I haven't given the colt style lower any thought yet. I'm looking to get into a pistol mag fed ar9 it seems glock mags have the market. Im changing side arms also, love my 5" 1911 but it's time for a change.
Any one have one for a beretta or xd ? I know it's a long shot. Gonna look into the m&p also
I really enjoyed the Baz45 I build a few years back with a RW Di upper it really was a fun gun just costly to shoot in high volume.