This M4 barreled upper receiver assembly is compliant with regulations for the States of CT, MA, NJ and NY as the barrel includes a permanently affixed A2 birdcage style compensator and the bayonet lug has been removed. It is ready for the addition of your own rear sight or optic. This highly accurate 16” M4 profile barrel is chrome lined and machined from 4150 chrome moly vanadium 11595E steel with M4 feed ramps, and is rifled 1 x 9” right hand twist for optimum accuracy with a wide range of .223 Remington / 5.56mm NATO ammunition. Standard A2 Front Sights are fitted.
The machined aluminum flat top upper receiver is complete with :
- Bolt Carrier Assembly
- Charging Handle
- Forward Assist
- Ejection Port Cove
MPC-LH 16" M4 Compliant
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