The AR-308 50 Round Drum from ProMag fits most AR-308/.308 Cal AR type rifles using LR-308 (DPMS) or SR-25 pattern magazines. 

The magazine body is constructed of a proprietary DuPont Zytel based polymer. Has over molded stamped steel feed lips and magazine catch. The follower is injection molded. It has a patented design and heat-treated stainless-steel magazine spring.

Caliber: .308 Win / 7.62 NATO

Capacity: 50 rounds

Finish: Black

Material: DuPont Zytel based polymer

Fits: most AR-308/.308 Cal AR type rifles using LR-308 or SR-25 patterns

**Does NOT fit rifles using Armalite pattern magazines.

ProMag magazines are made in the USA and backed by a lifetime guarantee against manufacturer's defects. Each step of the assembly process is checked and double checked to maintain the same consistent level of quality.