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crossman 1377 mods
Posted: Sun Mar 16, 2008 4:59 pm
by jon_89
Any body know how to get more power out of a crossman 1377 pellet pistol? I have pumped 24 times and that gave it alot more power but I don't think this is to good to do.
Posted: Sun Mar 16, 2008 6:04 pm
by hi
buy a real gun...
bb gun are just for fun, not much else.
Posted: Sun Mar 16, 2008 9:15 pm
by mark.f
Bullshit.
They sell flat-top adjustable piston mods that supposedly have gotten people up to around 900 feet per second. Look into that on the Crosman airgun forums.
Posted: Sun Mar 16, 2008 9:20 pm
by NO_NAME
i wouldnt recomend pumping it over 15 times outher wise it will start to leak
Posted: Sun Mar 16, 2008 10:06 pm
by jon_89
Yeah I only pumped it up 24 times once. I am planning on getting the stock and a red dot for my gun. I have looked on several sites that sell performance parts but I want to keep this fairly cheap. Another interesting thing I found were silencers. Do you think a silencer would be effective?
Posted: Mon Mar 17, 2008 9:26 pm
by Acdcmonkey1991
No, a silencer won't do much. I own a 1377 and if your'e looking for more "punch" upgrade to a .22 barrel, thats what I did. the devastation that the round does increased significantly. Btw, what were the preformance parts sites you saw?
edit: two red stars!
Posted: Mon Mar 17, 2008 9:34 pm
by jon_89
Posted: Mon Mar 17, 2008 9:42 pm
by A a r o n
This site would be helpful if you want to DIY
http://www.network54.com/Index/12861
Posted: Tue Apr 15, 2008 7:42 pm
by jon_89
Does anybody know of a site that has a detailed picture of the internals of this gun? I have looked on google and have been unsuccessful.
Posted: Tue Apr 15, 2008 8:26 pm
by judgment_arms
Friend, your at the wrong forum, well this is a pneumatic projectile relocating device, it’s not a spudgun.
Ask the guys at
Crossman Airgun Forum, they’ll answer your questions, if you ask ‘em nice enough that might even spoon feed you.
Posted: Tue Apr 15, 2008 11:37 pm
by jon_89
Well it is in the right forum because this is the "non spudgun related discussion" forum.
Well with more searching i found some stuff but it wasn't really useful.
Posted: Wed Apr 16, 2008 1:59 am
by Gippeto
Posted: Wed Apr 16, 2008 9:32 pm
by jon_89
Thanks Gippeto that was really helpful.
Now I got to find the time to do it.
Posted: Wed Dec 31, 2008 1:21 am
by jon_89
Okay sorry to bring up an old topic but finally I have figured what I will probably do, just looking for your thoughts. I will convert my 1377 to a .22 caliber using crosman part #2240SBPK which is a .22 breech and I have a 14.6 inch .22 barrel from my 2250xt. Is there anything else you could think of that I would need.
Posted: Wed Dec 31, 2008 1:45 am
by Gippeto
You'll have to drill out the front sight/barrel band to 7/16" so that the barrel can pass through.
Or; (If you plan to mount a scope.)
Order a barrel band and screw for a 2289. (FYI..There is no front sight on this one.)
Barrel band part # 788 B011
Screw part# 781 A012
What happened to the 2250, and what are you doing with it?
The stock from the 2250 should fit the 1377 as well.