Precision machined from ordnance grade steel and intended to interface in shut tolerance with the aluminum stock chassis. 1913 Picitanny rail over the pistol grip is engineered to supply shut eye reduction for night vision modules. Alan Buckowing August 21st, 2020 I've an M1A that I place within a Sage https://trentonlcjdm.shoutmyblog.com/29050569/m1a-ebr-secrets