This HHS combination pairs the EXPS3-0 Holographic Weapon Sight and the G33, 3x magnifier, with a riser mount and STC (Switch-to-Center) magnifier mount that positions the line of sight at 2.26 inches above bore. This solution provides a more natural shooting posture and is ideal for use with gas masks and NV goggles. Th magnifier can be switched down and out of the way to provide fast 1x target acquisition, and quickly switched up for more precise, accurate shot placement at distance.