ProMag AR-15 Magazine 9mm Black Steel 25/rd

A 25-rd magazine for the AR-15 9mm SMG configuration carbine. The magazine body is constructed of heat-treated steel and finished in a black-phosphate. The follower is constructed of a proprietary DuPont Zytel based polymer to ensure a long service life. The springs are made from heat treated Chrome-silicon wire for increased reliability and smooth feeding. Made in the U.S.A.