Colt M16A4 20 inch Barreled Upper Receiver Assembly

The Colt AR15A4/M16A4 Barreled Upper Assembly is used on current issue M16A4 model rifles as well as civilian AR15A4 model rifles. This upper receiver allows for a free-floated barrel and also features a gas-block mounted fixed front sight post with bayonet lug and flat picatinny top. The barrel is Colt's standard 20" chrome lined M16 barrel with an A2 flash hider up front. No BCG included.

Package Contents

• Colt M16A4 Barreled Upper Assembly
• Fixed Post Front Sight

Specifications

• 20 Inch 1/7 twist Mil-Spec chrome lined MP tested barrel
• Unique direct gas operating system eliminates the conventional operating rod and results in fewer and lighter components
• Accommodates the full range of 5.56mm ammunition, including the NATO M855/SS109 and U.S. M193, utilizing a rifling twist of 1 turn in 7"
• Straight-line construction disperses recoil straight back to the shoulder, increasing handling capabilities, especially during repeated fire
• Cartridge case deflector allows easy operation in both right and left handed shooting positions for increased tactical applications
• Muzzle compensator further reduces muzzle climb and helps eliminate flash and dust signatures
• Ejection port cover protects the chamber from dust and mud
• Field strips easily without special tools for simple field user maintenance
• Flat top receiver allows for removable carrying handle and easy mounting of accessories
• High strength materials for greater comfort and effectiveness
• Caliber - 5.56mm
• Gas Direct system, Locking bolt
• Front Sight - Adjustable front
• Flash Hider