The Breech is the iconic part of the Nimble.
It makes changing filament a snap and allows the filament path to be fully visible when removed. It also is a very small piece of plastic and more than any other part of the Nimble it is subject to wear and tear.
Note: The Photo shows the body with the idler bearing and shaft inserted. That is how the spare Breech will be shipped.
This is the Breech for the Nimble V1 through to V1.2, and not suitable for the Sidewinder.