DoubleStar

Caliber: 5.56x45mm NATO - Barrel Length: 20 - Barrel Type: Bull Barrel - Twist Rate: No - Barrel Material: 416 Stainless Steel - Barrel Features: Free Floating - Sight / Gas Block: Picatinny Rail Gas Block - Handguard: NATIONAL MATCH FREE FLOAT STANDARD HANDGUARD - Upper Receiver Type: Flattop - Upper Receiver Material: Forged Aircraft 7075 T6 Aluminum - Upper Receiver Coating: Anodized to Mil-Spec - Upper Receiver Features: M4 Feedramps T-Marks Forward Assist Dust Cover