- Next-generation impact and crush resistant polymer construction
- Modified dimensions allow for wider compatibility with non Colt-spec STANAG 4179 platforms
- Constant-curve internal geometry for smooth feeding
- Anti-tilt, self-lubricating follower for increased reliability
- Long life USGI-spec stainless steel spring, black-oxide coated (MIL-DTL-13924D)
- Anti-glare translucent MagLevel windows on both sides of the body along with a painted indicator on the spring allows for
easy determination of rounds remaining from 1 to 25
- Ribbed gripping surface and new aggressive front and rear texture for positive magazine handling
- Paint pen dot matrix panels on the bottom of the body to allow for identification marking
- Flared floorplate aids magazine handling and disassembly yet is slim enough for use with many double and triple pouches
- Pop-off Impact/Dust Cover to minimize debris intrusion and for ammunition protection in storage and transit
- manufacturer code: MAG577
