AR-15 C7 Stripped Upper Receiver – Black – Onyx Arms
Brownells Adds Three New AR-15 Retro Uppers -The Firearm Blog
Luth-AR Horrible Quality C7 Upper - AR15.COM
M4Carbine.net Forums
A1 Stripped Upper Receiver, C7 Style (w/ Case Deflector)
TNTE Billet C7/C8/M16E1 Upper Receiver with M4 Ramps-Stripped - TNTE Sales Inc.
OfficeFax on X: "My NCR Service Rifle clone: The big breakdown Upper receiver: C7 profile upper receiver, 20" pencil profile barrel, A1 birdcage Furniture: Black Guns Wood, call in to order an