Patent ID: 6318231
Filing Date: 2001-11-20
Classification: F41A

Abstract:
In a barrel bushing in combination with a semi-automatic pistol, the barrel bushing defining a bore for receiving a pistol barrel therein for reciprocating movement during operation of the pistol, the improvement comprising:(a) first, second and third annular bearing surfaces formed on inner walls of the bore and adapted to move against the barrel during operation of the pistol;(b) the first bearing surface contacting and supporting the barrel during the recoil phase of operation, the first bearing surface defining a plane parallel to the longitudinal axis of the barrel during recoil; and(c) the second and third bearing surfaces residing in axially spaced-apart relation on opposite axially-extending sides of the first bearing surface and defining respective planes which are parallel to the longitudinal axis of the barrel during lockup and on which opposites upper and lower surfaces of the barrel are supported during lockup.