Was just introduced to the empty chamber barrel flag. Any one ever use these? Opinions on them? : r/ar15

Empty Chamber Flag for Pistols and Rifles – hammy3dprints

All Chamber Flags – Plug'r USA

Empty Chamber Ejectable Safety Flag Load Indicator Brass Bottom

MT Chamber Flags — Firearms Insider

LRSU Chamber Flag

My new AR-15: Part 1

Chamber Flag .223 / 5.56 by BurgessG

Heritage Rough Rider Barkeep .22 LR, 2 Barrel, US Flag Grips

AR15 Orange chamber safety flag - Colt takeoff

What is the difference between a breech and a chamber in a firearm