SN: AG0577. Modern production. 9mm with 4,4.5, and 5″ barrels. Bores are very good. Full ZRO Delta Modulus kit with back straps, tools, magwells, and additional slides and barrels. This kit gives you one gun that can be set up for concealed carry or as a race gun for range day and everything in between. Finish and grips are in very good condition. Overall very good condition.