Keepshooting.com now manufactures and distributes MIL-SPEC M1 carbine magazines. These magazines, which share a design with the original military M1 carbine magazine, are designed to hold and feed 15 rounds of .30 Carbine ammunition to your M1 carbine. Guaranteed to fit and function in any MIL-SPEC M1 carbine, these brand new magazines are a must-have accessory for any M1 carbine enthusiast.