91822 : AR-15 A3 Patrolman's Carbine Upper Receiver Assembly 5.56mm Nato 16" M4 BBL

It’s similar to our M4-type carbines, but with additional barrel length (16”). 30-round magazine included.

• Built on the versatile Bushmaster modular AR upper platform
• Barreled upper receivers can be used on existing AR15-type lower receivers
• Bushmaster 4150 chrome-moly-vanadium steel barrels feature hard-chrome lining in
• both bore and chamber for extended barrel life
• All receivers feature integral brass defectors and hard anodized fnish
• Each assembly is factory headspaced, proofed, test-fred and ready to use
• Forged, lightweight 7075T6 aircraft-quality aluminum receivers incorporate all M16A2 design improvements including cartridge case defector, bolt catch assembly and raised ribs for protection against accidental magazine release