Just a quick introduction, I spent 22yrs in the Army and retired in '90 then worked 23yrs on the tank ranges at Ft. Hood left there in 2013. First weapon I ever fired was back in '68 in basic training, an M-14. Had an M-14 all through my Vietnam tour. Never held an M-16 until the late 70's. Hopefully I can get some good information here about my planned conversion of my Glock to an SBR especially regarding what I need to do to be legal, would hate to have the ATF knock down my door in the middle of the night.