Colt 11.5 upper work with suppressor?

General Firearms NFA
1

I found a good condition Colt 11.5 upper for $650. Would this barrel length be OK to use suppressed?

Does that price seem like a good deal? Thanks.

2

Yes.

It depends on how good “good condition” is.

3

Why wouldn’t it work? Assuming no one has monkey fucked with it people use 11.5" SBR’s all the time. Plenty of threads here about it.