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Airguns by Make and Model => Vintage Air Gun Gate => Topic started by: 45flint on January 16, 2018, 11:44:41 AM

Title: Crosman vintage scope mounts
Post by: 45flint on January 16, 2018, 11:44:41 AM
Just got this of EBay, guy selling them, new old stock still in plastic bag. Contains a plastic, looks like replacement part for a specific rifle with 4 screws and this mount. Never have seen the extra curved metal piece which I imagine takes up room if you mount it on a thinner barrel?  Bought it just to be vintage and have been disappointed with the aluminum ones they sell now.
(https://i.imgur.com/7sS9kdu.jpg)
Title: Re: Crosman vintage scope mounts
Post by: TerryM on January 16, 2018, 07:29:56 PM
  There should be two of those shims.  They are for use with a 7/16" diameter barrel (model 101, 102, 114, etc.)  They will work without the shims on a 9/16" barrel (model 180, 160, 1400, 400.) 

(https://i.imgur.com/V9TqtWt.jpg)

(https://i.imgur.com/QbSi50E.jpg)
Title: Re: Crosman vintage scope mounts
Post by: 45flint on January 16, 2018, 08:34:59 PM
Thanks Terry, I see on EBay pics there were two. Only got one. Going back to him.  Glad I posted pic.
Title: Re: Crosman vintage scope mounts
Post by: Renfield on January 16, 2018, 09:11:22 PM
here's my old crosman master mount & scope kit:

(https://i.imgflip.com/22tajq.jpg)

i really enjoy outfitting my air rifles with the period correct stuff if i can




Title: Re: Crosman vintage scope mounts
Post by: Mackado on January 16, 2018, 11:41:40 PM
I also bought one of these kits over at Ebay [Kit model 410], these pop up frequently but you need to make sure the components you need are included, as the sellers usually don't know what is missing from the kit, most kits I've seen are incomplete, some sold do not include this mount at all and instead include a different mount model 'UM' for other vintage models, don't know if the original Kit was supposed to include both mount models.

The Kit I bought was missing the scope, but later found the 4x japanese scope in a different kit but without any mounts, apparently these mounts were sold separately too, the crosman part number is M-156, I bought one from an online seller/dealer before I knew of the 410 kits, it was a new old stock, but the screws stripped fairly quick, metal fatigue?, if anyone can tell me what size/kind of thread those black screws are I'd really appreciate it, I need to find replacements. ::)

The one issue I found with this scope mount is that they slip off center after repeated use and/or resting on the side, especially when using the shims on the CR140 barrel, the same mount also tends to slightly rock up and down too, enough to affect your shot, I read around here the solution was to use some kind of non-slip material on the barrel or under the mount for the slippage, as far as the rocking, I never got around to look for a solution yet.   
Title: Re: Crosman vintage scope mounts
Post by: 45flint on January 17, 2018, 11:26:16 AM
Got an idea that may work.  I hate the idea of clamping metal to a painted barrel.  I think I will make two leather spacers. They will compress and hold without maring.  We will see?
Title: Re: Crosman vintage scope mounts
Post by: Renfield on January 17, 2018, 12:19:14 PM
That's a great idea!

Keep us posted
Title: Re: Crosman vintage scope mounts
Post by: TerryM on January 17, 2018, 03:16:49 PM
  I line the inside surface of the mount with electrical tape.
Title: Re: Crosman vintage scope mounts
Post by: 45flint on January 17, 2018, 04:31:39 PM
The seller is sending me another shim so all option are on the table. Still may try the leather given the compression it offers, possibly better holding power? 
Title: Re: Crosman vintage scope mounts
Post by: TerryM on January 17, 2018, 07:48:58 PM
  The model 114 in my pic has an old Crosman mount with a Weaver B4.  I have had this rifle and scope together for over four years.  It is always right on target and it is used often and a lot.
Title: Re: Crosman vintage scope mounts
Post by: Hoosier Daddy on January 17, 2018, 08:09:57 PM
Hmmmmm.
3/4" tube scopes?
I have an old Glenfield in nice condition waiting to be mounted.
Title: Re: Crosman vintage scope mounts
Post by: Mr.Spock on February 24, 2022, 09:46:09 PM
Hello Guys
I am looking for a Crosman Master mount for my Crosman 1400. Does anyone here have one to sell? I have the scope, just need the mount.
Thanks, Jim
Title: Re: Crosman vintage scope mounts
Post by: 45flint on February 25, 2022, 09:16:39 AM
Would the Mac-1 mount fit a 1400?  Then get a Scope with rings or cheap Weaver scope?  That Crosman mount is not the greatest anyway and I haven’t seen one for sale in quite a while?  The Mac-1 mounts are awesome, but not sure of the width of a 1400 barrel?

http://www.mac1airgunshop.com/product-p/crosia.htm (http://www.mac1airgunshop.com/product-p/crosia.htm)
Title: Re: Crosman vintage scope mounts
Post by: KWK on February 25, 2022, 10:39:57 AM
The seller is sending me another shim so all option are on the table. Still may try the leather given the compression it offers, possibly better holding power?
Leather will make your barrel rust. That's why you should never leave your pistol in a leather holster.
Title: Re: Crosman vintage scope mounts
Post by: Mr.Spock on February 27, 2022, 11:15:11 AM
Looked at the Mac1 mount, looks it it’s made for .177 BB gun barrel. My barrel measures 0.567”.
Still looking for a Master Mount……
Jim
Title: Re: Crosman vintage scope mounts
Post by: lefteyeshot on February 27, 2022, 11:55:58 AM
I have a couple of sets of plastic shims from Brownell to covert 1" rings to 3/4" to use the 2x vintage scopes with modern scope rings.

Also you'll sometimes see vintage scopes and mounts that are advertised as 3/4" that are actually 7/8". Hard to tell the difference.
Title: Re: Crosman vintage scope mounts
Post by: vigilandy on March 01, 2022, 01:44:30 AM
I know it doesn't help, but I just gave away two complete sets (with both shims and the plastic adapter) in the Pay-it-Forward gate.  The picture by Renfield was especially helpful in identifying all the parts.  Thank you all for contributing and making this forum a great resource.
Title: Re: Crosman vintage scope mounts
Post by: Mr.Spock on March 03, 2022, 12:01:06 PM
Darn!……still looking.
Title: Re: Crosman vintage scope mounts
Post by: Matchstickshooter on March 05, 2022, 05:36:52 PM
 Jim, PM sent.
Title: Re: Crosman vintage scope mounts
Post by: Mr.Spock on March 11, 2022, 12:29:23 AM
Crosman Master Scope mount found…..
Just wanted to let you all know that one of our members came through for me with his scope that he was not using anymore.
This accessory has made my gun complete now.
I am a very happy camper.
Thanks to this forum I was able to make a connection to obtain the parts I needed.
Thank you, Jim
Title: Re: Crosman vintage scope mounts
Post by: TerryM on March 11, 2022, 03:30:21 PM
  The one I used on my 114 worked so well, I was reluctant to change it though I do have a bigger, brighter scope on it now.