The concept behind the telescoping stock system is simple: the
shotgun stock is replaced by an adapter, to which standard AR-15
grips and buttstocks, including telescoping stocks, can be reliably
attached. The Mesa Tactical stock adapters are investment cast
aircraft aluminum, which are then CNC
machined before being anodized with a Type III
Class 2 mil-spec finish. Where as most of the other brands are
mostly plastic.
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