Can you use the standard side sling adapter with the PRI flip-up front sight base?

I have a RAS and I use a KAC side sling mount, which bolt directly to the side rail of the RAS.  it works great.

Ah, yes...perhaps I was not clear...I am refering to the PRI flip-up front sight base, which replaces the standard sight base. There is no built-in sling swivel on the PRI, like there is on the standard unit; the 'side sling adapter' I mentioned is the one the military issues with the M-4 and which clamps around the barrel, passing through the front sight base.
So, what I want to know, from those PRI users out there, is there enough space between the barrel and the base for the adaptor to work; or do you just carry the gun around by hand SAS-mode?

Beuller...Beuller...anyone...anyone?

Btt...

I have two of those front sight, one is on my Colt M4 upper with ARMS SIR-M, which has a sling adaptor.  The other PRI is mounted to a 18inch SPR with PRI Gen2 tube with a ARMS SPR SWAM sleeve and it has a KAS side sling adaptor.  

I guess I did not make my previous clear enough.  Mount you sling to your handguard, there is nothing that will work with the PRI front sight.