C - Products 3023041178CPD 3023041178CP: C Products Defense is one of the few magazine manufacturers to use fully automated robotic welding stations allowing them to control and ensure each magazine weld is dimensionally correct. This magazine is compatible with AR-15 style firearms chambered in 223 Rem/5.56 NATO. This 30-round model is constructed of stainless steel with a black finish and has an orange plastic anti-tilt follower.