Aero Precision | AR-15 Complete Upper | 5.56 | 20″

This Aero Precision complete AR-15 upper pairs a 20-inch barrel and 1:7 twist with classic A2 styling. It features an A2 detachable carry handle, pinned A2 front sight block with bayonet lug, an A2-style handguard, and a standard A2 flash hider. The barrel is described in the source as 4150 chrome moly vanadium with a QPQ corrosion-resistant finish.

Product Specifications

• The manufacturer is Aero Precision.
• The model is listed as the AR-15 Complete Upper.
• The caliber is .223 Rem / 5.56 NATO.
• The barrel measures 20 inches.
• The rifling twist is 1:7.
• The barrel material is 4150 chrome moly vanadium with a QPQ corrosion-resistant finish.
• The barrel finish is described as matte black with QPQ.
• The handguard is A2 style and pinned to the front sight base.
• The sights include a detachable A2 carry handle and an A2 front sight block with bayonet lug.
• The muzzle device is a standard A2 flash hider.
• The gas system information contains conflicting source data (rifle-length and carbine-length both reported).
• The upper is a standard M4 upper receiver.
• This complete upper does not include a bolt carrier group or charging handle.
• The listed weight is 5.9.
• The UPC is 815421022285.

This complete upper blends traditional A2 ergonomics and sighting with modern materials and corrosion-resistant finishing. It is well suited for range training and service-style or M16A4-inspired builds where iron sights and a 20″ 1:7 barrel are desired. The unit is intended to be paired with a compatible AR-15 lower to complete a functioning rifle assembly.