Midwest Industries

The MidWest Industries BUIS is manually raised and locked into position. The button on the left side releases the lock, and allows for the unit to be folded back into its flat/ stowed position. The standard A2 aperture and adjustment knob should be familiar to most shooters. The MI BUIS attaches to the rail via an allen head screw, and as with all other BUIS, loctite or a similar thread locker should be used to prevent it from loosening.