American Built Arms Company MODX GEN III Xtreme Handguard Black Medium. The Xtreme Hand Guard adds an additional two (2) inches to the factory ready 11.5" hand guard. Like the standard factory hand guard the Xtreme Hand Guard serves as a modular foundation on which tactical accessories can be added according to the operator's needs. Specifications for American Built Arms Company MODX GEN III Xtreme Handguard: Manufacturer: American Built Arms Company Color: Black Gun Type: Rifle Fabric/Material: Aluminum design hard coat anodized to Mil-Spec Type III Package Contents: American Built Arms Company MODX GEN III Xtreme Handguard American Built Arms Company ABAMX3XHG: MODX GEN III Xtreme Handguard Black Medium