dont know about #1 and #4. i have the 209 ultramag and its a good gun. my in-law and his cous. have the omega and to tell you the truth the omega is so simple of a design, you wouldnt beleive it.the only thing i dont like about the omega is when you take out or put back the ramrod it sounds like you're scrubbing 2 peices of metal together and its loud

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