The Military Arms Channel discusses the process of converting a Glock 17 into a Glock 17 SBR (Short Barreled Rifle).
“Turning your Glock into a short barreled rifle is easy to do. The Glock SBR makes for a very handy carbine that’s light weight, reliable and easy to conceal (where legal). It will take about 8 months to make your Glock 17 SBR but in my opinion it’s worth the wait. It’s one way to get a Glock carbine that Glock doesn’t seem interested in making that people keep asking for.”