.920 BULL Barrel Thread Protector 1/2-28, Carbon Steel, Black



AR-15 BULL Barrel Thread Protector Nut for 1/2 INx28tpi Muzzle Threading, Black Carbon Steel.  Model::  BTPR03

Protects your Barrels fore end threading when you have to remove your AR-15's Muzzle Brake.

Fits standard AR-15 Barrel threading 1/2 INx28. Outer Diam: 0.915 IN

Outer width is for bull barrels, not standard barrels.  Outside textured for easy hand tightening.