My upper is a RRA 20" predator pursuit. My lower is a C3 defense. It shoots as good as the nut behind the trigger.
In all seriousness, this combination will shoot any quality ammo very well. Hand loads are out of this world. its only week point is the stock DPMS trigger that came with the parts kit. Its rock solid reliable if a little heavy. I will replace it when I can afford a Giesle.
.308 Howa 1500, 24" varmint barrel, Harris bipod Bell & Carlson MkII tactical stock. 4-14x50 tactical scope from Wonder Optics.
The manufacturers name on the lower receiver really doesn't mean much or matter much except maybe for resale value. What does matter is who made the barrel which might be one company or several. . For many rifles there is no marking as to who bored and rifled the barrel or who contoured and and chambered it .
It's very common for neither of those to be the company you buy the rifle from.