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RGuns AR-15 Complete Upper Receiver .223/5.56 NATO 16" 1:9" Twist M4 Profile Barrel Flat Top Carbine Length Standard Handguards A2 Front Sight W/ BCG and Chargine Handle Black 7-M4CU

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Specifications and Features:
Caliber: 5.56 NATO
16" Chrome Moly M4 Profile Barrel
M4 Feed Ramps
National Match Grade 1:9" Rifling
7075T6 Aluminum Receiver with Picatinny Flat Top
A2 Birdcage Flash Hider
Mil-Spec Type III Hard Coat Anodized Black
Plastic M4 Handguards
Complete with Charging Handle and Bolt Carrier Group 
Total number of Reviews: 1

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5.0 5
"Bought this upper and it arrived the next day. Great Job on the shipping to CTD. Took it to the range and ran 10 rounds through it as fast as I could pull the trigger and it fired and feed the rounds flawlessly. I have not tested the upper for accuracy yet but that will happen as soon as I can get a scope on it. Great Upper so far for the price. Again, Great Job CTD..."