For sale is an Arsenal SLR-106F chambered in 5.56 that has been upgraded with a surefire brake, and kns piston to be able to run with a surefire suppressor. Gun is in good condition with normal wear. Front sight base has been grounded in order to be able to mount the brake, gun runs flawlessly both suppressed and unsuppressed. Asking $2,200 no trades please. ThreeFourSix-351-0826