Aimpoint 12358 Spacer High AimPoint Micro Spacers High and Low are for Micro T-1 by AimPoint. This Aimpoint High Spacer raises height of optical axis to 39 mm. 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. Aimpoint 39mm Micro Spacer 12358