Growler215
Ultimate Member
But not really a billet lower, it just looks like one. Machined from 7075-T6 forging.Another vote for M4E1. The M4E1 has a pretty good mag well bevel, too.
Still have to deal with the forward takedown spring/detent trying to fly away. I've got the right size clevis pin, which helps but isn't fool proof, so I just make sure there's a pillow or something to keep the spring/detent recoverable.