Davidson Defense "Speed Run"
AR-15 Pistol Upper Receiver
14.5" 5.56 NATO 4150 CMV 1-7T Barrel
Premium Carbine Length Drop-In Handguard
(Assembled or Unassembled)
Built On An Upper Receiver Forged From 7075-T6 Aluminum. This Stripped Upper Is Precision Machined To Mil-spec M16/M4 Specifications And Features M4 Feedramps.
This Is A 14.5" 5.56 NATO AR Barrel Designed To Military Specifications. Made From 4150 CMV With A Manganese Phosphate Finish, This Barrel Has A 1/2x28 Thread Pitch And A 1-7 Twist Rate. This Barrel Has Been High Pressure Tested With M197 Cartridge Test Fired, And Was Also Magnetic Particle Tested. This Barrel Includes The Military Cage Code, And The Military Specified Packaging. Includes The Protective VCI Tube Inserted Through Every Barrel Bore, And Sealed In A Protective VCI Bag. These Barrels Are Part Of A Production Run For The US Military That Were Not Delivered. This Barrel Machined From CroMoV Steel, Features Heavy Barrel Contour, Has A Black Phosphate Finish And Includes A Chromium Plated Chamber And Bore (Chrome Lined).
This Build Includes A Ncstar's 3rd Generation MAR4S, .223/5.56 Carbine Length Quad Rail Handguard. The 3rd Gen MAR4S Is Now Lighter And Has A Slimmer Profile Than Earlier Models. This Handguard Allows You To Comfortably Grip Your Rifle In A Variety Of Shooting Positions And Securely Mount A Variety Of Accessories.
This Build Includes A Strike Industries Miller Comp Muzzle Device. Designed To Be Slimmer, When This Muzzle Is Installed It Matches The Profile Of The Host Barrel Allowing Shooters To Pull The Gas Block Off Without The Need To Remove The Muzzle Device.
Barrel: 14.5" 5.56 NATO 4150 CMV Barrel Designed To Military Specifications
Twist Rate: 1-7T
Thread Pitch: 1/2X28
Gas System Length: Carbine
Upper: AR-15 Mil-Spec Upper Receiver
Handguard: Ncstar's 3rd Generation MAR4S
Gas Tube: Stainless Steel Carbine Length Gas Tube
Muzzle Device: Strike Industries Miller Comp Muzzle Device
Forward Assist: Omega Mfg. Forward Assist Assembly
Ejection Port Door: Omega Mfg. AR-15 Ejection Port Door, Rod And Spring
Upper Weight: 3lbs 8oz
Please note: If the listing says "In-Stock" it means we have all of the items in stock. Our assembled upper receivers are made to order, please check this LINK to view our most up to date shipping status.