Windowed PMAG® 25 LR/SR GEN M3 — 25 rounds — 7.62×51 mm NATO (.308 Win) — Magpul®

Windowed PMAG^® 25 LR/SR GEN M3 — a durable, low-weight 25-round magazine for 7.62×51 mm NATO (.308 Win) platforms, offering dual-sided witness windows, tool-free maintenance and reliable bolt-hold-open performance.

Clear, instant round-count verification

The PMAG^® 25 LR/SR GEN M3 features dual-sided transparent witness windows that let you check remaining rounds at a glance without removing the magazine. The windows are designed with an anti-glare finish to reduce unwanted reflections under bright light.

Engineered for reliable feeding

Constructed from a rugged polymer body, this PMAG utilises a stainless-steel spring and a self-lubricating anti-tilt follower to ensure consistent, dependable feeding in field conditions. The magazine’s design promotes smooth magazine insertion and positive feeding across a wide range of SR/AR-10 pattern rifles.

Field-serviceable and user friendly

An extended, removable baseplate simplifies handling and improves magazine extraction from pouches. Tool-free disassembly allows quick cleaning and inspection of internals for fast, low-effort maintenance.

Compatibility and limitations

Compatible with many SR/AR-10 pattern platforms (SR-25/M110 and similar). See the product compatibility list for known fits and exclusions. Note: the bolt-hold-open function (bolt lockback on last round) is model-dependent; it may not operate optimally with some newer DPMS GII variants. Verify compatibility with your specific rifle model before purchase.

Key features

• Capacity: 25 rounds (7.62×51 mm NATO / .308 Win)
• Dual-sided transparent witness windows with anti-glare finish
• Removable extended baseplate for easier handling and drop protection
• Self-lubricating anti-tilt follower for reliable feeding
• Stainless-steel spring for long service life (protective finish — see tech sheet)
• Tool-free disassembly for fast field maintenance
• Bolt-hold-open on last round (platform dependent — verify compatibility)

Compatibility — examples

Common compatible platforms include SR-25 pattern rifles and many AR-10A derivatives (examples: Colt LE901-16S, CORE30, JP LRP-07, KAC SR25, LaRue OBR, LWRCI REPR, Ruger SR-762, Ruger Precision Rifle, S&W M&P10, SIG716, etc.). Older platforms such as Bushmaster .308 ORC, Remington R-25 and DPMS LR-308 are typically compatible in many configurations. See full compatibility list for exhaustive details.

Known incompatibilities

Not compatible with certain platforms (examples): AR-10 B, Springfield Armory M1A, Rock River Arms LAR-8, FN SCAR 17S, PTR-91, HK417, M14, FN FAL, HK91/G3 families. Always confirm fit with your specific rifle model.