. It blends a precision-machined aluminum body with an American walnut cheek riser for a clean profile, solid lockup, and a...

A3 Tactical Picatinny Skelestock The A3 Tactical Skelestocks are fixed-length folding skeleton stocks meticulously machined from 6061 aluminum. An ambidextrous hinge enables it to fold either to the right or left, depending on the mounting...

B&T QD Mount "Skeleton" for Aimpoint T Series 52mm B&T universal Picatinny mount 52mm QD riser mount for the Aimpont T Series of optics. Quickly attach and detach your Aimpoint T Series optic with B&T's precision machined 52mm mount. The...

H&K Factory Hard Case H&K hard shell case. This is the perfect case that will guarantee to protect your most prized possessions. Only a few in stock so get them before they are all gone. Compatible With: MR762 MR556 USC SL8 rifles any rifle...

HK Ratched Wheel Notched Disk For 3 Position Lowers Compatible With: HK G36 HK UMP

HK Heckler and Koch Incomplete Rear Sight for USC and UMP  Includes: Rear Sight ONLY Compatible With: USC UMP

HK German USC Lower Receiver - Complete - Used Includes all internal semi-auto stock USC trigger internals for a complete lower trigger group. Great spare for or the complete needed parts for doing a USC-UMP grease gun conversion or all German USC-UMP...

MM HK UMP (9mm) Barrel - 16.5 Inch   Fluted just like the factory HK barrels with 16 flutes.

HK UMP and G36 Handstop HK G36 hand stop kit. Complete with locking block and screw. Fits any G36 handguard without the need of rail segment. Compatible With: All G36 Models HK SL8 HK UMP HK USC

1/2x28 - Plan B Taper Mount Flash Hider for MP5, HK416, MR556, APC223  The 360HD is the latest evolution in JMac Custom's Recoil Reduction Device (RRD) family of muzzle brakes, designed to meet the needs of serious shooters and...