JMac Customs 4C 22x0.75 4-Port Muzzle Brake for Shotguns Saiga Lynx VEPR Black. 75 4-Port Muzzle Brake for Shotguns. Each of these Muzzle Devices carefully crafted by JMac Customs reduce recoil muzzle rise and follow-up shot time so that you can stay on target and take down targets at a moment's notice. This JMac Customs 4C 22x0.75 Four-Port Muzzle Brake for Shotguns is machined from 17-4ph stainless steel and is 3.5" long (includes locking collar) with a black nitride finish for superior strength in any conditions. Equip the JMac Customs 4C 22x0.75 Four-Port Muzzle Brake for Shotguns to upgrade your gun for any application. Specifications for JMac Customs 4C 22x0.75 4-Port Muzzle Brake for Shotguns: Manufacturer: JMac Customs Color: Black Finish: Nitride Fabric/Material: 17-4PH Stainless Steel Threads per Inch: M22x0.75 Gun Make: Saiga Length: 2.5 in Features of JMac Customs 4C 22x0.75 4-Port Muzzle Brake for Shotguns 4 Port Muzzle Brake Package Contents: JMac Customs 4C 22x0.75 4-Port Muzzle Brake for Shotguns JMac Customs RRD-4C-22-SG-12: 4C 22x0.75 4-Port Muzzle Brake for Shotguns Saiga Lynx VEPR Black