1911 Full-size government / commander model
These grips fit the Full Size or Government Model 1911 as well as the Commander 1911. They are a traditional style 1911 grip with an arched top and a thickness of approximately 0.26".
Bobtail 1911 grips fit the full-size Government Model 1911 that has been modified with the Bobtail Mainspring Housing.
 note that 1911 Round Butt frames are different from the 1911 Bobtail frames. Round Butt frames are curved from the mainspring to the magwell at the rear of the frame and have a true radius, while Bobtail frames have a straight angled cut