Badger Ordnance Universal Safety Selector Parkerized BO. They are machined from 4140 hardened steel with a Manganese Phosphate Parkerized finish. The offhand side of the Badger Ordnance Universal Ambidextrous Safety Selector is marked with high visibility paint and is raised for both visual and tactile confirmation of selector position. The control side of the safety is marked as well but retains the original GI configuration of the lever to maintain familiar dexterity. The Badger Ordnance Universal Lightweight Safety Selector prevents obstructing the trigger to reduce injury. Specifications for Badger Ordnance Universal Safety Selector: Manufacturer: Badger Ordnance Color: Black Finish: Parkerized Gun Model: SR-25 AR-10 AR-15 Fabric/Material: 4140 Steel Hand: Ambidextrous Condition: New Package Contents: Badger Ordnance Universal Safety Selector What firearm models does the manufacturer say Badger Ordnance Universal Safety Selector is compatible with? The manufacturer says that Badger Ordnance Universal Safety Selector is compatible with AR-15 AR-10 SR-25Badger BO24942: Universal Safety Selector Parkerized