UTG Pro AR-15 Mid Length Drop-in Quad Rail Picatinny 8.7in Handguard Black. The UTG Pro mount is designed with innovative alignment tabs at the front for a perfect fit with the standard triangular front cap while providing great zero-retention capability for all accessories installed on the rails such as AR Handguards & Forends or laser sights. UTG Pro also offers the UTG Pro Model 4/15 Middle Rifle Length Quad Rail Mount System with easy installation and with no modification to the rifle barrel. Specifications for UTG Pro AR15 Mid Length Drop-in Quad Rail: Manufacturer: UTG Pro Color: Black Finish: Anodized Fabric/Material: Aluminum Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Handguard Length: 8.7 in Handguard Type: Drop-In Handguard Style: Quad Rail Gun Rail: Picatinny Gas System Length: Mid Length Weight: 15.2 oz Included Accessories: Standard Height: 2.4 in Hand: Ambidextrous Width: 2.4 in Quantity: 1 Caliber: .223 Remington 5.56x45mm NATO Country of Origin: USA Features of UTG Pro MTU007 UTG Pro Model 4-15 Mid Length Qaud Rail Clever Top/Bottom Two-piece Design with Integral Spinal Cords/Alignment Housing for Great Fit Designed with Innovative Alignment Tabs at the Front for Perfect Fit with the Standard Triangular Front Cap Fits Middle Length Model 4/15 Includes Four Picatinny Rails Each with 27 Continuous Slots Great Zero-retention Capability for All Accessories Installed on the Rails Easy Installation with No Modification to the Barrel Proudly with Superb Design and Production Package Contents: UTG Pro AR15 Mid Length Drop-in Quad Rail Black Rubber Rail Guards UTG Pro MTU007: AR-15 Mid Length Drop-in Quad Rail Picatinny 8.7in Handguard Black