Dual-chamber precision magazine for Umarex Hammer.
This magazine is specifically made for the .50 caliber Umarex Hammer and is chambered for .510 lead airgun slug ammunition. It is precision manufactured for exclusive use in the Umarex Hammer.
NEVER fire the Umarex Hammer without a magazine inserted and NEVER depress the magazine well floor plate safety with anything other than the magazine. ALWAYS keep your hands and face away from the magazine well of the Umarex Hammer.