HK Heckler and Koch 3 Position Navy Lower for HK UMP
New German Heckler & Koch UMP 3 position (0, 1, full) Navy lower. Each lower comes complete with all the factory internals. These lowers are ideal for the USC to UMP conversion and to keep as a spare. Each lower is compatible with the 45, 40, & 9mm calibers using UMP magazines.
Last call on these Navy style UMP trigger groups.
Compatible With:
- UMP .45
- UMP .40
- UMP 9mm
- USC conversions (NFA rules apply)
