Autococker external IVG - Nested in backblock - Looking for manufacturer/Information

[Hellion360]

This IVG works a lot like a Belsales Rex Dialer but the knob nests inside the back block.
It uses Nelson Springs.

It feels like a Bob Long or TASO item. But doesn't have any branding.

Does anyone know manufacturer or details?

IMG_7804.jpg IMG_7805.jpg IMG_7806.jpg

[Hellion360]

Here is a picture on a marker.
Bolt in it was a bob long (pretty sure) using an adjustable bolt like a venturi/ preventing rollback.

732504834_28185367021066364_7406307418539817069_n.jpg

[BrendanB]

can turn it up in middle of game? lol love it.

[Hellion360]

There is a spot for a tournament lock screw. But yup.

[scottieb]

I've seen these before. I can't recall the manufacturer.

[DocsMachine]

I vaguely recall seeing this in one of the magazines, years and years ago, and getting into an argument with some guys in my crew about it.

I... think?

Roughly pre-'Cocker, or at least very early 'Cocker era. It might be one of the first "Nelson spring" conversions I recall seeing in the magazines. Can't recall the details, my brain's too old and shriveled at this point.

But either way, tool-less velocity adjusters were one of those things that disappeared as fast as they appeared, so whenever it did appear, I'd wager not too many were made or sold.

Doc.

[Ecapnation]

Wasn't a major player.... Iirc they made this then disintegrated

[Trbo323]

Hold up, when cycling, when the back block is back this would basically put 0 or very little spring tension on the hammer right? This would be amazing for a pump.

Maybe. Now that I think about it, you would load the spring on the forward stroke, that might be weird

Sent from my motorola edge 2024 using Tapatalk

[Hellion360]

No, the adjuster is not attached to the back block.
Instead the back block fits around the adjuster. It does not touch the adjuster, really just surrounds it.

[Walker]

I had one of these once... I could never get it to work reliably....

[Hellion360]

I have posted this on ebay as a no-reserve auction if any of you feel interested to check it out.

https://www.ebay.com/itm/318748967139

[LightArmsJXF]

I've been trying to PM you but it keeps saying that there's 95 characters when the limit is 85. I don't know why.

I'd be interested in this if you're willing to ship to the UK. I don't know anything about it but it looks interesting and I'd like it for one of my cocker projects.

[Hellion360]

Messaged you

[LightArmsJXF]

Thanks

[LightArmsJXF]

Now that I've received this weird & wonderful piece and fitted it to my pre-2k pump project... Does anyone remember the manufacturer of this thing? Any info that'd help me search for further info on the interwebs would be much appreciated. I've tried Autococker/Cocker with a combination of EVA/"External Velocity Adjuster", RVA/"Rear Velocity Adjuster" and "Nelson Spring Conversion" but I'm finding nothing so far. I'm really curious about its history and stuff if anyone can remember anything else. Not to mention I'd like to find a manual of some sort if there's one floating around cyberspace.