Things I liked:good quality and easy to install Things I would have changed:Crosman should include shims What others should know:After installation, I noticed a little play which was fixed with a rubber shim constructed out of gasket material(1/16 in. thick)
Things I liked:Great value Things I would have changed:Crosman should include shims What others should know:I mounted them on my 1377 and noticed that the tasco red dot was moving a bit (with the barrel). I shimmed the bottom legs of mount with 1/16 in. rubber gasket material (small strips).
Now I got ZERO play... it's ROCK SOLID. I'm very happy with the results.
It is a great alternative to a steel breech (available from Crosman for $30 plus $12 s&h)