Hello all. Looking for measurements or a technical drawing for a Tavor X95 13" barrel.

I would like to lathe a barrel step down on a 16.5" barrel to install a "Stabilizing Sleeve" for the "short X95 handguard."

Also, is the "Stabilizing Sleeve" the same part for both 16.5" and 13" barrels?

Any other suggestions or cautions?