Guys, I have read the excellent thread that agent tikki put together and want to begin my AR15 build as fund$ allow. So with that, I have a couple of questions: What is the deal with some stripped lowers having complete trigger guards and others do not? I assume that the ones without just cost less due to mfg? Is that an area of the lower thats prone to break with heavy use and as a result the mfgrs choose to leave it open? Just wondering. Second, I am actively looking for a multi-cal lower to purchase ASAP. What are the top 3 or 4 lowers available that are reasonable in price? For example, is the PSA lower for $99 a good deal, or is it a good deal for a "average" lower? I am kicking myself for not getting a couple blemished PSA lowers when they were like $50.... The LGS I called today has a couple of lowers for .308 (mfg CMMG) but they were around $250 and up in price... Thanks guys!