Here at Scorpius Tactical we have a consignment AR15 chambered in 300 blackout for sale for $1950.00. This pistol has less than 100 rounds through it, and has the following parts installed on it: Ballistic advantage 9.5" 300 blackout barrel
Silencerco ASR flash hider
Strike industries adjustable gas block
Geissele mk8 black rail
Aero Precision M4E1 upper and lower
Aero BCG
Rise armament single stage trigger
Side charger DDC
Sb tactical pdw pistol brace 
Phase 5 Bad lever
Sig Sauer Romeo MSR