Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 31 users online :: 1 registered, 0 hidden and 30 guests


Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

Registered users: Bing [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

Fionda Mod. 63 Semi-Auto CO2 BB gun made in Brazil

This area is for the discussion of BB or airsoft sub machine guns, and or other small arms such as pellets.
Sponsored 
  • Author
    Message

Fionda Mod. 63 Semi-Auto CO2 BB gun made in Brazil

Unread postAuthor: jackssmirkingrevenge » Tue Jul 16, 2019 7:55 am

Another airgun oddity joins the menagerie, it's complete apart from the front sight block that retains the barrel and the magazine tube:

Image

Stock:

Image

Action assembled:

Image

Action disassembled:

Image

Action front showing the spring loaded detent that stops the BBs rolling out of the barrel

Image

Action showing the sear engaged in the hammer groove:

Image

Muzzle showing the rifled 4.5mm barrel, presumably this was intended for lead BBs

Image

Rear sight:

Image

Magazine tube lock, it appears the tube needs to be removed for loading:

Image

Magazine follower:

Image

Safety in the stock:

Image

Here is a cutaway of an example found online that shows the inner workings:

Image

Image

It's a conventional hammer valve however the trigger is a double action that cocks then releases the bolt.
There is no bolt that seals the action, it's just the next BB in line that more or less blocks the breech.
The hammer spring tension can be adjusted by rotating the rear cap on the action, there is one white and one red mark.
If I understood correctly, the white mark is for filling because otherwise the hammer would keep the valve open.

The question now is what to do with it. Obviously a new front block needs to be made, but there's more that can be done.
I intend to run it on HPA, looking at the materials I should be able to take it to at least 2500 psi while retaining a significant safety factor.
The transfer port can also be opened up a little however I'll see what the performance is like just from the increased pressure and go from there.
  • 2

hectmarr wrote:You have to make many weapons, because this field is long and short life
User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 25510
Joined: Thu Mar 15, 2007 11:28 pm
Country: Chad (td)
Reputation: 287

Re: Fionda Mod. 63 Semi-Auto CO2 BB gun made in Brazil

Unread postAuthor: hectmarr » Tue Jul 16, 2019 9:21 am

Nice weapon, and improvement project. The photos let me understand their operation well.
  • 0

Weapons do not exist, they are built. This hobby is a science - totally procedural art.
User avatar
hectmarr
Colonel
Colonel
 
Posts: 636
Joined: Sat May 07, 2016 3:49 pm
Location: Yaren
Country: Nauru (nr)
Reputation: 186

Re: Fionda Mod. 63 Semi-Auto CO2 BB gun made in Brazil

Unread postAuthor: keks2033 » Fri Jul 19, 2019 1:19 am

[youtube]https://youtu.be/p4eyxfVIAXY?list=LLLL-gHGAysQyfg1o9w8okyg[/youtube]
I have a video with shooting from this rifle.
  • 1


keks2033
Sergeant
Sergeant
 
Posts: 87
Joined: Mon Feb 08, 2016 2:37 am
Country: Russia (ru)
Reputation: 52

Re: Fionda Mod. 63 Semi-Auto CO2 BB gun made in Brazil

Unread postAuthor: jackssmirkingrevenge » Sun Jul 28, 2019 7:26 am



Yes that's the one!

Did some work on it in the meantime:

Image

Set screw keeping it in place, note the fill nipple to run it as a pneumatic:

Image

Hole to lock in the magazine tube:

Image

Need to remove a bit more material and add a front sight bead.
  • 0

hectmarr wrote:You have to make many weapons, because this field is long and short life
User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 25510
Joined: Thu Mar 15, 2007 11:28 pm
Country: Chad (td)
Reputation: 287

Return to BB/Airsoft/Pellet Gun Discussion

Who is online

Registered users: Bing [Bot]

cron
Reputation System ©'