Ermes-Sub "Avatar" handle with latest version of Double Roller trigger mechanism

[Leche Parr]

Ermes-Sub have now released parts for their "Avatar" eurogun, the main interest being the new handle which is built around a refined version of their Double Roller trigger mechanism. Here are some photos of it, this one has white trim for the soft grip handle and butt pad, and there are other options in green and red, being the Italian national colours. There is also a two band muzzle available, but no sign yet of the intended barrel, although the handle can be used with other barrels of 26 mm and 26.5 mm internal diameter as the barrel sealing "O" ring has two alternate positions on the front boss.

The handle has a switchable safety lever which seems to be intended as a lock-out when rigging and banding up your gun rather than being used as a safety, hence rather than “S” for safe it is marked as “L” when the trigger is trapped at the top and the gun cannot release. A set of diagrams shows how it works.
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Note in this last photo you can see a window cut in the sidewall of the metal housing to reduce its weight, this window appears black and is just visible in the sear box mouth area now that the sear lever nose has dropped with the trigger being pulled. The sear lever has no biasing spring, it falls under the action of gravity or the force of the spear being propelled from the gun by the action of the bands retracting from their stretched state.

Hey, Pete just wondering if you could tell me what the offset is for the Avatar. I have a Cressi tube that I'm looking to throw this on, and I haven't been able to find that spec. I know the Cressi tube has an offset of 2.3, I if I'm not mistaken.

 

[popgun pete]

The long forward ribbed boss at its base is just on 26 mm diameter and the small track length for the shaft to sit on is 3 mm elevated from the top of that, so that is 16 mm from the axis of the barrel tube.

 

[Leche Parr]

Thanks Pete for the reply.
A friend of mine brought in the Avatar handle for his new gun build, so I was able to check it out up close. I wasn't a huge fan of the rectangular gap in the center for the camera mount, but the handle seemed rigid enough and with a roller, you have forces pulling from top and bottom. And I wish the bottom hook was deeper or could hold another wishbone.

Another friend just built a double roller using the Avatar handle.
I'd consider it if I end up building a roller one day.

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Hey, mate just on the off chance that you might know. You mentioned being concerned about the rectangular cutout and I also had the same thought. I had an issue with my last gun's handle (Cressi Cherokee) bowing upwards when loaded. Do you know if your friend had any similar issues with the build quality of the handle or is there enough material there for bowing to not be an issue?

 

[popgun pete]

Bowing if it occurs is over the length of the barrel tube, I don’t think the slot in the handle would show any movement as that area is very rigid. Any problems would only show long term if they are to occur. As nothing has been reported yet and guns have been in use there seems to be nothing to worry about.