The Pauza P-50 was a semi-automatic rifle

Semi-automatic rifle

A semi-automatic rifle is a type of rifle that fires a single bullet each time the trigger is pulled, automatically ejects the spent cartridge, chambers a fresh cartridge from its magazine, and is immediately ready to fire another shot...

 developed by Robert Pauza. It was manufactured between 1991 and 1997, and sold by Pauza Specialties of Baytown, TX and later versions were produced by Freshour Manufacturing, a company from Texas City, Texas

Texas City, Texas

Texas City is a city in Chambers and Galveston counties in the U.S. state of Texas. The population was 41,521 at the 2000 census. It is a part of the Houston–Sugar Land–Baytown, Texas Metropolitan Statistical Area.-History:...

. The gun was developed to be a a competitor to Barrett, although only 36 were produced.

The gun was produced in two versions, a rifle

Rifle

A rifle is a firearm designed to be fired from the shoulder, with a barrel that has a helical groove or pattern of grooves cut into the barrel walls. The raised areas of the rifling are called "lands," which make contact with the projectile , imparting spin around an axis corresponding to the...

 and a carbine

Carbine

A carbine , from French carabine, is a longarm similar to but shorter than a rifle or musket. Many carbines are shortened versions of full rifles, firing the same ammunition at a lower velocity due to a shorter barrel length....

, both .50 caliber

Caliber

In guns including firearms, caliber or calibre is the approximate internal diameter of the barrel in relation to the diameter of the projectile used in it....

types.