TacFire AR-10 Dust Cover Steel Black TacFire's 308 Dust Cover Seals The Ejection Port (Which Allows Spent Brass To Exit The Upper Receiver after Firing) From Allowing contaminants Such as Sand, Dirt, Or Other Debris From entering The Mechanism. Type: Dust Cover Model: AR-10 Dust Cover Dimensions: 3.31" L X 0.88" H Size: .308 Material: Steel Finish: Black
