The QCB has been cut from solid stainless steel bar stock for greater resistance to heat and burnout. The thread end of the brake tapers down to a .750" diameter. The brake comes with a selection of spacer shims to set the timing of the brake. The 3 holes should be at the 1 O'clock position when tightened into place. Tighten the brake into place using a round screw driver in the 1st slot closest to the barrel.
Caliber: 5.56mm (223 Remington)
Thread Pitch: 1/2"-28"
Length: .95" dia. X 2.05" long
Material: 304 Stainless Steel
Finish: Matte Black or Stainless
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