Umarex Is Your Notos Upgraded or Out the Box?

I have way too many Notos rifles and still it continues to grow, lol. I do keep one completely stock for base line comparison. I do provide feedbacks to companies and encourage them to incorporate some of this mods for safety, ergonomics and performance. I have mutual NDA's with 4 different companies. No I'm not going to get rich out of this, but I also learn and enjoy this hubby immensely.

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I like the pistols.
I would turn one into a pistol if I could do it.
But I definitely do not have the skills to shorten barrels and tubes.