CAD drawing for inner barrel Mares

[caurro]

As a title I look for the CAD drawing (dvg or dxf format) of the 13 mm Mares inner barrel.
Do you know if I can find it and download it somewhere?
I need to know, exactly, the location of the holes for the hooking tooth.
Thank you in advance to those who will answer me.
Caurro

 

[popgun pete]

You will only find a drawing if someone has made themselves an inner barrel as Mares will not have released any of their engineering drawings. You can take measurements off a component if you have a dismantled gun, but why do you need it? The tubing in the correct size will be hard to source, so if you need a barrel you can buy them as spare parts.

Mares pneumatic speargun Sten/Jet Inner Barrel for underwater spearfishing | eBay

Inner barrel for Mares JET/STEN 700 code: 3180799409. Inner barrel for Mares JET 580/Ministen (580) code: 3180799404. Inner barrel for Mares JET 410/Mini ministen (410) code: 3180799409. Price for one piece.

www.ebay.com.au

 

[caurro]

Ciao Pete.
I'd like to make it stainless steel...

 

[popgun pete]

Then to reduce the weight you will need to machine it down where there is a straight run of tubing. Basically forwards of the regulator block bulkhead and up to the muzzle nose cone bulkhead seal.