Check the listing for details. 40mm MK19 Mandrel for Laser Borelight System. Condition: Used. Listed at 14.99 USD. 40mm MK19 Mandrel Condition: NEW 40MM MK19 MANDREL for use with laser borelight system. Made in the United States by Insight Technology Inc. of New Hampshire.This mandrel is used in the Laser Borelight System (LBS) to laser boresight the MK19 or (MARK 19) AMERICAN MADE40 MM BELT-FED AUTOMATIC GRADE LAUNCHER which was used in service from 1968-present in VIETNAM WAR, PERSIAN GULF WAR, WAR IN AFGHANISTAN, IRAQ WAR 2006 LEBANON WAR, TURKEY-PKK CONFLICT AND THE MEXICAN DRUG WAR FAST, NEXT DAY SHIPPING! Local Pick Up Available See picture for details, and feel free to contact us with questions or concerns.Should anyone wish to come by the warehouse in Rochester, NY area to look at any of our items for sale, please feel free to contact us. Thank You!