What size riser to get (medium or high) for rifle with a A2 stock(see below), eventually im going to run a 15in troy rail with magpul buis and want a perfect co-witness if possible, optic is going to be a poor mans aimpoint aka trs-25. Im very excited to get back in the ar game after years without one couldn't pass up on a brand new ar that wasn't Chinese for $500.00 from a non site sponsor.




















































