Gunsmithing Need a 14-15” 308 handguard actually in stock

[cast1]

My current large frame AR is getting swapped from 6.5 to .308. My 15.5” handguard is just a shade too long for my suppressor to mount. Can’t find a decent handguard in stock anywhere. Upper is MEGA MATEN.

Can anybody recommend one located at a vendor with stock please?

Many thanks,
Brian