Sig Sauer MAGMODF921COY OEM Black with Coyote Floor Plate Extended 21rd for 9mm Luger Sig P320, M17, M18

This product is a 21-round extended magazine designed specifically for the SIG SAUER P320-M17. The model this magazine is compatible with is the P320 / M17. It is meant for use with the 9mm Luger caliber. Notably, the magazine capacity is extensive, as it can hold 21 rounds.