I know your going to ask, so lets get that out of the way, yeah thats the ArtPrimo Extinguisher cap...
Art Primo Extinguisher Cap
Increase your reach with an AP Extinguisher Cap! This cap projects paint three to four feet in an intense stream and is made EXCLUSIVELY for use with MOLOTOW HIGH PRESSURE, PREMIUM PLUS and BURNER CANS.
Cap Compatability Charts: