I don't find it any heavier than your average wood and metal gun but like I said, I only bench shoot so weight is not an issue for me. I've had total reverse shoulder replacement on my left side and I don't have a rotator cuff so that pretty much takes off hand shooting off the table for me.

I mean I can do it but I'm not very steady.
A simple Google search yields this info....
"The Xisico Sentry HC Deluxe PCP air rifle has an overall length of
48 inches (121.9 cm) and a barrel length of
19.5 inches (49.5 cm). It weighs
8.0 pounds (3.6 kg). The Xisico Sentry HC Deluxe PCP is available in three calibers: .177, .22, and .25. All three calibers share the same weight and dimensions. "