WTT: JP enterprises barrel w/ Mega upper receiver

[chrixxer408]

WTT JP enterprises barrel w/ Mega upper receiver. Only shot under 300 rounds

Barrel Specs:
Chamber: .223
Length: 24" Supermatch
Gas system: Rifle-length
Twist: 1:8 button rifled
JP Modular Hand Guard
JP Black Thermal Dissipator
JP Adjustable Gas System
JP Compensators
Mega Upper receiver

Willing to trade for a 1911 or something with an equal value.