The BAD-ASS (Battle Arms Development Ambidextrous Safety Selector) Lite upgrades your AR-15 with modernized function and fit. This lightweight selector features a hardened steel core with reversible detents, for a 60 or 90 degree throw. The aluminum levers are swappable to either side, making the selector completely ambidextrous and lefty friendly.Plus, it's very easy to install. The center core features two set screws that back out against the inside of the levers, making an ultra-secure fit you can rely on.Features: Includes steel core, aluminum levers, safety spring, and safety detent Modular Assembly Ambidextrous Controls Reversible 0deg- 60deg or 0deg- 90deg Option Lightweight, Billet 7075-T6 Aircraft Grade Aluminum Levers Ergonomic Lever Design for Positive Purchase Limited Lifetime Warranty Against Manufacturing Defects Dovetail Attachment Engineered for Ultimate Strength and Reliability Patent Pending Internal Locking Mechanism Eliminates Broken Screws Swiss CNC Machined Center for Ultimate Precision and Butter Smooth Operation Compatible with All Known AR Variant Triggers(1) (i.e. Hiperfire, Geissele, CMC, Timney, etc.) Compatible with All Known AR Variant Lower Receivers with or w/o Short-Throw Relief Cut and MarkingsSpecifications: Center Material: Hardened Bar-Stock Steel Center Finish: Black Phosphate Lever Material: 7075-T6 Aluminum Lever Finish: Hardcoat Anodized Assembly Weight: 0.50 oz (center core, standard lever, short lever, and two set screws)