ICS-128 Incorrectly shoots in full auto after depressing forward assist knob

[Cokeman]

Originally Posted by Kos-Mos

In the picture with the cut-off lever in the right position, the plastic part that ride over it. The front section is sometimes just long enough to prevent the cut-off lever from dropping down after the shot. That makes it useless to cut the fire when in semi.

Since that part is molded, sometimes the mold is not perfect and that part is stretched too far forward. Removing the sharp front edge usually solves the issue and does not changed the function of semi or auto.

Are you suggesting that I remove the sharp front edge of the plastic part?

[Kos-Mos]

Originally Posted by Cokeman

Are you suggesting that I remove the sharp front edge of the plastic part?

Yes, but really little.
You can use a fine metal file or cutter to "scrape" the edge. Usually that is enough.

If you remove too much, the cut-off lever won't engage properly when it should.