How Good Is 338 Arc? CMMG Mk4 Dissent 338 Arc First Shots
This video reviews the CMMG MK4 Descent in 338 Arc caliber, focusing on its performance with subsonic ammunition. The reviewer, Chris from Honest Outlaw, details initial reliability issues that were resolved by adjusting the gas block. He compares the 338 Arc to 300 Blackout and discusses its potential as a quiet, powerful option for home defense or as a truck gun, despite its higher cost and limited niche.











