This started out as a 'budget' build. It didn't shoot like I wanted it to so I gradually sold off the budget parts and replaced them with what I should have bought in the first place.
The handguard is the last part that needs to go. Considering the Seekins with the flat bottom or an AP customs carbon fiber.
Magpul PRS (I would prefer a slightly shorter stock but the weight of the PRS balances the rifle out nicely)
JP Silent Captured Spring
JP LMOS Carrier
JP Adj gas block
Geissele SSA trigger
BAD lever (I was dubious about these at first but now I wouldn't want an AR without one.)
DPMS lower
BCM blem upper
CMT MPI bolt
hogue handguard
DPMS MK12 barrel 18in rifle gas 1-8 twist (I was dubious about this barrel at first but it shoots very well)
Nordic Corvette Comp (I was actually getting a little bit too much downforce from this and my muzzle was dipping slightly. Tapped the top jet port, threaded in a machine bolt and slowly drilled out the center of it until the rifle stopped moving.)
Last match still using the TA33 ACOG.
http://youtu.be/NVOFZNaHPfI
Upgraded to the Vortex Razor 1-6. Haven't shot a match with it yet, but it is leaps and bounds ahead of the ACOG for the 3-gun game.
ADM Recon Mount, 3in cantilever. MGM throwlever.
When I get some decent range time in I would like to review the Vortex. It's the nicest rifle scope I have ever owned.