 Flash suppressors are a common, partial solution to this problem, although even the best flash suppressors are hard put to deal with the excess flash from the still-burning powder leaving the short barrel (and they also add several inches to the length of the barrel, diminishing the purpose of having a short barrel in the first place).The shorter the barrel, the more difficult it is to hide the flash; the AKS-74U has a complex, effective muzzle-booster/flash suppressor, yet it still suffers from extreme muzzle flash.The typical carbine is the pistol-caliber carbine.