Originally Posted by 556plinker
Will the quadrails accept the triangular endcap???? Or am I going to have to take the sight off and replace it with a round one? Probably a DUMB question but I'm new to the AR platform so please forgive me.
Most likely, the triangle endcap will not work with most quad rails. BUT, I do know for example that the UTG free floating quad rails I got mount outside and around the endcap, not in it, so they MAY work, I just don't know.