Hi guys, new to the scene and looking for my first basic AR-15 but want to get one that's lefty as well as something that could possibly be upgraded in the future if possible. My research has led me here over the STAG option (seems RRA and STAG are the only two lefty manufacturers) and I've found two in particular that I thought were good, but not sure:
https://www.rockriverarms.com/index.cfm?fuseaction=category.display&category_id=572&CFID=598013991&CFTOKEN=65217894
and
https://www.rockriverarms.com/index.cfm?fuseaction=category.display&category_id=575&CFID=598013991&CFTOKEN=65217894
The second being the 16" carbine because I wanted one in 5.56. Kind of overwhelmed by the options available for the upgrades and not sure what they all mean. Should I go with just the standard options on all of it and upgrade later? If there's any more information you'd need from me let me know as I'm very new to this whole process, thanks!