10/20 Magpul PMAG 20LR/SR GEN M3 — .308/7.62 (MCT)
The trusted PMAG 20LR/SR — permanently modified to a 10-round capacity for compliance in restricted states.
Key Specs:
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Caliber: .308 Winchester / 7.62×51 NATO
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Capacity: 10 rounds (in a 20-round body)
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Color: MCT (Medium Coyote Tan)
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Material: Impact- and crush-resistant polymer
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Fits: SR25 / M110 pattern rifles (see compatibility below)
Modification Details:
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Permanently blocked to 10 rounds — cannot be converted.
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Internally modified with the floorplate sealed using industrial adhesive.
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Maintains full spring travel for reliable feeding.
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External design and function remain unchanged.
Magpul PMAG 20LR/SR Features:
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Constant-curve internal geometry for smooth feeding.
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Self-lubricating, anti-tilt follower for enhanced reliability.
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Stainless steel spring for corrosion resistance.
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Textured grip surface and flared floorplate for improved handling.
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Lightweight — about half the weight of standard steel mags.
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Made in the USA.
Compatibility:
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Optimized for SR25/M110 rifles and mil-spec .308/7.62 ammo (< 2.820″ OAL).
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Also fits: S&W M&P10, DPMS LR308, LWRC REPR, LaRue OBR, Bushmaster ORC, Remington R-25, POF P-308, JP LRP-07, and more.
⚠️ Not compatible with Armalite AR-10, FN SCAR 17S, RRA LAR-8, or HK91/G3 mags.
Note: Impact/dust cover not included — available separately.


Laurence (verified owner) –
Works as intended only holds 10 rnds no way for 11 to get in there but still leaves enough space to insert a full mag on a closed bolt
Dan (verified owner) –
Had no malfunctions or issues ..bought 6 of these total (2 black, 2 FDE and 2 FDE with a window ..looks way better than the 10 round mags as well pretty awesome!