600 rds been run on it so far. I keep my chit clean and well oiled. Have had rifle little over 4 months and have done 3 30 rd dumps back to back one time , 2 30rd controled pairs and 2 30rd 5- 7 rd bump fire off the shoulder, all the rest of the rd count has been intial barrel break in and zero/ target firing . Cleans easily and i have yet to see any wear (600rds aint alot) tactical edge arms has vids and specs. I got for 199.00 , but i also bought a stripped upper and lower and a barrel from them , owner was a little miffed i didnt buy an assembled model , but he knows he made money off parts.