03-25-2012, 09:40 PM
I am disassembling the upper and will use the lower for another build. There is currently no gas block on the rifle. I ran it with an Adams Arms piston kit, but have removed that and sold it alreadly. It can be run with either gas or piston. The rail will accomodate a piston set-up. The muzzle brake is also for sale. It is a BWA. It does a better job of reducing recoil than anything I know of. It is like shooting a 5.56. The rail is a Daniel Defense 12.0 FSPM with Tango Down rail covers and a Magpul AFG.