* Impact and crush resistant polymer construction * Constant-curve internal geometry for smooth feeding * Anti-tilt, self-lubricating follower for increased reliability * Multi-use Impact/Dust Cover to protect feedlips from impact damage, keep dust and dirt out of the magazine during storage, and can be used as a tool for easy cartridge removal * Black-oxide coated (MIL-DTL-13924D) USGI-spec stainless steel spring * Transparent MagLevel windows on both sides of the body along with a painted indicator on the spring allows for easy determination of rounds remaining * Textured gripping surface and flared floorplate for positive magazine handling and easy disassembly