Fortis Manufacturing Switch Handguard Features The Fortis Switch handguard is built from aircraft grade 6061-T6 aluminum with a 7075-T6 aluminum locking handle that operates the rail s patent-pending tool-less locking mechanism. This design lets a shooter quickly remove and swap the rail without needing a wrench or armorer s tool a major advantage for anyone who switches between mission or competition-specific configurations. At 15.75 inches long with a 1.34 inch internal diameter the Switch is sized to fit DPMS High Profile .308 pattern AR-10 rifles. Open venting at the 12 o clock position allows heat generated during sustained firing to escape rather than building up inside the handguard. M-LOK attachment points are positioned at the 3 6 and 9 o clock locations plus an additional off-set position giving shooters flexibility for mounting lights bipods or other accessories exactly where needed. A hard-coat anodized matte black finish provides corrosion resistance and a durable low-glare surface suited to field and competition use. The barrel nut is a 4140 heat-treated unit sized at 1-7/16 by 16 TPI and torques to 20 in-lbs using a spanner wrench which is not included. Made in the USA the Fortis Switch gives AR-10 builders a genuinely lightweight quick-change handguard system for sale at GrabAGun. Fortis Manufacturing Switch Handguard Specifications Manufacturer: Fortis Manufacturing Model: Switch Handguard Type: Handguard Color: Black Finish: Matte Hard-Coat Anodized Material: 6061-T6 Aluminum Length: 15.75 Compatible Hosts: DPMS High Profile .308 AR-10 Internal Diameter: 1.34 Attachment: M-LOK Country Of Origin: USA Available At: GrabAGun