Glock 18C (Photograph: Vickers Tactical) While there were some early experiments with adding an extended barrel with ports for that very same result, this product of G18 didn’t fit in holsters super nicely. I use the Mech Tec Programs carbine conversion for my Glock 20 in 10mm. Will work very https://glock-18c-parts-kit62840.blue-blogs.com/32916199/not-known-facts-about-glock-18-upper