• Standard M1913 Picatinny rail configuration

• Anodized flat black aluminum

• Mounting does not require alteration of AR Handguard heat shields

• Includes socket head mounting screws with special flat nuts for an unobrusive mount

• Includes ERGO LowPro Rail Covers

• Overall Length - 6.13 inches

• 15 Slots

• 2.250, 3.750 - 4.140 Inch Hole Spacing