So through some deals, I ended up with a "parts gun" that has all of 2-3 mags through it.

What I plan to keep is a full "mid section" (complete A3 upper, complete lower minus stock).

Now I have 3 other ARs in various states. I have a nice 20" HBAR that I use for long range, the M4 w/ EOTech for PR, and now a bling 10.5" SBR.

I'm looking for something a bit different this time. But something that isn't so rare I can't get hi-cap mags or spare parts for. I also don't want something really expensive.

I could get something in .45acp, .22LR, maybe 6.8SPC (if I could find ammo). Or stick with .223 and get a 20 pound 24" bull barrel. Mid-length, rifle, carbine, etc. etc.

So, I'm soliciting for ideas. What would be different enough from the ones I currently have to be interesting, but not a PITA. Fire away.

I'm starting on an A4gery. That'd be a little different than what you have. Or maybe a 24" Varmint rifle?