I've done quite a bit of googling and now I'm wondering what you guys have.

 

I'm building a new upper for my .308 and I'm in between an 18" barrel and a 20". 

 

Can you guys post up your ARs (preferably 308s) with 18" and 20" barrels.

I have the option between a 12, 15, and 16.5" handguards. I'm looking to see what a 12" looks like on the 18" mostly but post what you've got and note what length everything is.

Gunstruction. It's an app. Try it out

 

this signature exceeds the 15 character capacity count

Gunstruction. It's an app. Try it out

 

this signature exceeds the 15 character capacity count

 

Already have but can't really get a good feel for it. It looks like i'm leaning more toward the 18" but i'd like to see some