[neoinarien]

Hello all,

Thank you in advance. Basic question...

Which caliber conversion kits (243 wssm, 6.8, 7.62x39, etc) will fit, if any, the 'standard' 223 lower receiver safely?

Thanks!

~Tom

 

[limpetmine]

I've

I've seen a .50 BMG upper. The most rational is the 6.8, then the 7.62 x 39, and if you're a DEA guy with a can, the 9MM.

 

[neoinarien]

how could that work with the standard 223 lower?

 

[limpetmine]

check here

http://sgcusa.com/product_info.php?products_id=2899


http://www.bushmaster.com/products.asp?cat=6

50 cal below:

http://www.bohicaarms.com/

 

[neoinarien]

sorry, not to be pesky, but I presume this to be a yes? I read the links and they don't explicitly give an answer (though they seem to imply: yes!).

So all one needs is the "standard" 223 lower, with the "insert caliber here" upper, +mags?

 

[limpetmine]

...

In a word, YES.

Here are a couple of belt fed uppers for you. The BRP is way cool, an MG-42 upper on an M-16 lower. Way cool.
Lower + upper + ammo = fun

http://www.guntech.com/shrike/

http://www.brpguns.com/xmg.htm

 

[Poot]

The 6.8 conversion will DEFINITELY work on a standard lower, it's what I did. You need a 6.8-specific upper/barrel assembly, mags and a bolt. Your existing bolt carrier and charging handle will work fine.

 

[A square 10]

all of the above -