
Diagnose BrassFacts’ 6 ARC Jams
BrassFacts just did an interesting review on PSA’s ICAR receiver set with 6 ARC. He ran 800 rounds total, mostly of the Frontier load (Hornady’s off brand 105gr in FMJ). What’s weird is that he started out having no issues and then gradually had more and more jams until he had to cycle each round by hand. He was running a blue Sprinco and H2 buffer. I saw one commenter state that the problem is his Rexus bolt, which starts out strong and then loses reliability once it gets dirty. Thoughts?
The other big issue to come out of this video (and the video from Hop, which was only published internally for his subscribers) is the compatibility of anti-rotation tab handguards with ICAR receivers. If anyone knows any rails with anti-rotation tabs that work, please respond with that info.