Maryland is defending SB 334, which will block future sales and transfers of many Glock and Glock-style pistols beginning January 1, 2027. IMG Duncan Johnson The constitutional fight over Maryland’s Glock ban comes down to one question: Can the state ban law-abiding citizens from acquiring some of America’s most popular handguns because criminals can illegally modify them with an already-prohibited machinegun conversion device? Gun-rights groups…