Description
New frontier c4 upper receiver ar15 side charging billet blk
FEATURES:
-Machined from 6061 billet aluminum
-Matte black
-Adjustable tension slide lock on charging handle
-Rear dust cover trap door that seals shut when mated w/ lower
Other Features: Billet aluminum upper receiver use for multiple calibers accepts most standard ar15 aftermarket parts.Designed to match lines with new frontier c4 billet lower
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