Osprey Global ARB-OSP-12GA 12 Gauge Boresight Arbor Works with Green 223 Boresight, Brass - Walmart.com
A U.S. Army Master Gunner Student, assigned to 3rd Squadron, 16th Calvary Regiment, carries a M829A4 sabot tank round to load into the loader hatch on a M1A2 SEP V2 Abrams Tank