About Bar-Sto
Bar-Sto has been making the best automatic pistol barrels since 1971. Bar-Sto barrels have been used by the United States Marine Corps Marksmanship Unit since 1977 and are also used by the AMU. They have also been used to win all the major pistol championships around the world including Camp Perry, USPSA Nationals, Steel Challenge, Masters, and many more. All Bar-Sto pistol barrels are machined from solid 416 stainless steel bar stock that is heat treated to 39 to 43 RC and 180,000 PSI tensile strength. Barrels are machined, bored and rifled entirely in their own shop and all barrels have a twist rate of 16 inches to 1 turn.
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