lowers
There are a few differences between lowers mfg out there, but you need to know that many of the AR-15 lowers are made by the same shop and then sold to DPMS, Wilson, Bushmaster,ECT. Here is a guide
Lewis Machine & Tool makes
•LMT
•Lauer
•DS Arms
•PWA
•Eagle
•Armalite
•Knights Armament
•Barrett
Continental Machine Tool "CMT" makes
•Stag
•Rock River Arms
•High Standard
•Noveske
•Century (New)
•Global Tactical
•CLE
•S&W
•MGI
•Wilson Tactical
•Grenadier Precision
•Colt
LAR Manufacturing makes
•LAR
•Bushmaster
•Ameetec
•DPMS
•CMMG
•Double Star
•Fulton Armory
•Spike's Tactical
I use CMT lowers, theres nothing wrong with the others but CMT seems to work well for me. I buy "Jard" triggers for them and they are awesome. The CMT lowers seem to match up well with most uppers on the market.:top: