At 2000rds per barrel, I'd be buying about 6 barrels a year! I've had mine for 3yrs and still going strong! Bushmaster or DPMS-both are excellent mfgs. with excellent track records. I'd bet my life on whichever I happened to grab first!
"It is always better to be judged by 12 than carried by 6"
"Peace sells....but who's buying"