The Magpul® PMAG® Gen M3 AR-15 .300 AAC Blackout 20-Round Magazine is a purpose-built rifle magazine, designed to deliver enhanced maneuverability and improved concealment with AR pistols and SBRs. Constructed of a next-generation, impact- and crush-resistant polymer with aggressive front and rear texturing, this magazine offers improved dexterity for faster reloads and ultrareliable performance in harsh tactical environments. The steel wire spring and polymer follower deliver smooth feeding performance, while the easily removable slim floor plate allows for quick disassembly when maintenance and cleaning are required. Better yet, the integrated paint pen dot matrix allows for marking and identification in fast-action environments. Made in the USA.