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View Full Version : Changing Calibers on an AR-15


sbjmg
02-20-2008, 1:11 PM
What is required.

I have on order:

RRA CAR A4 Complete Rifle Kit, with Chrome Lined Barrel (5.56)
Lauer Stripped Lower Receiver

I now have a little regret with not going bigger, maybee 6.5, 6.8, 7.62 or even .50.

What do I need to change?

Thanks

aplinker
02-20-2008, 1:16 PM
Barrel, bolt and magazine (potentially). Some of the rounds work in standard AR mags.

The barrel and bolt change could be done as a complete upper. The lower doesn't care what round you use (as long as it's one of the ones that's compatible with the AR-15 magwell -- all the ones you listed are).

C.G.
02-20-2008, 10:22 PM
What is required.

I have on order:

RRA CAR A4 Complete Rifle Kit, with Chrome Lined Barrel (5.56)
Lauer Stripped Lower Receiver

I now have a little regret with not going bigger, maybee 6.5, 6.8, 7.62 or even .50.

What do I need to change?

Thanks

You should not regret your choice. Your first AR should be in 5.56, if not for anything else the ammo is a lot more expensive for the other calibers. Then you can add uppers in 6.5 Grendel, 6.8 SPC, .50 Beowulf, 7.62 x .39 or whatever strikes your fancy at a time when you've saved your pennies for it.

jandmtv
02-20-2008, 10:25 PM
nice post count C.G.! 4,444

C.G.
02-20-2008, 10:32 PM
nice post count C.G.! 4,444Not anymore.:D