Assisted Short-Throw Safety Selector for Firearm

Abstract

Provided is an assisted short-throw safety selector for switching the firearm between a FIRE position and a SAFE position. The selector is interchangeable with any standard short-through safety selector and differs from the conventional selectors of this type by having a profiled camming surface that guides the spring-loaded safety detent. This profiled surface is modified so that in switching between the SAFE and FIRE positions the detent automatically falls into the FIRE position after passing through an inflection point of the profiled surface. For this purpose the FIRE position dimple is located at a lower level than the SAFE position dimple. The rapid fall automatic fall of the detent into the FIRE position dimple occurs after rotation of the selector by 80° to 20°, preferably 50° to 30°.

1 . An assisted short-throw safety selector for firearm having a receiver with at least a FIRE position and a SAFE position, a trigger for engagement with the short-throw safety selector, and a spring-loaded safety detent for fixing the assisted short-throw safety selector selectively at least in a first indexing position and in a second indexing position, the assisted short-throw safety selector comprising:
 an integral cylindrical body having one end with a first support portion, another end with a second support portion, and a selector core between the first support portion and the second supporting portion for engagement with the trigger;   an indexing features on at least one of said support portions for engagement with the spring-loaded safety detent, the indexing features comprising: a guiding surface for engagement with the spring-loaded safety detent, the guide surface having at least a first dimple for fixing the spring-loaded safety detent in the SAFE position and the second dimple for fixing the spring-loaded safety detent in the FIRE position, wherein the first dimple is located deeper in the integral cylindrical body of the safety selector than the dimple of the SAFE position.   
     
     
         2 . The assisted short-throw safety selector of  claim 1 , which is interchangeable with a standard assisted short-throw safety selector for firearm having a receiver with at least a FIRE position and a SAFE position, a trigger for engagement With the short-throw safety selector, and a spring-loaded safety detent for fixing the assisted short-throw safety selector selectively at least in a first indexing position and in a second indexing position. 
     
     
         3 . The assisted short-throw safety selector of  claim 2 , wherein between the first dimple and the second dimple the guiding surface has a convex camming profiled portion that comprises an ascending portion, a descending portion, and an inflection portion between the ascending portion and descending portion. 
     
     
         4 . The assisted short-throw safety selector of  claim 3 , wherein the safety detent has a longitudinal axis, the throw safety selector has a center of rotation, and an angle between the longitudinal axis of the selector detent, when the detent is snapped in the second dimple, and a radial line that extends from the center of rotation of the safety selector to the inflection point is in the range of 80° to 20°. 
     
     
         5 . The assisted short-throw safety selector of  claim 1 , wherein the guiding surface comprises an ascending portion, an inflection portion, and a descending portion, 
     
     
         6 . The assisted short-throw safety selector of  claim 5 , which is interchangeable with a standard assisted short-throw safety selector for firearm having a receiver with at least a FIRE position and a SAFE position, a trigger for engagement with the short-throw safety selector, and a spring-loaded safety detent for fixing the assisted short-throw safety selector selectively at least in a first indexing position and in a second indexing position. 
     
     
         7 . The assisted short-throw safety selector of  claim 6 , wherein between the first dimple and the second dimple the guiding surface has a convex camming profiled portion that comprises an ascending portion, a descending portion, and an inflection portion between the ascending portion and descending portion. 
     
     
         8 . The assisted short-throw safety selector of  claim 7 , wherein the safety detent has a longitudinal axis, the throw safety selector has a center of rotation, and an angle between the longitudinal axis of the selector detent, when the detent is snapped in the second dimple, and a radial line that extends from the center of rotation of the safety selector to the inflection point is in the range of 80° to 20°.