Hey! I’ve been lurking around for a while but have a question about ejection, I’ve searched and can’t really find what I’m looking for. I have an ar15 parts gun that ran perfect with a semi auto bcg and standered buffer ejection was between 3 and 4 o’clock, I wanted to increase reliability and dependability so I installed a bcm bcg and now it looks like ejection is at the 2oclock range but I have brass marks on my casing deflector so I’m not sure what’s going on if the casing is bouncing off or what

So my question is to make the gun operate properly do I need a heavier or lighter buffer...

Thanks David