Air Gun Home :: View topic - Is there anything I can do to a Gamo Viper?

toadmyster223 · Senior Member

I'm pretty satisfied with this gun, shoots great, lots of power and speed. I was wondering what kind of simple modifications I could do to it. Would it be difficult to mount in a wooden stock? Can I work on my trigger at all?

And I know I'm gonna catch some hate for having a Gamo, but it wasn't too expensive, and I've been pretty satisfied with it for the few years I've had it. Can't really afford to invest in a new gun, but I want to spice mine up a little.

SMP · Silver Status Member

Why would you catch hate It's an airgun and you like it...thats what matters
Yes there sure is

A basic lube and tune is universal and is well suited for any of the chinese clones

Replace the plastic hinge washers with some premade or homespun brass versions

Yes the trigger can benifit greatly from basic polishing or replacement with a suitable aftermarket.

Moving from one stock to another is usually a piece of cake. Anything within your clone family will fit with minor work usually

radar · Silver Status Member

Is this a B18/19 platform? If so, there are triggers available....

toadmyster223 · Senior Member

B18 or 19? How would I tell that?

SMP · Silver Status Member

Yes it is a B18/19 varient

toadmyster223 · Senior Member

Can anyone give me a quick rundown on how to take it apart? I don't wanna trump myself and not be able to put it back together when I want. I see one big obvious screw behind the trigger, but nothing else. Looks like there might be some hidden under the moldings in the forearm, but I don't want to pry them off and find out blindly. Who can recommend a good website for replacement stocks? I was sort of thinking of carving my own from a rifle blank.

Just found a very detailed tune-up guide for B19s, but none of my bolts match their descriptions, lol.

SMP · Silver Status Member

Your rifle is the same as the phantom, Quest, classic, optimus etc etc etc.

Google b18/19 variants for a complete list.

Yes there two screws in the forearm and the one behind the trigger.

Please do a little research before you try to open up the main tube.It not scary but you can be injured if you don't restrain the spring..There are lots of very informative you tube videos

toadmyster223 · Senior Member

Indeed, I did find something about making a spring compressor. Alright, cool. Gotta say, Google isn't helping me very much

toadmyster223 · Senior Member

Now, if all I want to do is take the assembly out of the stock, and fiddle with my trigger, will I have any reason to decompress the spring? I'm afraid that if I take these forearm nuts out somethings gonna hit my in the face and/or nuts

SMP · Silver Status Member

Nope the family jewels are safe.

toadmyster223 · Senior Member

Great. I'm really having no luck finding any wooden stocks, surely one of you guys knows a good website that I'm just not finding. Best I've found is people swapping on forums.

Also, I wanted to lap my barrel crown, but I was quickly thwarted when I found the big wonky thing on end of my barrel that the fake, shiny, outside-shroud-thing screws into. Looking down into it, it looks like my pellets have to travel through a good half inch of nothing after the rifling stops, and I don't where my crown could begin. Could I lop the whole end off my barrel and rebuild a shroud, or do you think that would **** up my trajectory? Having looked at the thing in the end of the barrel, I'm surprised I get any accuracy from it at all

SMP · Silver Status Member

Yes you have to get all the stuff off to do a crown. I have never worked on a viper but I have yet to see a B18/19 that didn't dissasemble in one of two ways

The versions with a plastic muzzle brake/foresight usually tap off with a block of wood and a hammer

The versions with a shroud tube the cap unscrews and the shroud slides off.

http://youtu.be/8PG-VHKfe0Y

radar · Silver Status Member

toadmyster223 · Senior Member

I've got a buddy that I think can do a semiprofessional job on the barrel. I dunno where I picked up this bug to mess with my rifle, but the good weather really has me itching haha

Slavia · Moderator

I think originally the B18/B19 was a Chinese clone of the Gamo 440, with the B18 in .177 and the B19 in .22. Then Crosman started marketing them under both the Crosman and Remington brands, and under a slew of model names. Look at the parts lists for many of the Crosman break-barrel guns and you'll see "B18" and "B19" in the part numbers for just about everything:
http://www.crosman.com/cs/manuals/crosman-rifles

Polishing a muzzle crown isn't a hard process - check this link out:
http://www.airgunhome.com/agforum/viewtopic.php?t=15

This was my jump into the B18/19 world:
http://www.airgunhome.com/agforum/viewtopic.php?t=1760&start=0