Originally Posted by bbassi
It looks like I'm going to be building an upper for myself soon. I'm looking to build a light weight upper for a calling gun so I'll probably go with a 16" light weight barrel. I notice I can get 16" barrels with either carbine or mid-length gas port holes pre-drilled. My question is is there an advantage to one over the other? If so what are they?


The advantage of the carbine length is being able to run your bayonet! Doesn't everybody run a bayonet?

The downside is your bolt will crack probably twice as fast, but you'll have a bayonet to fall back on!