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Fully Built Magpull Polarstar Jack HPA M4
$845.00
$895.00
Reliable fast shipping
This is a fully built Magpull Viking Polarstar Jack HPA M4
Full metal body and fully built internals
Polarstar Jack
Retro arms Hopup
Flat hop
Madbull blue bucking
Madbull 6.03 240mm inner barrel
Black speed trigger