Hinderer XM-18 3.5" Non-Flipper Spanto, M390 and FDE G-10 I think this is a Gen4. It is not the latest - no tri-way pivot, no lockbar insert. Unused. Original box. $325 SOLD PayPal accepted. Price includes PayPal fees and priority mail shipping within the U.S. (all of it). Feel free to PM or email (kkirkwood[at]gmail[dot]com) with questions or offers. Thanks.