It doesn't qualify as stock due to the funnel, it is like having a magwell on a pistol. It is no longer considered stock. To answer the original question I don't know. I am sure someone will chime in with that answer
Even if the jet funnel is removed, it is still not legal for stock service pistol. You would also need to remove the overtravel screw from the trigger. If you think the rules are retarded, bitching about it won't help sinice it's Bill Wilson's company.
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