Seac asso c/r to s/r conversion?

[Jon305]

Ill be picking up another gun in the near future, i want to get a long modern pneumatic, which looks like thatll be the seac asso 135, however id like it without the power reducer, is it possible to buy the s/r version and just swap out the barrels to extend it to a 135 length? Or to buy the 135 and swap out the handles? I havent seen a 135 without the power reducer

 

[popgun pete]

You can take the power regulator block out and just leave the control lever in place to seal the opening in the selector gate. Alternately you could buy a replacement rear handle for the single power gun and swap it over. The power regulator gun inner barrels have an "O" ring groove for the power regulator bulkhead sealing, the single power guns don't, but everything else is the same. At times you can find the inner barrel in the single power gun has that groove where they have just used the same inner barrel in all guns to save on inventory of parts.

 

[Jon305]

Awsome thanks

 

[popgun pete]

Seac Sub have a revised speargun parts diagram and parts list for 2021 (revision 1) here.

https://www.seacsub.com/wp-content/uploads/2021/04/SPARE-PART-CATALOGUE-FREEDIVING-2021-REV.1.pdf

 

[Jon305]

Thats gonna be useful to have, thanks alot, maybe ill do some fiddling around with parts

 

[popgun pete]

A photo of Sten inner barrels, you can see the groove for the power regulator bulkhead sealing "O" ring and retaining clip that holds the regulator block in place. On the completed gun the power regulator block is trapped between the handgrip which is held by the inlet valve body which serves as a nut and that retaining clip. The retaining clip is essentially a plastic circlip which is sprung over the inner barrel and is best removed after unscrewing the inlet valve body first and that means pulling the trigger transmission pin out after removing the trigger pivot pin. Otherwise you will break things if you try and dig the clip out.