JMac Customs Blast Diversion Shield Alpha Black. These Muzzle Devices by JMac Customs divert side blast/concussion forward away from your position limiting side blast/concussion and providing a more comfortable shooting experience. The JMac Customs Blast Diversion Shield 12in Alpha is compatible with a wide range of suppressor adapters and adaptor mounts making it a versatile addition to your favorite firearm. Divert side blast away from your face and away from aggravating situations with a JMac Customs Alpha Blast Diversion Shield Attachment. Specifications for JMac Customs BDS-12 Blast Diversion Shield - Alpha: Manufacturer: JMac Customs Weight: 3.2 oz Finish: Nitride Condition: New Color: Black Fabric/Material: 17-4PH Stainless Steel Gun Make: Kalashnikov Features of JMac Customs BDS-12 Blast Diversion Shield - Alpha Diverts Blast Downrange away from the shooter uses industry standard mounts compatible with our X-Series Muzzle Devices Package Contents: JMac Customs BDS-12 Blast Diversion Shield - Alpha JMac Customs BDS-12: BDS-12 Blast Diversion Shield Alpha Black