New to the AR-15

[tlowery04]

Will a S&W upper fit on a PSA lower? I was told that the AR-15 platform was fairly universal but wanted to know before i purchased, I have never owned a ar-15 before only revolvers, shotguns, and bolt action rifles.

[MPDC]

It will fit.

[tlowery04]

thanks, i found a psa lower for 250 and a calvary arms lower for 100? do you know anything about either? i found the psa first but for a buck fifty less i may go with the calv

[rojodiablo]

The PSA stuff has a pretty solid reputation forming. The difference in price tells me 2 things; check to see what parts are included in each, and also- what is the lowers made of? $250 for a complete lower is a good deal. This is still a decent price depending on what is not included; ie a couple tiny parts. But I'd expect the buttstock, buffer, trigger assy for that price. I might accept the mag catch being not included, or the mag release. Then, conversely- $100 sounds like a stripped lower, which means minimum $150 in parts to be added.

If the word 'polymer' is tied to that $100 lower, pass on it and get anything else.

[JaPes]

FWIW...

I assembled a lower based off a $65 Delaware Machinery stripped lower receiver.

It mated to my 15-Sport upper just fine.

[Gunslinger808]

Cav Arms are good to go, they recently quit the firearms manufacturing side but always made a great product.
Good people as well.