Changes

The sector gear is the gear that directly engages the piston, and is the final step in creating the amount of torque necessary to pull back the spring. It has a large, and clearly defined rack of the teeth that engage the piston, and a small rack on the underside that engage the spur gear. It also has a small nub on the inside of the first, larger rack that engages the tappet plate and allows it to function. There is also a small egg-shaped nub on the underside of the sector gear, which engages the cut-off lever, which is necessary to retain proper semi-auto function.

=== IIj. The Anti-Reversal Latch: ===