The Magpul PMAG 20 AR/M4 GEN M3 is a compact detachable rifle magazine built for firearms chambered in 5.56x45 NATO or .223 Remington. This exact variant has a 20-round capacity and an Olive Drab Green polymer body, giving shooters a shorter alternative to a standard 30-round magazine while retaining the functional design of the GEN M3 series. Its reduced 5.6-inch maximum length makes it practical for shooting from the prone position, working from a bench, or using a rifle with a bipod or support bag where a longer magazine may contact the ground. The impact- and crush-resistant polymer body incorporates reinforced feed lips, an over-insertion stop on the spine, and modified external dimensions for compatibility with a broad selection of STANAG 4179-pattern firearms. Compatible platforms include the AR15, M4, M16, SCAR MK16 and 16S, HK416, MR556, M27 IAR, IWI Tavor, and other rifles designed around this magazine pattern. Inside, constant-curve geometry works with a self-lubricating anti-tilt follower and long-life stainless steel spring to promote smooth, consistent feeding. Aggressive front and rear texturing and low-profile ribs provide a secure gripping surface during loading, removal, and magazine changes. Paint-pen dot-matrix panels molded into the lower body allow the magazine to be marked for ammunition type, ownership, or identification without altering its basic configuration. A slim, flared floorplate supports positive handling and can be removed for routine inspection and cleaning while remaining suitable for many double- and triple-magazine pouches. Weighing four ounces when empty, this American-made magazine combines useful capacity, a compact profile, and broad firearm compatibility in a distinctive Olive Drab Green configuration.Specifications and Features: 20-round capacity Olive Drab Green finish For 5.56x45 NATO and .223 Remington Impact- and crush-resistant polymer body Constant-curve internal geometry Self-lubricating anti-tilt follower Long-life stainless steel spring Over-insertion stop and reinforced feed lips Flared removable floorplate Maximum Length: 5.6 inches Product Weight: 4 ounces Made in the USA Brand: Magpul Series: PMAG 20 AR/M4 GEN M3 Product Type: Detachable Rifle Magazine Manufacturer Part Number: MAG560-ODG UPC: 873750007946