Going through dad's stuff and offering this Sons of Liberty M4 heavy barrel full magpul rail. chambered 223/5.56 cal adjustable butt stock 1 30 round mag.  Less than 100 rounds fired through gun. well kept and oiled gun fires very well.  Life Time Warranty goes with the gun.  SOL is based out of Texas and are very responsive and helpful company.  Gun is very accurate.  Just trying to clear some of Dad's old things he left behind.