If temperature and humidity have a significant role in the fit of the handguard, I will expect that your handguard will be loose again in February - interesting point. Do report your experience.Before all the kafuffle with the forum, you may remember I started a thread about the loose handguard on my #5 MK1. Well the problem, courtesy of the damp Nova Scotia air has disappeared. I wonder if it will still be tight sometime in February when it's minus 40? regards marmaloon.