Hogue AR15/M16 Alum. 4.5in. OAL 3 Gun Free Float Forend Extension w/ Accessory Attachments Black. 4.5in. OAL 3 Gun Free Float Forend is designed to work with either carbine length or mid length free float forends and fit over low-profile gas blocks such as the DPMS Micro .750 (15088) or DPMS Micro .936 (15089). Forend extension tubes must be used with Hogue forends and must be installed on the rifle before installing the forend. Specifications for Hogue AR15/M16 4.5in. Free Float Forend for 3 Gun Competitions: Manufacturer: Hogue Color: Black Gun Model: M16 AR-15 Gun Type: Rifle Handguard Type: Free-Float Gun Rail: Standard Condition: New Additional Features: w/ Accessory Attachments Included Accessories: Standard Country of Origin: USA Quantity: 1 Features of Hogue AR15/M16 4.5in. Free Float Forend for 3 Gun Competitions: Durable aluminum material 4.5in overall length Great for three gun competitions Free float forend extension w/ accessory rails Package Contents: Hogue AR15/M16 4.5in. Free Float Forend for 3 Gun Competitions AR-15/M-16 Aluminum 4.5 OAL 3 Gun Free Float Forend Extension with Accessory Attachments