<b>Adapter Size:</b><br /> Adapter 1: .177 to .189 cal<br /> Adapter 2: .195 to .225 cal<br /> Adapter 3: .210 to .240 cal<br /> Adapter 4: .265 to .315 cal<br /> Adapter 5: .280 to .354 cal<br /> Adapter 6: .335 to .359 cal<br /> Adapter 7: .500 to .560 cal<br /> Adapter 8: .570 to .635 cal<br /> <br /> <b>Bore Sight :</b><br /> Laser Class: Class IIIA<br /> Length: 6.1"<br /> Weight: 1.3 oz.<br /> Head Diameter: 16mm<br /> Tail Diameter: 5mm<br /> Compatible Firearms: .177 - .50 Caliber<br /> Color: green<br /> Wavelength: 532nm<br /> Battery: CR2（non rechargeable)<br /> Output Power: ≤ 5mw<br /> <br /> <b>Package includes:</b><br /> 1x Bore Sight<br /> 8x Adjustable adapter<br /> 2x Screw for adapter<br /> 1x Screwdriver<br /> 1x CR2 battery<br /> 1x Manual<br /> 1x Storage box<br /> <br /><b>WARNING: </b><br /> <br /> <b>*Keep laser away from eyes. </b><br /> <b>*Before zeroing your scope, make sure that the firearm is unloaded and pointed in a safe direction. </b><br />