Selling a few of my S&W M&P 15-22 50 round drum mag. New in the box. Never inserted in a rifle. Clear smoke. Retail at $80.00. Will let them go for $50.00 each (firm). I am in Hillsboro, OR. Can meet at Corn Pass Fred Meyers or by Target 185th. Would consider trades for some factory glock or magpul mags. Thanks.