The rifle is a Sig Sauer M400 Tread Semi-Automatic 5.56mm.
Preowned, but in great condition overall. Gentle cosmetic wear from previous use.
16" barrel, 30-round capacity with a 7" picatinny rail, MagPul furniture with 1/8" twist rate, ambidextrous safety and an OD Green stock.
Comes as pictured with one magazine. 
Come check it out today at West Mountain Pawn in Kernersville!