We are going to be building some uppers that are using a flip up front sight gas block, on our normal upper design with a carbine length tube.
Company "A" builds a reasonably priced flip up rear sight, that is easy to get a lot of for production, but occasionally the recoil will cause the sight to flip down.... not good.
My question, who makes a reasonably priced flip up rear sight, that i wouldnt be ashamed of placing on a modest run of production rifles?