mega "multi" lower question

[btlsoom]

I know that the Mega lower is marked as "multi" as it will take all AR parts.  I have mine set up for a .223 right now for coyotes.  Can it be set up for lets say a .243 or a .308?  It looks like the clip size is limited.

[Jolten]

I believe it can only be converted for calibers in the platform. I believe and could be wrong, but .243 and .308 are only available in the AR10 platform and not a ar15.

[DRobnsn]

 

[luvmystang67]

I know that the Mega lower is marked as "multi" as it will take all AR parts.  I have mine set up for a .223 right now for coyotes.  Can it be set up for lets say a .243 or a .308?  It looks like the clip size is limited.

There's a lot of information on this, but basically you can use whatever will fit inside of your mag well.  For an AR-15 some of the commonish options are:

7.62x39
5.45x39
5.56x45/.223
6.5 Grendel
6.8SPC
300 Blackout
.50 Beowolf
.450 Bushmaster

There are many others, some of them require new bolts, but thats a really minor deal.  Obviously you'd need a new barrel too.  If you wanted multiple calibers you'd usually be best having a dedicated upper for each one and just pin it to your lower and be good to go again.

[h20hunter]

.50 Beowolf

Fun round if you are not the one paying for the ammo. My old man has one set up in this and it sure does a number on bowling pins.