Air Gun Home :: View topic - B3-B4?

Alstone · Moderator & Site Supporter

Has anybody got a parts list / Diagram for any Chinese B3 or B4 under leaver air rifle.
I've looked all over the place but can,t find one, so if anyone has got a manual and can scan the Diagram out of it, it would be very much appreciated.

Al

under500fps · Veteran Member

I don't know if this will help you.

http://www.charliedatuna.com/airgun_docs/B-4-2%20TuneUp.doc
http://www.charliedatuna.com/airgun_docs/Fast%20Dear%20Tune%20up.doc

AirGunEric · Site Admin

Can parts be found reasonably easy for those BAM guns? There was a time when that was a problem in most places- has that been corrected?

Alstone · Moderator & Site Supporter

Cheers Rene
Just what I'm after, there even better than a parts Diagram. Thumb Up!

Eric
I'm not to bothered about spares, the reason I asked is that I have been offered a DB4 Delux under leaver rifle, and I like to know how it works before I buy, It's one week old and £40.00, can't be bad.

Al

under500fps · Veteran Member

More on the B3 by Todd Cooper
http://my.tbaytel.net/~coopers@tbaytel.net/XS-B3%20Review/

StevieLaner7777 · Moderator

Alstone · Moderator & Site Supporter

Hi Stevie
The guy who bought it had the same thoughts as me, Get a springer for the winter, but after he bought it he didn't like having to cock it every time he shot, and knowing that I was after a springer offered it to me for £40.
Mind you the shop that has them sells the standard version for £40 and the delux for £50, so I'm saving a tenner, still not a bad deal and it will give me somthing to play with this winter, The shop is Belas in Mablethorp but not on the internet.

They sell most of the chinese guns plus others, if you wanted anything I could always get it and send it on, or I could PM you with the phone number. The best price I've seen for a DB4 elseware is £69.99.

Al

2RCHA · Veteran Member

Al,,I noticed your from Mablethorpe/Lincolnshire,,Ever hear of a lad by the name of Allan Davey?, or anyone in the Woolley clan?,,sorry for going off-topic guy's,,Thank's, Andy.

Alstone · Moderator & Site Supporter

splatfest · New Member

The B3 and B4 are virtually the same gun.My B3 .22 came full of that wonderfully gloopy stuff the chinese call oil.I fitted one of these : http://www.nmpairrifles.co.uk/air-rifle-cleaning-kit-for-22-plus-some-spare-parts-p-67205.html?cPath=22_1678
to my B3, theres a bigger spring and a spare synthetic seal in the kit.Polishing the internals and lubricating properly makes it very smooth and consistent to shoot,but not that powerful maybe 8lbft on a good day.

Alstone · Moderator & Site Supporter

Hi splatfest
Welcome to the site, and thanks for the info on the cleaning kit, is the spring the same as the one you took out, also what seals are in the kit.

I got a B4-2 .177 in the end and it's typical Chinese qualty rough!, anyway I've cleaned it up, See: http://airgunhome.com/agforum/viewtopic.php?t=779

And it shoots a treat now.

Al

splatfest · New Member

Hi Alstone
The spring is the same diameter and pitch as the stock spring but quite a bit longer.It does fit,but you have to modify the spring guide slightly to allow for the extra length.(The extent you mod the guide is dependant on whether you have the black or the white spring guide.)There is also a spare piston seal and 2 transfer port seals as well as some gloopy chinese oil and a barrel cleaning rod and a spare sear and sear spring.I made a delrin top guide for the spring while I was at it and the cocking and firing is very smooth considering the price of the gun.One thing I have found with these guns is they are sometimes let down by the barrels.They are sometimes bent or they can be drilled off centre a bit.Other than that they are a decent plinker.

Alstone · Moderator & Site Supporter

Cheers splatfest
I'll probably get one of those kits, the sear and sear spring are diffrent on the B4 but it's worth the money for the spring and seals, I assume the seals are the cone shaped ones that go beteen the piston and the barrel?

Al

splatfest · New Member

Alstone · Moderator & Site Supporter

Hey splatfest

I got one of those cleaning kits from NMP rang the guy up yesterday to ask him about it but he didn't know a lot only what others had told him, anyway the spring looks about the same length as a B4 spring the same goes for the piston seal, I'm not sure about the seal that goes between the piston and the barrel ( mine is .177 this is .22) but I think I can make it fit, the rest of the gear will come in handy, so all in all a good buy.
I got a spare trigger sear and spring with it for a B3 so if you want a spear let me know.

Al