S&W upper

[Big plat]

I have a Smith & Wesson AR308 win 1/10 5R complete upper with bolt carrier group and charge handle. I am trying to find a lower that is comparable with my upper having trouble? Or does that S&W upper only fit on a S&W lower??? Thank you for your help 

[edgecrusher]

Last I knew it’s proprietary. What are your issues? Be detailed. Factory gun? Buffer and spring size and weight? Gas port measurement? Where’s the gas tube end up in the cam cut out?

[Big plat]

As far as I can tell this is a older factory upper…I am looking for a lower that this upper will work on..is there any aftermarket S&W lowers?

16” 308 win 5R barrel 

11.5 gas tube 

the gas tube is in the middle of the cam pin cutout

[shooterrex]

How about some pics.

Distance center to center of the lugs the pins go through.

[Big plat]

Here you go..sorry about the pictures..