- Peli’s M4/M16 case support space for common optics like the Aimpoint Pro or CompM4, Trijicon ACOG, and EOTECH holosights provided they are mounted on the flattop receiver and not on top of a carry handle
- Case has a 40.2” (102 cm) internal case height to accept standard barrel lengths when locked into the mag well. Suitable for the M4 16” barrel + flash hider and the M16 20” barrel + flash hider.
- Pressure relief valve
- Humidity indicator