HungryCat 0 Posted October 11, 2010 Report Share Posted October 11, 2010 in this picture http://www.chaosus.com/cgi/commerce.cgi?preadd=action&key=EXTENDED_QUAD_RAIL "top rail extending over 13" in length" I must remove rear iron sight or not compare with UTG http://store.carolinashooterssupply.com/servlet/-strse-251/utg-saiga-12-quad/Detail it not necessary to remove rear iron sight but top rail too high . ( not good for optic mount ) Quote Link to post Share on other sites
PRISONSHANK 70 Posted October 11, 2010 Report Share Posted October 11, 2010 The Chaos quads have a spot milled out in the top rail that the rear sight blade fits into. You do not have to remove any material to install the Chaos forearm. Quote Link to post Share on other sites
cvhanh20 1,052 Posted October 11, 2010 Report Share Posted October 11, 2010 You do need remove the rear sight, our rail sits very low, the cut out is for the hump of material that the rear sight sits in. Quote Link to post Share on other sites
HungryCat 0 Posted October 12, 2010 Author Report Share Posted October 12, 2010 I will purchase this http://www.chaosus.com/cgi/commerce.cgi?preadd=action&key=EXTENDED_QUAD_RAIL But I am in THAILAND. I think I can buy it by http://www.shopatusa.com/ or http://www.shop-usa4thai.com/default.asp Thank for information . Quote Link to post Share on other sites
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