This is a Metalform® 8-round magazine with Welded Base and Flat Follower for COMPACT Officer 1911 pistols in 9mm
These combat-ready Metalform magazines are crafted from cold-rolled steel with a fixed, flush-fitting base, steel spring internals, and clear-cut witness holes. Metalform 1911 magazines are some of the best on the market today and the top choice for many members of the military & law enforcement professionals from all over America.