This odd thread adapter allows you to thread an AR15 or other 1/2x28 threaded muzzle brake to your Yugo M92 massive thread of M26x1.5 LH. Machined steel with locking notches for detent and finished in Black Oxide. **(Muzzle brake to be used have a large enough inner diameter for the caliber)**FOR USE WITH .223/5.56 ONLY**Inner Diameter is .335"
