Impact Guns provide excellent support. The firearm is excellent in all respects except for trigger pull which measures consistently >11.5 pounds. Bushmaster traded manufacturer of this weapon to Dakota Arms, so BM will not service and Dakota Arms says 11.5# is design and they cannot do anything about it. Currently they cannot even find parts. I am sure I will solve the trigger problem eventually, but probably not with Bushmaster's tech support who talk a good game but don't dig too deep of you find they arrogant and still think the trigger mechanism is an AR-15. One look tells you it is not an AR-15 trigger group. There is a reasonable after market fix by Bill Springfield, but you must send your trigger parts to them for work. Since I cannot find parts, I will not trust the mail with my only trigger group. Just so you know, with 11.5" pull, the best 100 yd group is hand size!
BUT, if you buy anything get it from Impact Guns, they are great