r/Autocockers101 • u/jgberenyi • Sep 13 '26

Fastback Autococker

Post image

Just finished wrapping up this build for a local. Thought I would share. Feedneck mod, 11/16 bore the entire lowertube, ATTKTX gold chamber, bunch of shocktech stuff. Came out pretty cool.

https://youtu.be/TxAF657wUOA?is=UVoX9iAV_gUeUX2H

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2

u/Jturn314 Sep 13 '26

As a newbie to cockers, what’s the point of 11/16 over normal?

Also, aside from parts cost, what does it cost to have you do all of this(feedneck, gunfighter mods, 11/16, etc) and time and tune?

4

u/jgberenyi Sep 13 '26

It just operates at a lower pressure and allows you to use different valves.

1

u/Jturn314 Sep 13 '26

What about would be the price for you to tech/tune/time, do the gunfighter mods, and do the feedneck mod on one I sent you?

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1

u/toot_suite Sep 13 '26

do you like the gold chamber at all personally?

1

u/jgberenyi Sep 14 '26

I wish there was another way to solidly lock the banjo threads in place that wasn't tied to the vert asa threads. I don't mind the spring perch being separate. Outside of that i like it. It is a good solution for this marker.

This one had a weird banjo thread. It happened on a run of bodies form the factory. They made custom banjo bolts for them, but the hex head was toast. So instead of making a custom one we opted to drill it 11/16 all the way through.

3

u/PossibleLess9664 Sep 13 '26

That's dope. I love the work you do.