Bolt Shroud Kit Features Adapter to install underneath the bolt release on your 1301 Tactical or 1301 Competition to prevent the bolt release from moving backwards and unintentionally releasing a shell onto the lifter. Kit is intended for 1301s and other Beretta semi-automatic shotguns with extended bolt release for prevention of dumping shells unintentionally onto lifter during hard use. Blocks the unloading function of the extended release by preventing it from pivoting rearwards. Does not affect standard bolt release function. Bolt Shroud Kit Specifications Beretta Bolt Shroud Kit For 1301