DoubleStar 7.5in .300 Blackout AR Pistol Upper Complete HBAR M4 Feed Ramps 1x8 Twist Black

DoubleStar 7.5in .300 Blackout AR Pistol Upper Complete HBAR M4 Feed Ramps 1x8 Twist Black. 5in .300 Blackout AR Pistol Complete Upper. These AR15 Upper Receivers made by DoubleStar are crafted from 7075 T6 aircraft-grade aluminum to deliver impeccable and repeatable results. This Doublestar 7.5in .300 Blackout HBAR Upper comes equipped with an A2 flash hider that will greatly reduce your shot signature to protect you from your firearm's blinding blasts. The barrel on these uppers is made out of 4140 Chrome Moly and contains and black Nitride finish that preserves its quality and protects it from the elements. With a forward assist dust cover M4 feedramps and so much more - this is the upper receiver that has it all and will vastly improve the quality of your build. Install the Doublestar 7.5in .300 Blackout Upper Complete w/ 1x8 Twist to see the difference top-shelf parts and construction can make to your rifle. Specifications for DoubleStar 7.5in .300 Blackout AR Pistol Upper Complete: Manufacturer: DoubleStar Caliber: .300 AAC Blackout Overall Length: 7.5 in Barrel Length: 7.5 in Barrel Profile: HBAR Finish: Anodized Color: Black Gun Model: M4 Magazine Included: No Model: HBAR Features of Doublestar 7.5in .300 Blackout AR Pistol Upper Complete HBAR M4 Feed Ramps 1x8 Twist Complete Upper M4 Feed Ramps Package Contents: DoubleStar 7.5in .300 Blackout AR Pistol Upper Complete What firearm models does the manufacturer say DoubleStar 7.5in .300 Blackout AR Pistol Upper Complete is compatible with? The manufacturer says that DoubleStar 7.5in .300 Blackout AR Pistol Upper Complete is compatible with M4DoubleStar ARBU240C: 7.5in .300 Blackout AR Pistol Upper Complete HBAR M4 Feed Ramps 1x8 Twist Black