I have two XD40 (.40S&W) 9 round mags I'd like to sell or trade for one 12 round extended with a black X-Tension. Cash Price is $20 each. ( New they are $30 each) These are new, just dont have the package. I will do paypal, buyer pays actual shipping costs. Thanks for Looking! Mag with out ext. is what I have forsale, the other is what I want. 2 for 1.