Running an AR-9ish with the ARC Fire! The DD PCC & MP5!
This guide details the process of tuning an AR-9 style platform, specifically a Daniel Defense PCC, for reliable function with the ARC Fire trigger system and subsonic ammunition. It covers essential modifications like dremeling the carrier and selecting appropriate buffer and spring combinations, drawing parallels to MP5 tuning. The information is presented experimentally, highlighting trial-and-error for optimal performance.









