Precision Reflex .875 Diameter Flip-Up Front Sight Gas Block .308 DPMS Elevation Black. 308 Flip-Up Front Sight Gas Block w/DPMS Elevation is a great looking way to make sure that you are firing some of the best rounds on the market. This Front Sight from Precision Reflex is made with a hard coated black anodized aluminum Steel pivot pins and #10-24 cross bolts with a standard steel A2 front post. The Precision Reflex Flip-Up Front .308 Front Sight Gas Block will eliminate the shadow that is typically cast onto an optical sight. For a great way to increase the speed at which you pick up targets choose the Precision Reflex Flip-Up Front Sight Gas Block. Specifications for Precision Reflex Flip-Up Front Sight Gas Blocks: Manufacturer: Precision Reflex Color: Black Sight Mounting Orientation: Top Mounted Sight Position: Front Caliber: .308 Winchester Gun Model: Armalite AR-10 Gun Make: AR Platform Armalite Front Sight Color: Black Rear Sight Color: Front Sight Only Deployable: Yes Fabric/Material: T6 6061 Aluminum/ Cast Steel Front Blade Height: 2.617 Gun Type: Rifle Included Accessories: Standard Weather Resistance: Yes Features of Precision Reflex Flip-Up Front Sight Gas Block: Front Sight Connects Directly to the Gas Block Flip-Up and Collapse When Needed Designed for .308 Winchester AR-Platform Rifles T6 6061 Aluminum Package Contents: Precision Reflex Flip-Up Front Sight Gas Blocks What firearm models does the manufacturer say Precision Reflex Flip-Up Front Sight Gas Blocks is compatible with? The manufacturer says that Precision Reflex Flip-Up Front Sight Gas Blocks is compatible with Armalite AR-10Precision Reflex 03-0023D: .875 Diameter Flip-Up Front Sight Gas Block .308 DPMS Elevation Black