JMac Customs FRD-14F Flash Reduction Device w/ Cone Black 5.56. It is important to note that the flash cones are specific to the caliber of the firearm and it is necessary to verify proper alignment preferably with the assistance of a certified professional before using the device. Before installation it is crucial to follow all firearm safety measures. JMac Customs the manufacturer does not accept any responsibility for any damages injuries or malfunctions that may occur due to improper installation usage of incorrect cones or any modifications made by the end user. The FRD is only approved for use in its original purchased form from authorized dealers. To ensure proper installation the FRD should be tightly secured against the shoulder muzzle face or by using the detent notch tighten fully then back off until the notch engages. It is important to note that not all firearms are the same so it is necessary to ensure that the bore of your firearm is concentric to the FRD before discharging your firearm. Specifications for JMac Customs FRD-14F Flash Reduction Device w/ Cone: Manufacturer: JMac Customs Color: Black Fabric/Material: 17-4 Stainless Steel Barrel Material: Stainless Steel Package Contents: JMac Customs FRD-14F M14x1L Flash Reduction Device w/ Cone JMac Customs FRD14F13720FCX20556: FRD-14F Flash Reduction Device w/ Cone Black 5.56