Lewis Machine and Tool Flat Top Barreled AR-15 Upper Receiver - 5.56 - 10.5"

This Lewis Machine & Tool M4-style Flat Top Barreled AR-15 Upper Receiver ships complete from the factory with the front sight gas block, delta ring, forward assist, and dust cover already installed, giving you a 10.5" carbine-length foundation ready for a two-piece handguard.

Features:

• 10.5" chrome-lined barrel chambered in 5.56 NATO, 1:7 twist
• Carbine-length gas system
• Phosphate-finished exterior
• Forged aluminum flat-top upper receiver, hardcoat anodized
• Laser-engraved T-marks on the picatinny rail
• A2 front sight gas block and delta ring installed
• Forward assist and dust cover installed
• Compatible with Mil-Spec AR-15 lowers and parts

The laser-engraved T-marks make it simple to return an optic to the exact same position after removing it, and the chrome-lined bore adds corrosion resistance for long-term durability. Because the front sight gas block, delta ring, forward assist, and dust cover all ship pre-installed, there's less assembly work standing between you and a finished upper.

This 10.5" barrel falls under the federal 16" minimum for a standard rifle — without a compliant, permanently attached muzzle device bringing it to legal length, it must be built into an NFA-regulated short-barreled rifle or an AR pistol.

Lewis Machine & Tool has supplied the U.S. military, law enforcement, and government agencies with precision-engineered weapon systems since 1980, and every LMT upper is made in America to that same standard.