K im trying to build my own AR 15, should I get a lightweight

>>34901257
What kind of shooting do you plan to do? Are you going to be carrying it long distances or will it be more of a bench gun? Different barrels are good for different things. Pencil barrels (as I recall) are designed to be light weight, easy to carry, relatively accurate cold-though they lose some of that as they heat up, and quick to cool down and with minimal deformation. Bull barrels, on the other hand, are fucking heavy if you have to hump them around, often tend to perform better after a couple of rounds and can handle extended use with a negligible loss of accuracy (more thermal mass). There are also all kinds of designs on between, from finned, fluted, twisted, and who knows what the fuck else. Decide what you want your rifle to be and then worry about the barrel.

>>34901257
just get a regular gov profile barrel you idort

or get a Ballistic Advantage hansen profile barrel if you're not retarded

>>34903377
Can confirm, Hanson is way to go.