This 2011 was built by the Master Pistol Smith that built all the STI Guns before he retired. Everything on this gun is the same or better quality than a modern Stacatto. Had a 2 pound trigger all atlas springs, ported Island barrel, SIGs premier RDS, Grip Safety Pinned, so much more and shoots and returns to Zero like an Atlas. Over 4k invested asking $2500 OBO 3k Trade. Call or text 361-445-8905