Spike's Tactical Barking Spider2 Brake, 556NATO, Fits AR-15, Black Finish SAKB0100
Specifications:

Type	Muzzle Brake
Model	Barking Spider2
Dimensions	3.75" L
Size	5.56mm
Material	4140 Chromoly Steel
Action
Trigger
Safety
Thread Pattern	1/2"-28 tpi
Finish	Black
Bolt Type
Hand
Hammer Type
Max Capacity