Description
UPPER RECEIVER DETAILS:
MIL-Spec inner dimension measures at 1.000 -0.0/+0.002″
Thermal Fit inner dimension measures at .997 -0.0/+0.001″ and requires the application of heat in order to provide a solid mate to the recommended barrel extension. By heat we mean more than granny’s hair dryer.
-For Use with M4 Barrel extensions
-Assembled Upper Receivers come with ejection port cover and forward assist installed
LOWER RECEIVER DETAILS:
Receivers Machined from Aluminum Forgings 7075-T6
MIL-Spec
M16/Auto Pocket
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