Aimpoint Bar Locking and Shaft for Micro T-1/H-1. The AimPoint Micro H-1 is designed for hunting rifles handguns and bows. The Micro R-1 by AimPoint is designed for stainless steel revolvers and competition pistols.The Micro T-1 by AimPoint is designed for use on firearms with a Picatinny rail. These red dot sight accessories boasts the same Aimpoint quality as we have come to expect from Aimpoint Red Dot Sights. These Aimpoint Red Dot Sight Accessories are made to work with the Aimpoint Red Dot Scopes. Package Contents: Aimpoint Micro T-1/H-1 & R-1 Bar Locking and Shaft Aimpoint Bar Locking and Shaft for Micro T-1/H-1