This ProMag DRMA1 is a 50-round drum magazine designed for AR-308 / .308 Win (7.62×51 NATO) rifles that accept LR-308 (DPMS) or SR-25 pattern magazines. The body is constructed from a proprietary DuPont Zytel-based polymer with over-molded stamped steel feed lips and magazine catch. Components include an injection-molded follower and a heat-treated stainless steel spring; the design is made in the USA and does not fit Armalite-pattern magazines.
Key Specifications
- The capacity is 50 rounds.
- The compatible cartridge is .308 Win / 7.62×51 NATO.
- The magazine body is constructed of a DuPont Zytel-based polymer.
- The finish is black.
- Pattern compatibility is LR-308 (DPMS) and SR-25 — does not fit Armalite-pattern magazines.
- Feed lips and magazine catch feature over-molded stamped steel.
- The follower is an injection-molded magazine follower.
- The spring is a heat-treated stainless steel magazine spring.
- The product type is a drum magazine.
- Origin is Made in USA.
This drum magazine provides a high-capacity feeding option for range work, long training sessions, or applications where extended capacity is required within platforms accepting LR-308/DPMS or SR-25 magazines. Its steel-and-polymer hybrid construction balances durability and weight while maintaining a familiar AR-10/AR-308 interface.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.




