Precision Reflex Flip-Up Front Sight Gas Block PRi .308 Armalite Elevation .750 Diameter Black. 308 Flip-Up Front Sight Gas Block w/Armalite Elevation features a cast iron foundation with an aluminum front post and it eliminates the shadow that an optic cast on a lower receiver when an illuminated scope is mounted above it. When you need to acquire your target quickly and accurately the PRi .308 Front Sight Gas Block w/Aluminum Post and Gas Block will be an essential addition to your weapon. The gas block included with this AR 15 Parts by Precision Reflex has a provision for your rifle's gas tube as an integral part of the sight and it locks when moved up. The Precision Reflex .308 Front Sight Gas Block w/Armalite Elevation features lightweight materials and an anodized aluminum front post for reduced reflection so that you have a great view all day long no matter what light conditions are present. Purchase your Precision Reflex .308 Front Sight Gas Block w/Aluminum Post today and go shoot targets like a pro Specifications for Precision Reflex .750 Diameter Flip-Up Front Sight Gas Block: Manufacturer: Precision Reflex Color: Black Condition: New 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 Size: 0.75 in Gun Type: Rifle Included Accessories: Standard Weather Resistance: Yes Attachment Type: Cross Bolts Package Contents: Precision Reflex .750 Diameter Flip-Up Front Sight Gas Block What firearm models does the manufacturer say Precision Reflex .750 Diameter Flip-Up Front Sight Gas Block is compatible with? The manufacturer suggests that Precision Reflex .750 Diameter Flip-Up Front Sight Gas Block is compatible with Armalite AR-10Precision Reflex 03-0025: Flip-Up Front Sight Gas Block PRi .308 Armalite Elevation .750 Diameter Black