FN America FN Spring Cash Rebate Extended Posted on March 18, 2019March 18, 2019 by Robert Nagel 18 Mar Purchase a FN 509, Five-Seven, or FNX-45Tactical and get Free mags! Patriot Ordnance Factory AR-15 Pistol & Revolution DI Rifle in 308 Arrive Purchase a SigSauer M17 and get (2) free (21)Rd mags through June 30th