ProMag AR-308 40-Round Polymer Magazine

The ProMag AR-308 40-round polymer magazine is a detachable replacement or spare magazine for AR-308/.308 AR-style rifles that use LR-308 (DPMS) or SR-25 pattern magazines. The magazine body is molded from a proprietary DuPont Zytel-based polymer and features an injection-molded follower and a spring formed from heat-treated chrome silicon wire. Finished in black, this magazine is intended for high-capacity feeding in compatible LR-308/DPMS and SR-25 pattern rifles. This magazine does not fit rifles using Armalite pattern magazines and is made in the USA.

Key Specifications

• This product is a detachable magazine.
• The capacity is 40 rounds.
• Compatible with AR-308/.308 AR rifles using LR-308 (DPMS) or SR-25 pattern magazines.
• The magazine body is constructed of DuPont Zytel polymer.
• The finish is black.
• The magazine uses an injection-molded follower.
• The spring is formed from heat-treated chrome silicon wire.
• This item does not fit Armalite pattern magazines.
• The listed cartridge compatibility is .308 / 7.62 NATO.
• Manufactured in the USA.

Designed as a reliable spare or replacement, this ProMag AR-308 magazine provides a high-capacity option for range sessions, competition, and field use where LR-308/DPMS or SR-25 compatibility is required. Its polymer construction and hardened spring offer a balance of durability and serviceability for shooters who need dependable feeding without added complexity.