Heresy Design Steyr AUG Safety Selector Black. The Heresy Design safety selector is an easy to install upgrade for any AUG A3 M1 owner Keeping the same dimensions as the original safety selector but adding smooth tapered edges this product allows for easy manipulation of the safety selector without the sharp edges known to catch cut and scratch. Specifications for Heresy Design Steyr AUG Safety Selector: Manufacturer: Heresy Design Color: Black Gun Make: Steyr Gun Model: Steyr AUG Hand: Ambidextrous Features of Heresy Design Steyr AUG Safety Selector Tapered edges for better ergonomics Compatible with A3 M1 Standard and NATO stocks Clearly marked Fire and Safe indicators Aluminum material for Increased Durability Textured ends for ease of engagement Limited Lifetime Warranty Package Contents: Heresy Design Steyr AUG Safety Selector Sticker What firearm models does the manufacturer say Heresy Design Steyr AUG Safety Selector is compatible with? The manufacturer says that Heresy Design Steyr AUG Safety Selector is compatible with Steyr AUGHeresy Design HD-SS: Steyr AUG Safety Selector Black