Things I liked:Large view field allows quick target acquisition
Mounts securely on Ruger Mark I Air Pistol
Clear red dot can be seen in bright sunlight
Easy to zero once you figure out which way to turn adjusting screws Things I would have changed:Clearer more detailed directions What others should know:If you can't see the red dot it may be so far out of zero that it's not in the field of view. I had to use windage calibration to get the dot in the sight.
To mount on Ruger pistol, take off the mounts and reverse them.
Instructions are on side of the box.
Things I liked:.22 cal version
No more squirrels running track meets on my roof and leaving chestnuts in the gutters.
Things I would have changed:Trigger pull was too heavy to maintain consistent accuracy from free standing position.
Muzzlebrake serves no purpose. It gives an otherwise serious looking gun a toyish look. It doesn't make it quieter. It doesn't add enough weight to act improve balance.
The scope is usable but won't focus clearly at max zoom. It should be sold with difference scope options.
Needs sling mount.
What others should know:I swapped out trigger for GRT III. It made a big improvement in free standing accuracy.
I removed the muzzlebrake using a heat gun. It slid right off after about 20 mins of heating. It didn't affect bluing. It left some residue on the barrel that came off with citristrip.
LOP is 14", about an inch less than I like. Problem was easily solved with a Pachmayr Slip On Recoil Pad (Large). It slips over the rubber buttplate.
The stock is carved to fit the buttplate. If you need to significantly change LOP it will involve a lot of work/expense.
Although not ideal the Gamo Gun Buddy Sling looks like it will work well with this rifle.
Very accurate with JSB Match Diabolo Exact Jumbo Heavy.