Threaded section is a glued on sleeve. They're usable and accurate but rough as a cob. That's a fair price. Though it seems like we got one cheaper on sale.
I bought my son one 2 years ago in 308 for Christmas. Put a Vortex Crossfire on it and he really likes it. Killed 3 with it last season. He shot a big doe close to 250 yards and DRT