MANTICORE NIGHTBRAKE 26X1.5LCOMPENSATOR FITS YUGO KRINKOVFEATURES:-1/2x28 threads-Designed specifically for the 26x1.5 left hand thread on the muzzle of the Yugoslavian M92 & M85 Krinkov rifles & PAP series of pistols-18 ports distributed around the upper 270Adeg of the device help stabilize & reduce exiting gas pressure-Will clear any projectile up to .311" in diameter-Machined from 8620 steel-Black