Needs slight alteration to front scope mount and a little packing underneath, Double sided tape, Just ordered some stuff from J S Ramsbottom and also...
It appears to get a little extra FPS out of these then go for the K barrel as in the kit format as the barrel is 1.7 inch shorter than the open sight...
Springers tend to have ranges in power where the cycle works better than at others, so taking a bit off the spring could have dropped the power into...