I am picking up the LMT Piston Ar and wanted to see if any of you guys have it and what your thoughts are . Another question i have is I know the LMT Full Auto BCG is a little bit more weight on it over the Semi Auto version . I plan on using a Vltor A5 Buffer system on this rifle do you think it would be any more of an upgrade to get a Full Auto BCG as well.
LMT's are more than fine. They just aren't the flavor of the month. There are many threads in the Archives discussing them. A full shroud AR Bolt Carrier ~ 7/10 of an ounce lighter than an M16 Bolt Carrier. If the price difference is negligible, go with the M16 Bolt Carrier.
I have one it boring reliable and use it often. I would shoot it first before any upgrades too see if you really need it. I was going to do a bunch of upgrades to mine but, it shot so well I kept it as it was. Now that extra money saved goes to ammo.
I had one... It was amazingly reliable, excellent fit and finish and very accurate. I only sold it because I didn't really like the way it felt in my hands as compared to a PWS. That's just a personal preference, however.
If you're good at something, never do it for free.