I’m having issues with the bolt catch on my rifle. The bolt won’t lock back on an empty magazine. The bolt catch appears to not be catching the follower on the magazine. There also seems to be more play (forward/backward) on the bolt catch when I move it with my hand. Anyone had this issue before? The only things I can think of is bolt catch and/or detent are bad, or the lower is not properly machined, allow the catch to move just far enough back not to grab the follower.