This magazine 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. The Rock Island Armory 1911 full size Magazine is a standard factory replacement magazine for high-capacity, full-size A-2 1911 models chambered in 22 TCM with a magwell. This steel magazine has a polymer magwell basepad and 17-round capacity with a blued finish. The Rock Island Armory 1911 Full Size Magazine is a standard factory replacement magazine. This magazine is for High-Cap A-2 1911 models chambered in 22TCM and holds 17 rounds of ammunition.

Specifications: Caliber: 22TCM / 9mm, Capacity: 17 Rounds, Body Material: Steel, Color: Black, Floorplate: polymer.

This is for one 17 round TCM magazine with BASEPAD for use with FLARED MAGWELL ONLY.

***THESE DO NOT WORK IN THE PISTOLS WITH THE STANDARD MAGWELL. IF YOUR PISTOL HAS THE STANDARD MAGWELL YOU NEED ARMSCOR 54180. THIS MAGAZINE ONLY FITS THE MODEL WITH THE FLARED MAGWELL. IF YOUR OEM MAGAZINE HAS THE FLAT STEEL BASE PAD, THIS MAGAZINE WILL NOT FIT. THIS IS THE CORRECT MAGAZINE IF YOUR OEM MAGAZINE HAS THE EXTENDED POLYMER BASE PAD AND YOUR PISTOL HAS A FLARED MAGWELL.***