Can a stock lower (5.56) be used with a Oly .45 cal upper? Do I need to change the hammer or other parts?
Heres what I would like to do, I would like to build my first rifle and use the lower to interchang with other uppers. I want to start with a .45 and later buy a .22 (I'm using a Cierner in a Colt now).
The parts I'm looking at are:
Stag lower W/LPK
Ace stock, entry w/1" pad
G27 grip
Would this lower setup work with other configurations or are pistol cal.LPK's differant than 5.56(or .308 for all that)
wadayathink?