CALIBRE 22 L.R.
CAPACITY 10 ROUNDS DETACHABLE BOX
TYPE OF FIRE SELECTIVE; SEMI AND FULL
AUTOMATIC FIRING FROM CLOSED BOLT SYSTEM
THE SAFETY SELECTOR LEVER AND ITS FUNCTION:
The safety selector lever has three position settings and is conveniently located where the thumb can manipulate it freely.
The first setting is SAFE, the second is SEMI AUTO, and the third is FULL AUTO.
Set the selector lever to the semi-automatic notch. Like most of the systems described herein, the trigger utilizes a trip to engage with the sear. At this setting, the selector pin notch is deep enough to permit overtravel of the trigger to disengage its trip from the sear. This will cause the sear to bounce back to normal position during bolt travel. The trigger must then be released for each successive shot.
FULL AUTOMATIC FUNCTIONING:
Set the selector to the full automatic setting. In this setting, the selector pin notch is not as deep as the semi-automatic notch is. This is necessary to control and prevent overtravel of the trigger so the trip will not disengage from the sear. When the trigger is pressed in this mode, the trip will hold the sear down and out of engagement with the hammer, resulting in full automatic functioning.
THE AUTOMATIC CONNECTOR AND ITS FUNCTION:
The automatic connector has a built in sear to catch the hammer (in the Squires Bingham model it is the firing pin) during rearward recoil, holding it in cocked position until its connector toe is forced up or tripped by the fully closing bolt face. This will release the hammer to hit the firing pin (this applies on the full automatic setting), to fire the weapon fully automatically.
As with most of the conversion models described herein, use of steel sheet 1/16 inch thick for the new trigger housing frame is prescribed. The trigger mechanism (trigger, sear, connector, etc.) is constructed from 1/4 inch steel plate. The grip is one piece stock secured to the trigger housing frame by a single screw mating with a cross bolt nut in the stock.
The connector cover is also a formed steel sheet about 1/16 inch thick.
Refer to diagrams for full scale illustrations and style.
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