This mount is an ultra-sleek lightweight upgrade for your m1a rifle.Drop-in design provides 4.50" of rail space for affixing optics to your rifle.The low profile of the mount allows use of iron sights.Mount has milled opening for ejection clearing.Length: 4.50"Type: Side MountModel: M-14/M1A Scope Mount/V2Style: Low ProfileMisc: Picatinny RailingFinish: AnodizedMaterial: 6061 T6 AluminumPieces: 1Gun Type: RifleMount Type: Mil 1913 Picatinny RailRings Included: No