I see big price difference is but I would like to know if they are almost back how different can they be and if so which one is the best thank you.
Probably has a better-polished/etc FCG, like ALG's QMS vs ACT--the QMS is a basic milspec while the ACT is more polished and hand-fitted. Usually "enhanced" means anything better than the standard A2 grip and single-paddle safety.I did my first build with an Aero Precision Enchanced LPK. What was enhanced on it? I'm not exactly sure aside from it coming with an MOE pistol grip that the standard kit didn't have. I'm pretty sure it makes bullets fly faster, straighter, and switch to a larger caliber once exiting the barrel. My 5.56 turn into 458 SOCOM before reaching their intended target.
In all seriousness...the trigger feels real good compared to my M&P Sport 2. Feels like less force to engage the trigger. Things start getting really pricey when you start looking at the drop in trigger kits.
I put an Aero Precision LPK in my Aero Precision lower, and it sucked, nothing fit right. I ended up having to get a Colt bolt paddle and roll pin and a few other bits and pieces. My 2nd lower I build using a Geissele LPK and everything went together like soul mates, in other words perfectly and hassle free. There is some truth to you get what you pay for.