The barrel is integral with the receiver. The tube that houses the recoil spring sits atop the barrel. The Bayard utilizes the same spring steel extractor, with a little wedge welded onto the end, as
the Model 1900 Browning. The breech block is of a piece with the slide. The slide represents a very complex piece of machining. The upper portion that houses the spring and spring tube has been
drilled out, and the rear of it has been plugged with a carefully machined piece of metal.