Check the listing for details. EST Ejector Service Tool for Over and Under Shotguns with retainer disc ejectors. Condition: New. Listed at 40.00 USD. EST Ejector Service Tool for Over and Under Shotguns with retainer disc ejectors. 12 Gauge Barrels tested on Perazzi, Kolar Caesar Guerini and Beretta 694 over and under barrels. Subgauge for subgauge barrels on 12 gauge action only. Tested on Perazzi 12 gauge action frame in 20, 28 & 410 bore. Will not fit small action frames. Trap Combo is 12 gauge only, works for top single, bottom single and O/U barrel with a single tool. Makes removing and reinstalling ejectors safe and easy. Protects your thumb. Easy to compress and control ejector springs. Control keeps parts from flying around and getting lost. 12 gauge made of cast urethane resin, subgauge made of ABS like resin, will not scratch or mar barrel. 12 gauge available in clear Red Top and Black Bottom, Grey Top with Black Bottom, clear Blue Top with Black Bottom and all Black.Subgage available with Grey, Clear Red, or Clear Blue tops and black legs Comes with instruction sheet.