Technisub Ranger shorty - removing inner barrel

[spoolin01]

I've either got or had a Sten which I serviced at least once, but I don't recall what you describe. Maybe a later version.

The Mamba with Seac handle has even a different system. The screw-in outer fitting, that looks externally like the trigger pin plugs of the other Assos, is hollow and has two small o-rings in the hollow. Perhaps at one time one of those was a backing ring instead. Then below that is something aluminum that looks like a pop rivet. The ~1/2" long shaft of that piece penetrates through the handle housing and a small bit of the end protrudes into the hollow bore inside the handle. The mushroom head fits flat against the bottom of the trigger pin well (can't recall now but I think there's an o-ring under the head), and the plug with the two o-rings sits on top of that. The two o-rings are put under slight compression as the plug is screwed in. I assumed the leakage was around the crude 1.5mm pin, but I guess I haven't confirmed that. I just found a 2mm pin that I'm not sure where it belongs, but it's about the right length and when I get a chance I'll see if it will fit through the trigger pin passages.

 

[popgun pete]

I've either got or had a Sten which I serviced at least once, but I don't recall what you describe. Maybe a later version.

The Mamba with Seac handle has even a different system. The screw-in outer fitting, that looks externally like the trigger pin plugs of the other Assos, is hollow and has two small o-rings in the hollow. Perhaps at one time one of those was a backing ring instead. Then below that is something aluminum that looks like a pop rivet. The ~1/2" long shaft of that piece penetrates through the handle housing and a small bit of the end protrudes into the hollow bore inside the handle. The mushroom head fits flat against the bottom of the trigger pin well (can't recall now but I think there's an o-ring under the head), and the plug with the two o-rings sits on top of that. The two o-rings are put under slight compression as the plug is screwed in. I assumed the leakage was around the crude 1.5mm pin, but I guess I haven't confirmed that. I just found a 2mm pin that I'm not sure where it belongs, but it's about the right length and when I get a chance I'll see if it will fit through the trigger pin passages.

It is actually one of the very first Sten models, this one, they had a bright shiny silvery tank. The early guns had no trigger sensitivity adjustment screw, which is not really necessary. They also had a metal rod that holds the handle butt plate on and is screwed into the grip handle.

There have been a number of versions of the Asso that look virtually identical, and that doesn't include the Asso Up which has recently appeared with either a red or yellow handle depending on whether it is a power regulator equipped gun or single power.

 

[popgun pete]

Seac Asso: story of a success

It has not been the first pneumatic speagun, but the Asso is a historic model by Seac, sold in very high numbers. It is not the most revolutionary, but

apneapassion.com

 

[spoolin01]

Seac Asso: story of a success

It has not been the first pneumatic speagun, but the Asso is a historic model by Seac, sold in very high numbers. It is not the most revolutionary, but

apneapassion.com

Great article. I suppose mine are 2nd generation, but there is not much of the decals left. I'll look more closely.