Radian A-DAC 15 Complete Pistol Lower Superb Ambidextrous AR-15 Lower with SBA3 Brace, Black

Description

The Radian A-DAC 15 Complete Pistol Lower is Radian Weapons’ fully ambidextrous AR-15 lower, machined from billet 7075-T6 aluminum with an integral trigger guard and flared magazine well and finished in Radian Black Cerakote. This complete pistol lower comes assembled with a Radian Vertex FBX trigger, Magpul K2 grip, and an SB Tactical SBA3 brace, ready to accept an AR-15 pistol upper. Out of the box the Radian A-DAC 15 Complete Pistol Lower needs only an upper to run.

What the A-DAC actually does

A-DAC stands for Ambidextrous Dual-Action Catch, and it solves the one control a standard AR-15 lower leaves on the wrong side for right-handed shooters. To lock the bolt back, pull the charging handle, press the right-side magazine release button, and let the charging handle go. Your firing hand never leaves the grip. The same lower also has a right-side bolt release paddle and a left-side magazine release paddle, so lefties get a true ambidextrous AR-15 lower and righties get faster reloads and malfunction clearing.

The Radian Talon safety selector can be set up for a short 45-degree or standard 90-degree throw, with long and short levers included. A spring-loaded SART plunger (Self-Adjusting Receiver Tensioner) takes up slack between upper and lower, which removes the wobble many AR owners otherwise fix with an accu-wedge. Enhanced takedown pins round out the package.

Radian A-DAC 15 Complete Pistol Lower specifications

• Radian part number: R0847
• UPC: 810098420730
• Configuration: complete pistol lower
• Receiver: billet 7075-T6, integral trigger guard, flared magazine well
• Controls: A-DAC right-side bolt hold open, ambidextrous magazine and bolt release, Talon 45/90 ambidextrous safety with long and short levers
• Trigger: Radian Vertex FBX flat-face
• Buffer system: 6-position mil-spec receiver extension, Radian QD end plate, H2 carbine buffer
• Grip: Magpul K2
• Brace: SB Tactical SBA3 pistol stabilizing brace
• Receiver tension: SART spring-loaded plunger
• Takedown pins: Radian enhanced set
• Finish: Radian Black Cerakote
• Compatibility: standard mil-spec AR-15 upper receivers

Building an AR pistol on this lower

This lower ships in pistol configuration with an SBA3 brace instead of a stock, so it is meant for an AR-15 pistol upper, typically a 7.5 to 11.5-inch barrel in 5.56 or 300 Blackout. Radian 9-inch 300 Blackout and 10.5-inch .223 Wylde uppers are natural matches, and with one of them the Radian A-DAC 15 Complete Pistol Lower becomes a compact, fully ambidextrous AR pistol built on the A-DAC lower receiver.

Keep the configuration legal. Putting a stock on the Radian A-DAC 15 Complete Pistol Lower with a barrel under 16 inches makes a short-barreled rifle, which requires ATF approval before assembly, and MAG5 does not sell NFA items. Rules on stabilizing braces have changed several times in recent years through ATF rulemaking and court decisions, so check current federal and state law before you build. Some states restrict AR pistols outright.

Pairing it with an upper

The Radian A-DAC 15 Complete Pistol Lower accepts standard mil-spec AR-15 upper receivers in 5.56, .223 Wylde, 300 Blackout, and other AR-15 calibers. For the closest color match, pair it with a Radian upper in the same Cerakote color, though parts coated in separate batches can vary slightly in shade. We stock several Radian uppers and upper and handguard sets, which makes it possible to build a Model 1 equivalent one piece at a time. With a short pistol upper on the Radian A-DAC 15 Complete Pistol Lower, confirm the barrel and gas system suit your ammunition, especially if you plan to run subsonic 300 Blackout.

Honest trade-offs before you buy

This is a premium lower, and a mil-spec forged lower with a basic parts kit costs a fraction as much. Part of what you pay for is proprietary: the A-DAC bolt catch, paddles, and magazine release are Radian parts, so replacements come from Radian rather than any gun counter, though Radian does sell them individually. Some aftermarket ambidextrous magazine releases and bolt catches will not fit.

A lower receiver is the serialized part of an AR-15, so it is a firearm under federal law. You must be 21 or older to buy one from a dealer, and it transfers through an FFL with a background check. Some states restrict what you can build on it, including magazine capacity and features. Because the Radian A-DAC 15 Complete Pistol Lower is set up as a pistol, state handgun rules may also apply to the transfer.

Who the Radian A-DAC 15 Complete Pistol Lower suits

The Radian A-DAC 15 Complete Pistol Lower makes sense for shooters building a compact AR pistol, especially in 300 Blackout, and anyone shopping for an AR pistol lower with ambidextrous controls and a premium trigger already installed. It is less compelling if you want the cheapest possible build or if you run a heavily customized parts kit you do not want to give up.

Buy the Radian A-DAC 15 Complete Pistol Lower from MAG5 Firearms

MAG5 Firearms is a family-owned FFL dealer in Collegeville, Pennsylvania, and this lower is in stock now. Radian assembles complete lowers to order, with a lead time of about 10 business days when bought direct. Pick it up at our shop by appointment after the background check, or we can ship to your local FFL where legal. Browse the rest of our Radian Weapons collection, or see the factory details on the Radian A-DAC 15 product page. Questions about a build? Call 610-943-0010 or email [email protected].