Del-Ton AR-15 A3 Flat-Top Upper Assembly 5.56x45mm NATO 1:9 Twist 16" M4 Contour Barrel Chrome Moly Matte 

he Del-Ton complete upper receiver assembly features a flattop upper receiver with a 16" M4 profile chrome moly barrel. The 5.56x45mm NATO chamber, 1 in 9" twist, and M4 feed ramps ensure reliability with a wide variety of commercial and surplus ammunition. The M4 upper features a carbine length gas system and sight radius. The barrel is threaded ½"-28 with an A2 flash hider. Steel parts are finished with a phosphate coating, the aluminum upper is hard coat anodized. Complete with bolt carrier ground & charging handle, ready to mount to any standard AR-15 lower recevier. 

Technical Information:

• 16" Chrome Moly Barrel, 1:9" Twist
• 5.56x45mm NATO chamber
• M4 Government Profile
• ½"-28 Threaded Muzzle with A2 Flash Hider
• A2 Front Sight Base attached with Taper Pins
• Carrier Key attached with Grade 8 Screws and Staked
• Mil-Spec Bolt Carrier, Phosphate Coated with Chrome-lined interior
• MPI Tested Bolt
• Charging Handle with Standard Latch
• Mfg. Part #: DT1009
• Made in the USA