
- description
A dual sector gear fires twice per revolution, which doubles how often the tappet plate is dragged back and halves the time it has to return. A standard plate cannot keep up with that.
So the two are sold as a pair. The gear is only half the conversion; without a plate cut to suit it, feeding falls apart at exactly the rate of fire the gear was fitted to reach.
This is a specialist route rather than a general upgrade. Dual sector builds ask a great deal of everything around them and are unforgiving of parts left at standard.
Specifications
| Specification | Detail |
|---|---|
| Parts | Tappet plate and dual sector gear |
| Versions | Version 2 or Version 3 |
| Manufacturer | SHS |
| Sold as | Matched pair |
Good to know before you buy
Dual sector conversions need short-stroking, a strong spring, a motor that can turn it and a trigger unit that can keep up. Fitting the gear alone rarely ends well.
Frequently asked questions
Do I need anything else for a dual sector build?
Usually yes. Short-stroking the piston, a heavier spring and an electronic trigger unit are the normal companions. It is a project rather than a part swap.
Can I use the gear with my existing tappet plate?
That is what the set exists to avoid. A standard plate is not cut for the timing a dual sector gear imposes.
What ratio is the gear?
Our supplier does not publish one for this set, so we are not going to state it. Ask if the figure matters and we will check the part.