AR-15 Chamber Flag for 5.56 .223 .300

I took the SAAMI specs and designed a chamber flag that will accurately index in the same place regardless if you use .223/5.56 or .300 Blackout. Because it indexes on the datum line of each cartridge it will always stick out the same amount. Modeled a hole for use with keyring flags and a groove for manual retraction.

WARNING: Do not print with standard resins or this will shatter if you send the bolt home! If you want to print using resin, use a tough semi-flexible type like Siraya Tech Blu.

PLA can work but is not advisable for a hot chamber.

Recommend printing this in Nylon or ABS.