Rifle Jonesing

So, I've had a bit of a hankering for a little different rifle than what's currently in the stable.  I'm leaning toward something very lightweight in a light recoiling caliber.  I also want iron sights and the option to mount a compact optic.  I'm leaning toward a manually cycled action that can be cycled quickly which unfortunately rules out my Marlin 30-30 with its long lever throw.

I've had my eye on a CZ 527 carbine in 7.62x39 but the optics mounting and magazine situation on it makes me wary.  The optic rail is an integrated dovetail that requires an adapter for weaver or picatinny options.  And from what I've read, the mag can't be reloaded while in the rifle and spare mags are pricy at $40 each.  Not to mention the 7.62 chambering is scarce for some reason right now.

The new Mossberg MVP Patrol rifle in .300 Blackout that was introduced at SHOT this year is VERY interesting.  Short bolt throw, iron sights, picatinny rail, a 16" barrel, and AR-15 mags.  I've got a couple of reservations with this rifle.  The first is the new caliber.  I was hoping to stick with a caliber I already own.  Plus I'm not certain how available it's likely to be.  This isn't much of a concern as the .300 Blackout has proven extremely popular.  The second is the rifle itself.  I've not been able to find much in the way of reviews of the MVP in any caliber.  I've always sort of had it in the back of my mind that the Mossberg rifles were second string.  No real justification for this, I admit, but I'd feel a whole lot better if I could find reviews that painted a more favorable than unfavorable overview.

And now I'm wondering if anyone's ever converted a Kel-Tec SU16 to .300 Blackout.

Sometimes I do believe I think too much.