School me on multical lower

[Kdenton2448]

So if i have a multical lower does that mean i can put any caliber upper on it and still use the same lpc or do things have to be changed out in order for different cal uppers to work
Thanks, kyle

 

[RIDDLE]

No changing of LPK's needed.

 

[SpeedyR]

the only thing different for a few LPK/uppers is the 9mm uppers sometimes need to have either a different bolt or a different hammer depending upon setup.

other than that, the joy of owning the AR is that 95% of the time you can just slap on a different upper and be ready to rock and roll...