stendo /ˈstɛn.doʊ/adjective 1noun 1 adjective1 •(slang) extended, esp. the cartridge capacity of a magazine.Have you tried out different aftermarket stendo mags or just oem glock? How she run? — 2020 noun1 •(slang) a magazine that holds more cartridges than is standard, esp. that of a Glock handgun.I just received the Thomas Machine and Design Mlok adapter rail for my Ruger PC. Shown here with a glorious stendo thanks to Freedom Week and Judge Benitez. — 2019
