MDT 10 round 223 magazines. These are Polymer mags made by MDT for the 223 rounds. They allow long 2.500" OAL for long heavy handloads, and also accommodate 300 Blackout/Whisper rounds, as well as 204 Ruger, and similar sized odd rounds. They fit on all our DBM that uses AI 308 mags. 10 round only available. These are now Preferred over AI mags for 223. Call for info if needed.