G7/A1 rotobreech question...

[sniper1rfa]

I know the G7 and A1 both lock the rotobreech by pushing the bolt forward.

But i dont know how the knob works. How (exactly) does the knob adjust where the ram retracts to? Is it simply a screw and a pin, or is it more compicated that?

A good discription would be appreciated. Pic's would be superb. :)


And before i go about figuring how adapt that to my 05 speed, would a G7 ram cartridge drop into an 05 speed?

The reason i ask it the action of pushing the bolt forward leaves the lip of the bolt much closer to the feedtube, which would limit rollback.

[warpedx]

The bolt is set forward by the twisting of the knob. It isn't really a thread, but a slot at an angle. Turning it forces the backstop of the ram forward, allowing it to only return so far. Putting it in a speed would take some work. The ram isn't threaded in, it's held in place by a pin. Not sure if the air ports would line up either.

[sniper1rfa]

looks like the ram, with a new hammer, will drop in with minimal effort. The body is the same length and diameter, ports are in the same spot. Only difference is the attachment method, which i can fix either of two ways.

I could press a threaded ring onto the outside of the ram, or i could mill the body and frame for the pin. Either way would be pretty simple, though the threaded ring is less damaging to the gun itself.