Originally posted on accurateshooter.com. https://www.accurateshooter.com/technical-articles/run-ar-magazines-in-your-rem-700-bolt-gun/
How'd you like to run AR-15 Mags in your Rem 700 bolt gun? Sound far-fetched? Well think again. Pacific Tool and Gauge has developed a unique bottom metal system for Rem 700 short actions that works with standard AR-15 mags, providing reliable function with .223 Rem (5.56x45mm) rounds. The system works with straight 5-round, 10-round, and 20-round metal mags as well as larger, angled 30-round metal mags. (Because they are thicker, Magpul mags and other polymer magazines do not work with this PT&G bottom metal system.)
At SHOT Show, Dave Kiff showed us the AR-Mag compatible bottom metal. “It took a lot of time to get the geometry just right, but we're proud of this product”, Dave said. A PT&G exclusive, this special bottom metal as been designed to fit in all Remington 700 standard factory stocks right off the shelf with minimal inletting. This bottom metal features a handy mag release button incorporated into the side of the bottom metal (this is more reliable and secure than a mag release in the trigger guard).
Slight Modification Required During Installation Customers purchasing this bottom metal will need to modify their Rem 700 actions very slightly, to create a little extra clearance. The Feed Bevel (left photo) needs to be opened to 0.660", while the mag well needs to be opened to 0.900".
