Description

This complete upper features a smooth-side receiver without forward-assist, true to the original design by Eugene Stoner, combined with a 10.5 inch, 1:7 twist, government profile QPQ-lined barrel, and 10 inch octagonal free-float M-LOK handguard.

Includes

Smooth-side upper receiver
• M4 feed ramps
• 0.250 takedown holes
• laser engraved t-marks
• installed port door with caliber marking

10.5″ 4150 Chrome-Molybendium-Vanadium barrel
• 1:7 twist
• government profile
• 4150 CMV Steel
• carbine length gas system
• 0.750″ low-profile gas block
• M4 barrel extension
• QPQ Nitride finish
• 1/2×28 muzzle threading
• A2 Flash Hider (unpinned)
• weight: 1.19 lbs

10″ Octagonal free-float M-LOK handguard
• 6061-T6 Aluminum
• Black Hardcoat Anodized
• 1.35″ inner diameter
• full-length picatinny rail
• anti-rotation tabs
• 7-sided MLOK, for superior flexible mounting options

Note: This complete upper does not include a BCG or Charging Handle. These products may be selected as add-ons below.

To finish your build