SEMI-AUTO SAFETY SELECTOR Semi-Auto Ambidextrous Safety Selector. This no frills, tough as nails, ambi safety is a perfect low cost upgrade to your LMT or any other AR-15/AR-10 weapon system. This is a steel, two piece design with equal length levers for quick and effective engagement of the safety in practical usage. Builders will need the safety detent and spring. Also Available in right hand only. Mfg: Lmt Defense