Armaspec Fulcrum 45/90 Degree Short/Full Throw Ambidextrous Safety Selector Bronze. Its easy to reach levers and incredibly smooth action makes position selection a natural fluid movement for the operator while having a super crisp lockup leaving you no doubt about your safety status. Once installed the FULCRUM-45/90 operates easily from either side of the receiver for intuitive use in the field by a variety of shooters in any circumstance. Pat. Pend. Specifications for Armaspec Fulcrum 45/90 Degree Short/Full Throw Ambidextrous Safety Selector: Manufacturer: Armaspec Gun Type: Rifle Gun Model: AR-10 AR-15 Hand: Ambidextrous Condition: New Country of Origin: USA Features of Armaspec Fulcrum 45/90 Degree Short/Full Throw Ambidextrous Safety Selector Coming Soon Package Contents: Armaspec Fulcrum 45/90 Degree Short/Full Throw Ambidextrous Safety Selector What firearm models does the manufacturer say Armaspec Fulcrum 45/90 Degree Short/Full Throw Ambidextrous Safety Selector is compatible with? The manufacturer says that Armaspec Fulcrum 45/90 Degree Short/Full Throw Ambidextrous Safety Selector is compatible with AR-15 AR-10Armaspec ARM213-BRZ: Fulcrum 45/90 Degree Short/Full Throw Ambidextrous Safety Selector Bronze