This is a Amend2 Magazine chambered in 223 Remington, model AM2556MOD2BLK30.
The Amend2 30-round magazine is a sturdy" reliable AR15/M4/M16 magazine made of advanced polymer material. It is light" durable and an excellent alternative to the standard M4/M16 USGI aluminum magazines.
Features:
Anti-Tilt Super Follower
Made in the USA
Heavy Duty Stainless Steel Spring
Impact Resistant Polymer