1/2x28 thread pitch 
	
The wrench flats for this design do not index with the top ports if you're anal about the install (but this does not affect performance.)
	
Works with 223 & 556
	
Does not fit 9 mil
	
Crush washer included
	
CNC machined heat treated steel
	
2.00" long
	
Weighs a super-light 2.8 ounces
	
Reduces recoil and muzzle climb
	
Front diameter is 2 cm
	
Bore diameter is 6.72mm
	
Listing is for one brake