Here is a .300/221 Fireball (Whisper) built with BRO Upper/Lower from the group buy:
Upper
16" threaded SS bbl and three position gas block from tp555
Black Rain Ordnance billet Cerakote'd upper/ejection port cover and charging handle
YHM rifle length light rail free floating hand guard
YMH rail end cap
YHM ladder covers
FA BCG
Scope
3-9x40 Pentax with Ballistic Plex reticle
Lower
Black Rain Ordnance CeraKote'd billet
RRA LPK with 3# trigger by Bill Springfield
Gen 2 Mod 2 anti rotation pins
Hogue grip
Brownell's ambi sling receiver endplate
Mil-spec receiver extension
LMT SOPMOD stock

And a 6.8 SPC:
Upper:
RRA Upper
WOA 18" threaded SS bbl DuraCoated grey w YHM Phantom FH/Brake
SAAMI chamber to be upgraded to SPC II
YHM rifle length light rail free floating hand guard
YMH rail end cap
Shrouded BCG
Lower
Stag forged lower
RRA LPK with 2 stage NM trigger
Brownell's ambi sling receiver endplate
Mil-spec receiver extension
MagPul ACS stock

Mike