This is a Hera USA Magazine known as the H3 Gen 2 chambered in 223 Remington, model 13.11/OD.
The HERA H3T Gen-2 magazines feature a transparent frame allowing you to quickly check your round count. Constructed of high impact reinforced polymer with superior springs" you can expect superb function from HERA magazines.
Features:
Polymer Body Construction
Steel Spring
Polymer Base Plate
Transparent Frame
