Made in the usa, san tan tactical pillar truss pockets for increased structural rigidity.It is cut from a single billet of 7075 -t651 aluminum with a shell deflector, machined in t markings, m4 feed ramps, and is machined to mil-spec standards.The upper is able to interface with all ar15/m16/m4 weapons systems and accessories.It is also compatible with all known battery assist levers.The stt-15 lite pillar does not include port door assembly.

Receiver Finish: Black Anodized
Sights: None, Optic Ready