Question for the builder

[Dano3467]

Are all 80% ( ar15 ) lower builds multi cal capable, or are some different ?

going to my 1st party and would like to know. Thanks...

[Intimid8tor]

There are very few non multi capable 80% builds. Yellow logic had a 9mm 80% and then there are the LR308 lowers. As long as they are using a standard .223 lower it is multi. Also, know that caliber marking on a lower make no difference. It can be marked with anything and you can still put any caliber on top.

[Dano3467]

Thanks for that...