Need a new barrel

[Old Smoke]

My Cabela's Hawken was made by Investarm and is .54 caliber and a 1 in 48 twist.  I'd ike to get a slower twist barrel.

TOW has one for a TC Hawken "drop-in barrel GMT-54-C-TC-32-B".   You guys have any  idea if this barrel would be pretty much just drop in on my Cabela/Investarm rifle?

 

[Smokin' Joe]

I personally don't think so.  I recommend calling TOTW.  They would know for sure.