My foreend is stock but as I said, the angle seems raked back sorta like the FWB300. It's unique enough I left it alone though I much prefer the stockshape and size on my "C" Model Sheridan.
Yea the peep works for me! I have mine set @ 30 yards and the rifle shoots cloverleafs off a rest with Premieres.
I am in the process of re-setting all my air rifle sights to the NRA Airgun range of 25 yards. I have found that my aging eyes prefer this distance3 to 10m.