Magpul PMAG 25 M118 LR/SR Gen M3 25-Round Window Magazine for LR-308, SR-25, Ruger Precision Rifle .308 Winchester - Durable Polymer Construction

The Magpul PMAG 25 M118 LR/SR Gen M3 is a 25-round magazine purpose-built for AR-10-pattern rifles and modern .308 Winchester match-grade platforms. If you're running a long-range or semi-precision rifle like the Ruger Precision Rifle, SR-25, or LR-308, and you're feeding longer-than-SAAMI match ammunition (up to 2.830" OAL), this is the magazine engineered for your gun. Magpul's polymer construction balances weight savings with durability—it's proven across military and civilian high-round-count use.

What sets the Gen M3 apart is the thoughtful details. Translucent witness windows on both sides let you count rounds at a glance, backed by a painted spring indicator visible from 1 to 25 rounds. The anti-tilt follower feeds reliably even in rapid-fire strings, while the constant-curve body geometry plays nicely with match ammunition geometry. A stainless steel spring (black-oxide finished to military spec) and aggressive front/rear texture panels make handling and reloading instinctive. The flared floorplate aids disassembly and mag changes without sacrificing pouch compatibility on most rigs.

Magpul included practical user-centric features: paint-pen dot matrices on the floor of each magazine body for your own marking system, and a snap-on Impact/Dust Cover to keep debris out during transport or storage. For shooters running precision .308 systems, competition rigs, or long-range hunting setups that demand reliable feeding with premium match rounds, the PMAG 25 M118 LR/SR Gen M3 is a no-nonsense choice.

Key Features

• 25-round capacity optimized for 7.62x51 NATO and .308 Winchester match ammunition up to 2.830" OAL
• Translucent windows on both sides with painted spring indicator for quick round-count verification
• Constant-curve internal geometry for smooth, reliable feeding
• Anti-tilt self-lubricating follower reduces double-feed and increases reliability
• Stainless steel spring (MIL-DTL-13924D black-oxide coated) for corrosion resistance and longevity
• Aggressive front and rear texture for secure grip and positive handling
• Flared floorplate aids magazine changes and disassembly without limiting pouch fit
• Paint-pen dot matrix areas on floor for custom identification marking
• Snap-on Impact/Dust Cover included for transport protection
• Durable impact- and crush-resistant polymer construction

Specifications

Frequently Asked Questions

What rifles is the PMAG 25 M118 LR/SR Gen M3 compatible with?

This magazine is designed for AR-10-pattern rifles and SR-25-pattern platforms, including the Ruger Precision Rifle, LR-308, SR-25, and many commercial clones (Armalite AR-10A, Bushmaster .308 ORC, Colt LE901-16S, DPMS LR308, JP LRP-07, KAC SR25, LaRue OBR, Les Baer .308, LMT .308, MWS, LWRCI REPR, Mega MATEN, POF P-308, Remington R-25, Ruger SR-762, S&W M&P10, and SIG716). It is NOT compatible with M14, FN FAL, or HK 91/G3-pattern magazines or rifles like the Springfield M1A, Rock River LAR8, Noveske N6, FN SCAR 17S, PTR-91, or HK417.

Can I use standard .308 Winchester ammunition in this magazine?

Yes. The PMAG 25 M118 LR/SR is designed to accommodate .308 Winchester match ammunition with overall length up to 2.830" OAL—this includes longer-than-SAAMI-spec match rounds. However, due to the optimized length geometry, this magazine may not drop-free from all lower receiver designs; you may need to manually remove it from some platforms.

What's included with the magazine?

Each magazine ships with a snap-on Impact/Dust Cover to protect the magazine and ammunition during storage or transport.

How can I tell how many rounds are in the magazine?

The Gen M3 features translucent witness windows on both sides of the body, plus a painted indicator on the spring itself. Together, they let you quickly identify the approximate round count from 1 to 25 without opening the magazine.