The STI Ranger is a commander sized 1911. This particular gun is chambered in the 40 Smith & Wesson as compared to the more popular 45ACP that the typical 1911 represents. This gun has been hard chromed to enhance the performance and wear. A few more additions include STI Recoil Master, Dawson ICE magwell, Dawson front and rear sights and grip panels from 10-8 Performance. Even though this gun has a bull barrel giving added weight to the front, it still recoils like a mother. I do not recommend the 40S&W in this configuration. It's not pleasant to shoot.