Built AR-15.
Aero M4E1 lower
Aero upper
SI ambi safety
SI takedown pins
SI charging handle with extended latch
Vltor IMOD
BCM swivel mount for sling
Phase 5 Bolt release
Midwest Industries slim quad rail
Midwest Industries brake
Rainier Arms 5.56 barrel
Primary Arms scope with QD mount
Ebay...
I have 2, Article II Firearms Matching Billet Receiver Sets.
Both are BNIB.
One set for 400, both for 700.
FTF in Brownsburg or near by.
Must show Indiana ID and possibly LTCH.