AR-15 5.56 Heavy Barrel Upper Receiver 20 Inch Flat Top Tonys Custom Uppers
AR-15 5.56 20" Standard Upper Receiver Flat Top - Tony's Customs
These 20" C.A.R. Upper Halves feature an extra heavy 4140 Chrome-Moly barrel. Includes the complete barrel assembly, a forged and hard coat anodized A2 upper receiver, ejection port cover, forward assist, M4 feed ramps and a 1 in 9 twist. No FFL required. Easy installation--remove 2 pins, insert upper and replace pins.
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