The Firefight 7.5-inch AR-15 5.56 NATO pistol complete upper build kit from Davidson Defense is engineered for reliable performance and precision. Constructed from high-quality materials, this kit features a 7.5-inch barrel made from 4150 CrMoV steel with a phosphate finish, boasting a government profile and a 1:7 twist rate for optimal stability. The upper receiver, crafted from 7075 T6 aluminum, is anodized for enhanced durability and includes M4 feed ramps. Equipped with a premium AR-15 5.56 complete bolt carrier group made from 9310 alloy steel with a nitride finish, the kit ensures smooth operation. The M-Lok handguard, made from lightweight 6061-T6 aluminum in black, offers versatility for accessories. A low-profile gas block and a Bushmaster Izzy flash hider complete the assembly, making this upper build kit a reliable choice for gunsmiths who value precision in their firearms.
Caliber: 5.56x45mm NATO
Barrel Material: 4150 CrMoV
Barrel Thread Pitch: 1/2x28
Barrel Length: 7.5-inch
Barrel Finish: Phosphate
Barrel Profile: Government
Barrel Twist Rate: 1:7
Upper Receiver Material: 7075 T6 Aluminum
Upper Receiver Finish: Anodized
Handguard Material: 6061-T6 Aluminum
Handguard Color: Black
Handguard Style: M-Lok
Charging Handle: AR-15 M4 Charging Handle Mil-Spec Quality
Bolt Carrier Material: 9310 Alloy Steel
Bolt Carrier Finish: Nitride
Bolt Carrier Name: Premium AR-15 5.56 Complete Bolt Carrier Group
Gas Block Size: 0.75
Gas Block Name: Recoil Technologies Micro Low-Profile Gas Block for .750 O.D Barrel Steel
Muzzle Device: Phase 5 Weapon Systems Inc Bushmaster Izzy Flash Hider
Muzzle Thread Pitch: 1/2x28
Upper Receiver Name: Stripped Upper Receiver with M4 Feed ramps - 7075 T6 Aluminum, Anodized
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