These magazines have been stippled to the pattern shown above.
The PMAG 30 AK/AKM MOE is a durable, lightweight, high reliability
30-round polymer magazine designed for Kalashnikov pattern rifles
(AK-47, AKM, AKS, and others) in 7.62x39 mm. It features a removable
floorplate, constant curve geometry, and a high-reliability/low-friction
follower for the performance you expect from a PMAG.