Ar15 complete upper SAA upper sportsmans guide m4 profile barrel unknown freefloat rail(very sturdy and solid) its 10 inches. covers gas block yankee hill lo pro gas block Yankee hill phantom flash hider magpul mbuis gen 2 rear site magpul XTM rail covers. both sides and part of the bottom. will throw in a few pmags. never used. started another build cant finish it. time for it to go. 350 bucks.