Crosman 400 Repeater scope mount needs

[Basque1]

Good morning folks:

I am new to the forum and want to thank the admins. for allowing me in. I was recommended to this forum for some help dealing with my newest acquisition; a Crosman 400 repeater. I would lie to install a 1" scope, however, the old option of the stamped 3/4' scope mount (like the 160 model) is not available nor can fit a 1" scope. I was told that this forum has the Rob Robinson scope mounts available? Is there any way I can be directed to the right source please.

Sincerely

Basque1

 

[Basque1]

If a source is located please email w

 

[survivor45]

I’m not familiar with this rifle. 
But can you show us how the scope mount , mounts to the gun ? 
Dove tail , threaded holes in the receiver....ext.

 

[Basque1]

Here is the way they should fit, the top one is the Rob Robinson's and the bottom is the Crosman stamped steel

Basque1