Troy Safety Selector Assembly Direct Thread Ambi Semi Auto. Traditional lever side has been built for a more positive feel. Right side features a lower profile lever and will not interfere with trigger operation for right handed shooters. Rugged machined billet tool steel construction. Note: Will not work with non Mil-Spec receivers or billet receivers. Specifications for Troy Safety Selector Assembly Direct Thread Ambi Semi Auto: Mfg Item Num: SSAFAM5S0BT00 Type: 90 Degree For: Semi-Automatic Master Model Header: Ambidextrous Safety Selector Semi-Automatic The Troy Safety Selector Assembly Direct Thread Ambi Semi Auto is a quality addition to the Troy Industries lineup. For more great deals on AR15 Safety Selectors by Troy Industries please browse our Troy Gun Parts page. Troy SSDT-AMB-S0BT-00: Safety Selector Assembly Direct Thread Ambi Semi Auto