Magpul PMag 40-Round Magazine for AR-15

40-Round AR-15 PMAG

The Magpul PMAG 40 AR/M4 GEN M3 is a 40-round polymer magazine for AR-15 and M4-pattern rifles chambered in 5.56x45mm NATO. It holds a third more than a standard 30-round magazine, so you reload less often on the range, in training courses and during competition stages. It is made by Magpul Industries in the USA, the company whose PMAG became the standard polymer AR magazine.

Features

• 40-Round Capacity — The extended body holds 40 rounds of 5.56x45mm, ten more than a standard AR-15 magazine.
• GEN M3 Design — This is Magpul's third-generation PMAG, marked GEN M3 on the body and built to fit a wide range of AR-15 and M4-pattern lower receivers.
• Polymer Body — The magazine is molded from Magpul's polymer instead of aluminum, so it resists dents that can stop a metal magazine from feeding.
• Anti-Tilt Follower — The follower, the part that pushes cartridges up toward the chamber, is shaped to stay level as the stack rises and falls.
• Textured Grip Surfaces — Raised panels and ribbed edges along the body give your hand something to hold during a reload, including with gloves on.
• Flared Floorplate — The extended lip at the base gives your fingers a place to pull a stuck magazine from a pouch or the rifle.
• Dot Matrix Marking Panel — A textured patch near the base takes paint pen or marker, so you can number magazines and track which ones give trouble.
• Molded Date Indicator — A small date wheel molded into the side shows when the magazine was made.
• Made In USA — The body is stamped Magpul Industries Corp and Made in USA.

Build And Compatibility

The PMAG 40 is marked for 5.56x45mm and fits standard AR-15 and M4-type rifles that accept the common AR magazine pattern. It comes in black polymer with the caliber, model and generation molded into the body, so a mixed pile of magazines is easy to sort. A 40-round magazine sits longer below the rifle than a 30-rounder, which matters when shooting prone from the ground or fitting standard magazine pouches. Check that 40-round magazines are legal where you live before ordering.