The PMAG 20 LR/SR GEN M3 Window is compatible with 7.62×51 NATO (.308 Winchester) M118LR / Mk 316 match ammunition and gives SR25 / M110 pattern rifles a true 20-round profile with the proven feeding geometry, long-life stainless spring, and anti-tilt self-lubricating follower that keep rounds moving when it matters. Impact- and crush-resistant polymer construction shaves weight while protecting internals and the translucent MagLevel™ windows provide an instant visual round-count so you stay aware and in control. Lightweight, durable, and engineered for precision platforms, the PMAG 20 LR/SR GEN M3 Window is the go-to mag for shooters who demand capacity, reliability, and situational awareness.
Made in the USA.
Features
- 20-round capacity for SR25 / M110 pattern rifles chambered in 7.62×51 NATO (.308 Winchester)
- Compatible with M118LR / Mk 316 or other .308 Winchester match ammunition with a max OAL up to 2.830"
- Anti-tilt, self-lubricating follower, long-life stainless spring, and constant-curve internal geometry for smooth, reliable feeding
- Impact- and crush-resistant polymer body engineered for long service life and field abuse
- Dual MagLevel windows with painted indicator coil for instant visual round-count confirmation
- Flared, easy-to-grip floorplate for fast handling and improved extraction from tight pouches
- Low-profile ribs and aggressive texture deliver positive control in all conditions
- Paint-pen dot matrix on the bottom panel enables rapid load identification in the field
Caliber - 7.62x51mm / .308 Winchester, M118LR / Mk 316
Platform - AR10 / SR25 / M110
Capacity - 20
Weight - 5.8 oz.
Length, max - 6.5 in.
Compatibility - Armalite AR-10A, Colt LE901-16S, CORE Rifle Systems CORE30, JP Enterprises LRP-07, KAC SR25, LaRue OBR, Les Baer .308, LMT .308 MWS, LWRCI REPR, Mega Arms MATEN, Noveske Gen III N6, POF P-308, Ruger SR-762, S&W M&P10, SIG716, and others*
Other Specs
Compatible for use with 7.62x51 M118LR / Mk 316 or other .308 Winchester match ammunition with a max OAL of 2.830"
*NOTE: Compatible with older model Bushmaster .308 ORC, Remington R-25, and DPMS LR308 rifles, but not optimized for bolt lock functionality with newer models based on the DPMS GII design. NOT compatible with Armalite AR-10B, Springfield Armory M1A, Rock River Arms LAR8, FN SCAR 17S, PTR-91, HK417 or any other rifles that utilize M14, FN FAL, or HK 91/G3 patterned magazines.
To be able to accommodate longer than SAAMI-spec match ammunition, this magazine may not drop free from all makes of lower receivers.
