How extensive is the list of compatible parts?

There are 28 compatible parts for the USAS12, including the "PK-06 Reflex Sight."

Can the "Classic Holographic Sight" be mounted?

Yes, the "Classic Holographic Sight" is among the parts compatible with the USAS12.

The rail for the USAS12 is manufactured by "Flemington."

Specialized USAS12 upper rail by Flemington for the upper receiver cover.

No numerical specifications are provided for this part.

Rail for USAS12, compatible with "", "", "", "", and other parts.

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Минусы