I'm almost in the same boat as you are except I sold my DPMS 24 inch stainless steal barrel and upper receiver to fund money for another project. I wish I only sold the barrel because now I would like to make a 16 inch close quarter’s combat rifle and I’m unable to find anyone that has a DPMS flat top receiver for sale. The only thing I didn’t care for with the 308 DPMS style rifle is that it’s hard to find a free float rail for them without spending $400.00 bucks or more. SWS makes a lot of nice rails for them, but their, to expensive for me. Do you know any 2 piece forearm’s that would work really well, that are pretty inexpensive?
I like the Eotech set-up with a BUIS, with the 3x mag.
Lots of luck with your rifle.
From,
Joe….