Model: PMAG 30 AR/M4 Gen 2 MOE.

Caliber: 5.56×45 NATO (.223 Remington).

Capacity: 30 rounds.

Construction: Rugged, impact-resistant polymer body; constant-curvature feed lips.

Spring & Follower: USGI-spec stainless steel spring; anti‑tilt, self‑lubricating follower.

Floorplate: Flared for easy grip and removal; tool‑free disassembly.

Optimized For: Colt-spec AR‑15/M4 platforms, but compatible with most STANAG-compliant rifles.

Proven reliability: Gen 2 is a workhorse—polymer, stainless spring, smooth feeding, great durability.

Potential quirks: A few users on AR platforms (e.g., S&W M&P Sport II) have reported intermittent feeding issues at full 30 rounds—solutions include tightening the magazine catch slightly.

Side-by-side upgrade: Gen 3 adds features like windowed bodies and anti-over‑insert ramp, but Gen 2 remains highly regarded and more affordable.