-Like new KAC SR-15 E3 Complete Upper with an upgrade to the URX III Rail.
KAC E3 Complete FA BCG
Standard Charging handle.
KAC 200-600 BUIS.
Surefire MB556K Muzzle Brake.
Less than 300 flawless round fired. It is very nice, one of the best & light upper, ready to put on to your lower.
I will not part this one, only sell it complete as described