Our Pistol Mounted Optic (PMO) Collimator features a large grid that’s designed to accommodate a broad range of skill levels.  It’s biased downward to match common error (down & left/ right) in pistol shooters. This main grid, which measures 100 MOA in each direction, is graduated in 10 MOA squares (10 rows and 10 columns).

The PMO Collimator also has a 30 MOA ‘grid-within-a-grid’ centered on CZP. It’s graduated in 5 MOA squares to allow shooters with a higher skill level to be more precise with zero settings.

For assault rifles, sub-machine guns, and some light machine guns (i.e. M4/, M16, MP-5, M27), the SAC grid is graduated in large, bold squares and smaller, finer squares. The large squares, which are designed to be easily visible when using iron sights or optics with no magnification, are 4 mils (equal to approximately 14.4 inches at 100 yards). The small squares are for use with low power magnified sights (i.e. 3-4X magnification). They are 2 mils (approximately 7.2 inches at 100 yards). There is a cut-out portion on the large squares that creates a ‘notch’ for the front sight post when using iron sights.

The grid for sniper weapons with magnified optics (10X magnification or greater) is significantly finer than the one used on assault weapons. Each square on the sniper grid is 0.2 mils (approximately 0.7 inches at 100 yards). The smaller squares allow for much more precise readings – less than 1/2 minute of angle (MOA). This type of precision is required for sniper weapons, where the accuracy standard for each piece of the system and for the system as a whole is ‘better than 1 MOA’.

Unlike the assault weapon grid, the sniper grid is not a square. In order to allow shooters to record zero at extremely long engagement distances, the bottom of the grid is extended by 16 mils.