This is an FN® FS2000/SCAR 16S 5.56x45mm Magazine with a 10-Round Capacity.
This factory FN magazine features rugged construction and an extended baseplate, allowing it to be used in the FS2000, SCAR 16S, and AR-15’s such as the FN-15 series. Using an extended polymer baseplate, this magazine is compatible with the FS2000 and maintains the aesthetic of a larger magazine. A steel main tube delivers rugged durability. The matte black coating provides corrosion and glare resistance, further augmenting durability and ensuring a low-profile look. Low-friction polymer followers reduce internal friction and work in concert with the steel wire springs to provide reliable feeding of every single round.