The Swampfox Liberty II green-dot optic benefits from a generously sized 24 mm lens. The G49's frame is of the two-pin variety in which the locking-block pin has been omitted.

No questions asked, no government paperwork, no background checks. This is where the 80 percent Glock models shine. The frame kit and all other necessary parts can be legally ordered on the internet.

The Marine Corps has authorized MARSOC operators to carry Glock pistols, since many of the elite outfit's members prefer the popular 9mm over the custom .45 pistols the service bought them in 2012.