Description

100-038-696WB
M5 Upper Receiver w/ LW 18 Carbine Barrel w/ FSB, BCG
Cartridge: 308 Winchester
Finish: Black
Style: Assembled
Contour: Carbine
Length: 18
Twist: 1-10
Description
Specs
A Modern-Day AR .308 Receiver Paired With a Classic Carbine Barrel
Choosing the right components for a complete AR .308 rifle build is trickier than building an AR-15, as many home builders have found. Since the AR .308 platform isn't as standardized as the AR-15, some components can fit differently or not at all. That's why Brownells made the whole process easier by pairing this upper receiver with the company's lightweight .308 barrels and other must-have components.
The M5 upper receiver is built by Aero Precision and features M4-style feedramps, along with DPMS-pattern takedown holes. The receiver is compatible with standard DPMS-pattern components, including the lower receiver, bolt carrier, charging handles and barrels. This upper comes equipped with a forward assist and ejection-port cover. The system also comes equipped with the same AR .308 front-sight gas block found on the original Armalite rifles built by Artillerie Inrichtingen. This kit also includes the correct bolt-carrier group.
Brownells paired this AR .308 Upper Receiver with one of its Carbine barrels, which can be had in 16-, 18- and 20-inch lengths. The 16-inch barrels are outfitted with mid-length gas systems, while the 18- and 20-inch barrels are fitted with a rifle-length gas system. All carbine barrels feature a 1:10-inch twist rate. They feature a QPQ-nitride finish, along with an exterior phosphate finish that's accurate to retro AR .308 barrels. These barrels also ship with a barrel nut, round handguard cap, front sight base and front-sight hardware.

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