Less than 6 months old, perfect condition. I went to a different mount. This is the mount and the riser that provides an absolute co-witness. The setup goes for around $94 new. Priced to move at $65 shipped, or trade towards a 10/22 in rough shape, or I'll add cash to a HBAR/composite stock 10/22 (in 22LR, quality .223 or .308 ammo, or ????? Shoot me any reasonable offer. Thanks for looking. PS this is on a few other sites, so first email/pm by time stamp with 'I'll take it'