They are decent rifles. I have built quite a few rifles on DPMS lowers, uppers, and LPKs and one or two DPMS barrels. I have no complaints.
And quite a few of your custom AR builders use DPMS parts. There is a group of people on AR15.com who jump in to bash DPMS products whenever they have the chance but I seriously doubt they have any actual first hand experience with them. You know the type, if it's not Colt and overpriced it is crap.
I find it very funny when some of the DPMS haters rant about DPMS parts and then name one of the custom builders as makers of excellent firearms when I know for a fact that several of them use DPMS parts in their custom builds. None use DPMS barrels because they are after all, production grade barrels, but there is not a darned thing wrong with their parts or firearms. YOu did not mention a price so that is hard to say if your particular rifle is worth it or not, but I would say this, if you are considering this rifle as a true match grade rifle for serious competition, you had better not get your hopes up on winning any BR matches with a DPMS barrel. They are good enough for what they are, but if you want to win you had better be using one of the real match grade barrels like Lilja, Pac-Nor, or others of that ilk, not production grade rifles using production grade barrels. A true super match SS Pac-Nor barrel will easily run you $500 alone, and that is just the barrel, bolt, and barrel extension.
I would guess a DPMS match barrel would be capable of 1/2 to 1 MOA accuracy, but that will be good for a last place finish if in a real BR competition. To even be serious about doing that you are going to have to have at worst a 1/4 MOA barrel and do some standard tuning such as truing the front of the receiver as well as a lot better trigger, which can run you around $300 for the trigger alone, things and parts you will not find on any production grade firearm even if they are calling it a bench rest match rifle.
