For sale is my Sig MPX with 8" barrel and collapsable pistol brace. Has been upgraded with Radian Raptor charging handle and Battle Arms Development ambidextrous selector. Comes with original box and springs, original selector, a Mil-STD 1913 rail adaptor section for the keymod handguard and one 30 round magazine. Asking $1450. Eotech and Magpul Pro back up sights not included but is negotiable if the price is right. Not interested in trades at this time, just looking for cash.