Great quick detach. Same standard as other three lugs but at the fraction of the cost. Threads directly into B tubes and can be used with the D size booster or three lug adapter. (3-Lug Mount Muzzle Brake NOT INCLUDED)
Please see the 3 Lug maintenance video before using product, this will ensure that it is being used properly and will help avoid damage that can occur. Note that the 3 Lug mount is not designed for high pressured calibers. These are designed for low pressure rounds like 9mm or subsonic rounds.