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- saleM4E1 Enhanced 16" 5.56 Mid-Length Complete Upper Receiver$420.99 - $499.99 Regular Price $464.99 - $499.99
- saleM4E1 Enhanced 16" 5.56 M4 CMV Carbine Barrel Complete Upper Receiver$438.99 - $499.99 Regular Price $464.99 - $499.99