ProMag builds this magazine (part no. DPM-A4-FDE) for AR-308/LR-308 pattern rifles, chambered in .308 Winchester/7.62x51mm NATO and holding a substantial 40-round capacity in Flat Dark Earth polymer. It gives AR-308/LR-308 owners a high-capacity option for range use in a caliber built around the full-size .308 case. For ProMag owners of an AR-308/LR-308 pattern rifle, this rifle magazine is a high-capacity spare.

Key Specifications

• Chambered in .308 Winchester/7.62x51mm NATO.
• Holds a high-capacity 40 rounds.
• Fits AR-308/LR-308 pattern rifles.
• Built from polymer in a Flat Dark Earth finish.
• A detachable box magazine.
• Loads through the standard AR-308/LR-308 magazine well without modification.
• Sold under ProMag’s Magazine line.
• Ships as a single magazine.
• Manufactured by ProMag.

Frequently Asked Questions

What rifles does this magazine fit? AR-308/LR-308 pattern rifles chambered in .308 Winchester/7.62x51mm NATO.

How many rounds does it hold? A high-capacity 40 rounds.

Buy the ProMag AR-308 Magazine

A high-capacity Flat Dark Earth polymer magazine built for the full-size .308 AR platform, this ProMag 40-rounder is a solid range-day option. Order it from our Lubbock, Texas gun shop for fast, insured shipping.