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Details of Jacob Grey Firearms .300 Blackout 13in Complete Upper Assembly AR-15 Black
Jacob Grey Firearms .300 Blackout 13in Complete Upper Assembly AR-15 Black. If youre not already a fan of this cartridge take it to the range and you will be. You can have an AR that not only performs in CQC but is an effective long-range weapon as well. To get the most out of this versatile cartridge you need a barrel thats up to the task. The Jacob Grey 300 Blackout upper is just what youre looking for. Advantages: You wont get any unneeded features with the Jacob Grey 300 blackout barrel. You get a cold hammer-forged barrel with a reliable pistol gas system. This combination means you get what you expect the best. To make function meet reliability the Jacob Grey barrel is designed with a little more wall so that heat is more easily dissipated and barrel whip is kept to a minimum. We went with 4150 Chrome Moly Vanadium blanks for this 300-blackout barrel. Not only is this design easy to clean but its corrosion resistant as well. Jacob Grey stays true to the industry standard when it comes to the gas-block seat and muzzle threads. Our fully assembled upper comes with a 7 hand guard and a JG 3-Stage Muzzle Brake to help with the muzzle flash from the 30 caliber round that is the 300 Blackout. NOTE: While the 300 Blackout round is one of the most popular as of late the ammunition used greatly affects the performance of your Jacob Grey 300 Blackout upper receiver. While we test our upper receivers using 145gr subsonic ammunition this may not necessarily be the round you prefer to choose. Buffer weight and spring coil tension greatly affects your firearms performance and the user may need to adjust buffer weight accordingly to suit your choice of round. H2 and H3 Buffers are commonly used with the 300 Blackout. If unsure about your firearms performance seek help from a qualified gunsmith. DISCLAIMER: Firearm specifications are subject to change at any time based on availability and supply chain shortage. Specifications for Jacob Grey Firearms .300 Blackout Complete Upper Assembly: Manufacturer: Jacob Grey Firearms Cartridge: .300 AAC Blackout Barrel Profile: M4 Medium Taper Gas System Length: Pistol Length Barrel Twist Rate: 1-7 Threads per Inch: 5/8x24 Handguard Type: Free-Float Muzzle Device: Brake Finish: QPQ Nitride Color: Black Fabric/Material: CMV Alloy Gas Block Journal Size-Diameter: .075 in Handguard Style: Round Rail Attachment/Mount Type: M-LOK Gun Rail: M-LOK Gun Type: Rifle Gun Make: AR Platform Gun Model: AR-15 Barrel Material: Chrome Moly Bolt Carrier Group Included: MIL-SPEC Charging Handle Included: MIL-SPEC Package Contents: Jacob Grey Firearms .300 Blackout Complete Upper Assembly Jacob Grey Firearms 300BO13CUA: .300 Blackout 13in Complete Upper Assembly AR-15 Black Jacob Grey Firearms 300BO16CUA: .300 Blackout 16in Complete Upper Assembly AR-15 Black Jacob Grey Firearms 300BO6CUA: .300 Blackout 6in Complete Upper Assembly AR-15 Black Jacob Grey Firearms 300BO8CUA: .300 Blackout 8in Complete Upper Assembly AR-15 Black Jacob Grey Firearms 300BO9CUA: .300 Blackout 9in Complete Upper Assembly AR-15 Black Jacob Grey Firearms 300BO10CUA: .300 Blackout 10in Complete Upper Assembly AR-15 Black Jacob Grey Firearms 300BO13CUA: .300 Blackout 13in Complete Upper Assembly AR-15 Black Jacob Grey Firearms 300BO13CUA: .300 Blackout 13in Complete Upper Assembly AR-15 Black