Rock Island Armory Armscor 1911 Blued 1911 A1 40 S&W Handgun Magazine - 8 Rounds - The Rock Island Armory Armscor 1911 Full size Magazine is a standard factory replacement magazine. This magazine is for single stack A-1 1911 models chambered in .40S&W and holds 8 rounds of ammunition. It is made of steel and is made to Armscor/Rock Island Armory specifications and tolerances, using the same manufacturing and materials as the original equipment magazines, ensuring perfect fit and operation. Features Made in the USA ; Standard 8-round single-stack capacity; Blued finish for corrosion resistance; Metal construction for durability; Rubber Base Plate; Designed for 1911 A1-style .40 S&W pistols;