Promag Oem, Pro Rm40sl Mag Ar15 5.56mm Roller 40rd Stl Lined

This replacement or spare magazine is compatible with your ar-15.It is constructed of dupont zytel polymer with anti-tilt mag follower and mag spring formed from chrome silicone wire.Made in the usa.

Caliber: 5.56x45mm NATO
Capacity: 40rd
Finish: Black
Model: OEM
Material: DuPont Zytel Polymer
Model Fit: AR-15
Capacity: 40