I needed a chamber flag for my AR-10 but I couldn't find one that I liked so I remixed a .308 round model and my favorite AR-15 chamber flag and you get what we have here.

Printed in Sunlu PLA Plus with 50% infill and 4 walls.

Note: I don't send the bolt home using the release I gently bring the bolt forward using the charging handle. If you want to full send the bolt I would recommend using a stronger filament like Nylon or ABS.