Radian A-DAC 15 Billet Lower Receiver, Black

The Radian A-DAC 15 lower receiver is a billet-machined component designed for AR-15 style firearms. It provides fully ambidextrous fire-control and magazine/bolt interface features, integrating the patented A-DAC dual-action catch to allow bolt hold-open without changing a right-handed shooter’s grip. The receiver is finished in Radian Black and ships with Radian proprietary hardware and enhanced takedown pins.

Key Specifications

• The receiver is machined from 7075-T6 billet aluminum with an integral trigger guard and flared magazine well.
• Caliber marking/compatibility is listed as .223 Rem / 5.56 NATO.
• The controls are fully ambidextrous including magazine and bolt releases.
• Equipped with Radian Talon 45/90 ambidextrous safety selectors (long and short).
• Features the patented A-DAC dual-action catch for bolt hold-open without changing the firing grip.
• Includes a SART (Self-Adjusting Receiver Tensioner) spring-loaded plunger to reduce upper/lower wobble.
• All proprietary hardware is included: extended bolt catch, left-side mag release paddle, right-side magazine release button, right-side bolt release paddle, hammer pin.
• Finish is listed as Radian Black.
• Product type is listed as Semi-Complete.
• Manufactured in the USA.

The A-DAC 15 lower is targeted at users who require ambidextrous ergonomics and refined interface features in a billet receiver. Its combination of proprietary controls, tensioning hardware, and a flared magwell makes it a practical choice for builders who want a durable, feature-rich foundation for an AR-15 style build.