Thoughts/guidance/opinions on AR pistol

[mcantar18c]

I disagree with mtnrider. You can't lay down a blanket term like "Ar pistols suck" any more than you can say "AR platform rifles suck" and have anybody take you seriously. There's just too many variables.
A 7.5" barrel chambered in 5.56, yeah that might suck. But I love mine... 12.5" barrel with a 13" KMR, it's short enough to be easily maneuverable and it's light as hell. The SB15 paired with an Odin Works pistol buffer tube is an excellent combination and allows you to adjust the position of the SB15 (just not on the fly). And it fits perfectly with the M500 in the secret compartment in my truck

[thvigil11]

I disagree with mtnrider. You can't lay down a blanket term like "Ar pistols suck" any more than you can say "AR platform rifles suck" and have anybody take you seriously. There's just too many variables.
A 7.5" barrel chambered in 5.56, yeah that might suck. But I love mine... 12.5" barrel with a 13" KMR, it's short enough to be easily maneuverable and it's light as hell. The SB15 paired with an Odin Works pistol buffer tube is an excellent combination and allows you to adjust the position of the SB15 (just not on the fly). And it fits perfectly with the M500 in the secret compartment in my truck

Agreed.

The OP did state he wanted to use it as a truck gun. To me it might be a little bit smarter to use a pistol as a truck gun as opposed to a registered SBR. I can think of several issues (crossing state lines, vehicle stolen, vehicle break in, or even a major accident) where having an NFA item in the car could cause additional headaches.

To the OP, keep the Colt and build/ purchase an AR pistol. Cheap enough to do in this current gun market. Some good deals on the trading post, online (PSA and such) or even in the local stores.