• Classic 4 Vent Muzzle Brake  with Wrench Flats, 1/2 x 28 ID Thread
• Black Oxide Finish
• Precision machined from 4140 ordnance grade steel 

• Outside Diameter = .850"
• Overall Length = 1.750"
• Weight  = 2.6oz

Made in USA.

Photos taken with a 16" 5.56 barrel using 55 gr FMJBT XM193 - Federal American Eagle ammo