Hermes vangaurd 3400 engraver

This is a programable engraver controlled by a pc. Does anyone here have any exp. with this unit? Specificaly I wonder if it would be suitable for engraving rifle barrels, How difficult are they to program and operate. The unit I have has an indexing head of sorts and an outbourd support that would need to be extended to fit a barrel. TIA
 
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