Shipping & Compliance
- This item cannot be shipped to California under California state law (SB 1263).
- Magazine capacity is restricted in certain states. We do not ship this item to states where its capacity exceeds the legal limit -- affected orders are blocked automatically at checkout.
The PMAG 20 LR/SR GEN M3 Window (MAG1429) is Magpul's 20‑round 7.62 NATO / .308 Win magazine for SR25/M110‑pattern rifles, with MagLevel windows and a painted spring coil so you can see remaining rounds. GEN M3 internals: anti‑tilt follower, stainless spring, constant‑curve body, crush‑resistant polymer. Magpul optimized it for SAAMI‑spec ammo and lists a long compatibility chart (KAC SR25, SIG716, M&P10, and others). It is not for M14, FAL, HK91/G3, SCAR 17, or Armalite AR‑10B magazines. To fit longer match ammo, it may not drop free from every lower. Made in the USA.
PMAG M3 WINDOW 7.62 20RD BLK
- Model: 20 LR/SR GEN M3
- Caliber/Gauge: 7.62 x 51mm | 308 Win
- Capacity: 20
- Finish: Black
- Overall Length: 12
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