Question about Crosman 1377 177 Single Shot Air Pistol

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My crosman 1377 won't pump up. Is there a replacement part available for this problem?

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The pumps seal is bad so take it apart and cut a piece of leather out to fit
Coat the leather with Vaseline and it will operate just fine for you

Posted on Jun 07, 2010

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Hello. Go to this site and down load the manual and the parts diagram for your pistol http://www.crosman.com/airguns/service/manuals/crosman-pistols

This info will give you knowledge to identify the faulty part. Hopefully they still have it available. J.

Posted on Jun 07, 2010

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Posted on Jan 02, 2017

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1 Answer

Crosman 1377 single shot pellet air pistol-how do i remove pellet from barrell?


if you dont have a cleaning rod for it you can go to your local bass pro/cabelas/outdoors store and get a cleaning rod for a .17 caliber for fairly cheap. you should be able to push the pellet out or clean it if there is dirt or grime in it. and make sure you use the right caliber pellet! (:

Dec 24, 2011 | Crosman 1377 177 Single Shot Air Pistol

1 Answer

I have a crossman 1377 (177) cal pellet pistol. Is it ok to shoot BB'S in this gun? Does it damage the rifling in the barrel? Thanks, Gary


yes it safe to shoot bb,s in the 1377 pump pistol,i have 3 of them they actually shoot true'er and with more vilocity

Sep 19, 2011 | Crosman 1377 177 Single Shot Air Pistol

1 Answer

Older Crosman 1377 Air Pistol. Believed to be bad seals. I'm told I can buys the seals from plumbing supply store and fix is easy to do myself with no experience. True?


Yes. This is as simple as replacing O-rings and seal bushings. you may get out for less than $5 worth of supplies. Just be sure to label everything as you take it out of the gun and lay out the parts in the order you removed them. this will make reassembly MUCH less painful. Oh yeah.... remember to clean and oil the parts as you put them back in.

Apr 11, 2011 | Crosman 1377 177 Single Shot Air Pistol

1 Answer

Pistol will not pump up


Sounds like the O-ring inside the pump mechanism is bad or going bad. You can try to add a little lubricating oil and see if that can stop the O-ring from leaking.

Hope that helps!
Please don't forget to rate.

Dec 26, 2010 | Crosman 1377 177 Single Shot Air Pistol

1 Answer

How does it operate crosman air pistol 1377


Ok, instead of writing, I'll link this video for your convenience.

Dec 21, 2010 | Sport & Outdoor - Others

1 Answer

Lack of air power


Check out the manual and parts diagrams on this site. They do carry some parts.

Aug 02, 2009 | Crosman (4032)

1 Answer

Crosman 1377 air pistol


the seal must be broken. send it back to whom you bought it from and get an exchange

Oct 22, 2008 | Crosman (4032)

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