Notched Sights and Front Sights Are HUGE

[fivestar45]

If this is the sight you ordered, it's for Sheridans. It mounts on the right side and requires a flat to be milled in the breech. So it can't be used on a gun with a right side bolt, possibly you may be able to turn it backwards and cut the flat for it on the left side of the breech, but I'm not sure about that.
http://www.amazon.com/Crosman-64-Williams%C2%AE-Peep-Sight/dp/B0002IKE6K

[Davio]

I hope since it is an option for the CCS 2300 and 2400 that it can be made to work.  If not, I can always twist the peep hole off with some pliers and duct tape it to the back of the breech, then spray the whole thing with bedliner and put some poorly cast aluminum grips on it and name it POS.    (probably turn out to be the best gun in the bunch).

[Davio]

If this is the sight you ordered, it's for Sheridans. It mounts on the right side and requires a flat to be milled in the breech. So it can't be used on a gun with a right side bolt, possibly you may be able to turn it backwards and cut the flat for it on the left side of the breech, but I'm not sure about that.
http://www.amazon.com/Crosman-64-Williams%C2%AE-Peep-Sight/dp/B0002IKE6K

You are correct, sir and the sumbeach has been sent back to PA... but, all my searching had been for "peep" and I came across a new word for me "Diopter" and found that the Williams Diopter peep will fit our guns, so I asked for an exchange (4 cents more).  That should be better.   

[bodger]

could have sworn ide seen the williams site suitable for the crosman refered to as the 64, i look forward to finding out the correct info