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MG 34 semi-auto
Receiver Tutorial 4
    The top photo shows a semi auto receiver, the area under the grip
needs to be filled in as shown. The slot holes and recesses need to be
filled as well. The bottom photo is the FA receiver before welding in the
channel.
    It is important to keep this area flat and smooth when done as the
trigger rollers will ride on this area.
    The next 2 photos show the interior sear channel that will need to be
filled in as well. We will weld in a filler and fit the bolt before welding this
section up to the rest of the parts.