DoubleStar DS-4 AR-15/M4 Flattop Upper Heavy Match Barrel 16 inch 5.56/.223 1-9 Twist A1 Muzzle Device Black

DoubleStar DS-4 AR-15/M4 Flattop Upper Heavy Match Barrel 16 inch 5.56/.223 1-9 Twist A1 Muzzle Device Black. 5.56 Nato 1.9 twist M4 Feed Ramps Forged upper Specifications for DoubleStar DS-4 AR-15/M4 Flattop 16" Upper Receiver: Manufacturer: DoubleStar Caliber: 5.56x45mm NATO .223 Remington Overall Length: 16 in Barrel Length: 16 in Barrel Profile: M4 Barrel Twist Rate: 1-9 Muzzle Device: A1 Finish: Anodized Color: Black Gun Model: M4 AR-15 Fabric/Material: 7075-T6 Aluminum Gun Make: AR Platform Barrel Material: 4140 Chrome Moly Vanadium Magazine Included: No Package Contents: DoubleStar DS-4 AR-15/M4 Flattop 16" Upper Receiver The DoubleStar DS-4 AR-15/M4 Flattop 16" Upper Receiver is a quality addition to the DoubleStar lineup. For more great deals on AR15 Upper Receivers by DoubleStar please browse our Doublestar Gun Parts page. Which weapon models is DoubleStar DS-4 AR-15/M4 Flattop 16" Upper Receiver compatible with? DoubleStar DS-4 AR-15/M4 Flattop 16" Upper Receiver is compatible with AR-15 M4DoubleStar ARBU404: DS-4 AR-15/M4 Flattop Upper Heavy Match Barrel 16 inch 5.56/.223 1-9 Twist A1 Muzzle Device Black