well after waiting forever (ok 2wks actually) I finally got my first piston operated AR. She is a LWRC M6A2 14.7" with a permanently attached flash suppressor in 5.56 1 of 100 spartan edition. spiral fluted barrel, ambi saftey the bolt carrier group and the barrel extension of the rifle is coated with nickel-boron surface conversion that provides a hard permanent lubrication to the moving parts.