This Tactical Choke will provide incredible performance with breaching rounds, buckshot and rifled slugs. This tool will enhance accuracy and you will receive positive grip from the crenulated muzzle when used as a standoff tool. This eliminates the need to change muzzle devices when alternating ammunition from breaching rounds to buckshot or rifled slugs. Great for buckshot or rifled slug applications. The price is for a pair.  Expected  release date February 28, 2019.