Glad to hear you are going with Bushmaster. As a cop, I was allowed to carry my own AR. DPMS had a supposedly good rep, so ordered up a heavy barrel CAR-15: what a freaking joke. Shot a foot high at 50 yards with iron sights with the front sight raised so high out of the ears it wobbled.
Gun went back to them twice (at my expense) before they figured out that SHORT BARRELLED ARs NEED SHORTER CARRY HANDLES. Once they did that, we thought problem would be solved. NO, it still shot way high at 50, and at 100 it was ridiculous. Sent the gun back to the owner of DPMS, who sent it back to me saying it was fine......he sent some "test targets" of cloverleafing 5 shot groups fired with a scope. I shot it with 5 or 6 brands using various weights of bullets, and had two co-workers do the same (one of which is a former Marine sniper, currently a SWAT sniper) to rule out me doing anything wrong. At 50 yards the POS was STILL 6" high with sights as high as they would go, and the groups were around 4" in the best case. Forget 100 yards, I could do better with my Glock 22.
Called the owner, and we went around like two cats in a sack. He wouldn't budge claiming his groups were legit......I wouldn't budge because with the same ammo only open sights none of us could get the gun to shoot lower nor group. Finally I told him to take his POS back, I wanted a refund. Sent the gun back, he kept 25% of my money for a "restocking" fee. I called to complain, he told me to go screw myself. I responded by telling him I'd post about Don't Provide Much Service on every website I could find whenever the subject of ARs came up, and emailed our agency head to FORGET giving DPMS a chance at a Natl contract; DPMS ain't authorized!
We have 2 short barrelled Bushies in my office that did have issues, but Bushmaster fixed them ASAP at no cost and paid shipping both ways. As a side note, both these guns with law enf short barrels shoot groups so small with iron sights or Aimpoint type sights that I won't post the group sizes here, none of you would believe it.
Some people like DPMS. However, when they refuse to pay shipping like 5 times, don't make it right, steal my money, and call me a liar, I have to assume they'll do the same thing to others.......and my life depends on my rifle (can you spell Heckler and Koch).
Enjoy your Bushmaster!
RR