reddog90 said:
What are the specs on your 14.5" lightweight build?
Standard PSA lower
Magpul K2 grip
Standard lower parts kit, minus Geissele SSA-E and CMMG ambi safety
Spikes T2 buffer kit
B5 Sopmod stock
Aero Upper w/o Forward Assist
AIM Lightweight BCG
BCM Ambi Gunfighter charging hadlle, Mod 4 size
Faxon 14.5" pencil barrel, midlength gas
13" ALG EMR V2
Voodoo Manimal pinned and welded
Low profile .650 gas block
The Faxon lightweight barrel is the biggest savings weight wise. The Lightweight BCG helps too, as does an upper without forward assist.
But if you want to go semi lightweight without getting nuts, go with a faxon barrel and a lightweight free float rail.
The ALG isn't the absolute lightest option out there, but it is very light, strong, and provides machined QD points for slings and the ability to mount accessories anywhere on the rail I need to mount something, so I'm a big fan of it as a "do it all" option.