Manufacturer Part # R0832. GLOCK G19 Gen 5 / G19X / G45™ (or compatible). Model RAMJET. AFTERBURNER + RAMJET (GEN 5), BRONZE. Installed onto a Glock™ G19™, the AFTERBURNER™ + RAMJET™ combo increases the overall length of the slide to a G17 ® allowing compatibility with all G17 holsters.