I'm thinking about what to get for a new rifle. I want something in a semi-auto "assault rifle", to carry in the truck with me daily. I have been debating the pros & cons of various platforms and calibers.

When I look at AR's, I wonder about the availability of parts and ammo for non-standard calibers (6.5mm, 6.8mm, 7.62x39mm, etc). I don't think I need a .308 M4 carbine, but a 5.56mm seems *just a little* underpowered.

Who has 468 Socom? Other rifles? I'd like some firsthand reports.

In an AR, I'd like it with a 16" barrel (registered SBR is OK too), A3 flattop receiver, and collapsible stock.

First, they are not assault rifles...that's leftist propaganda. Try "Semi-auto carbine" If you want your rifle in case of a "civil uprising" .308 is the best choice. I have several in .223 and they are great for up to 200 yds. but there's nothing like a 500 yard hit to give you goose bumps! Stick with a NATO round for availability and economy.

Hello if you are looking for something inbetween a 223 and a 308,check out Armalite.com

I was scanning the threads, and thought I read, "Air Rifles with Other Calibers."

:laughing:

.177 and .22 . Any others? :D

AR-10 is a .308 version.
http://www.armalite.com/sales/catalog/adobeCatalog/ArmaLiteCatalog10.pdf

I like the .223 and .308 calibers both.But with a 30rd clip you should not haft to worry much.Here is a link to a cool gun that uses the m-16 clips and can also be shot while folded up...:D ..that sounds like a plus for you.
http://www.kel-tec.com/su16c.html

Or you could go this route and get a concealed weapon license.
http://www.kel-tec.com/plr16.html $640
http://www.kel-tec.com/images/big/plr16_01.jpg

Or this from Bushmaster around $900
http://www.bushmaster.com/shopping/Carbon15/az-c15p21s.asp
http://www.bushmaster.com/shopping/Carbon15/Images/AZ-C15P21S.jpg