450B0592
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Rock River Arms A4 mid-length upper in .450 Bushmaster delivers serious stopping power with a 16″ chrome moly barrel and includes complete bolt carrier group and charging handle assembly.
$751.00Low Stock
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Rock River Arms A4 mid-length upper in .450 Bushmaster delivers serious stopping power with a 16″ chrome moly barrel and includes complete bolt carrier group and charging handle assembly.
