Magazine catch retainer plate

Abstract

A trigger shoe assembly and magazine catch retainer plate. The trigger shoe assembly has a separate trigger shoe and trigger bow that can be individually attached to a firearm frame. The magazine catch and corresponding retainer plate ensure that the magazine well of the firearm can fit a double stack magazine.

What is claimed is: 
     
         1 . A firearm comprising:
 a frame;   a trigger shoe assembly comprising:
 a trigger shoe further comprising a first engagement feature; 
 a trigger bow further comprising a second first engagement feature configured to engage with the first engagement feature; 
 a third engagement feature securing the first engagement feature and the second engagement feature into engagement with each other, 
   a magazine catch comprising a catch body, a catch spring, and a release mechanism configured to disengage the magazine catch;   a magazine catch retainer plate positioned between the trigger shoe and the magazine catch, wherein the magazine catch retainer plate is configured to prevent the catch spring of said magazine catch from buckling into a trigger cavity behind the trigger shoe; and   an adjustment mechanism extending behind said trigger shoe, engaging with a front surface of the magazine catch retainer plate to establish a maximum allowed rearward travel of said trigger shoe,   wherein the adjustment mechanism is inserted into a trigger shoe adjustment hole, wherein the adjustment mechanism being adjustable to change the maximum allowed rearward travel of the trigger shoe, the adjustment mechanism being perpendicular to the front surface of said magazine catch retainer plate for uniform engagement.   
     
     
         2 . The firearm of  claim 1 , wherein the third engagement feature is accessible from a top of the frame when a slide is removed. 
     
     
         3 . The firearm of  claim 1 , wherein the magazine catch is configured such that a magazine well is not encroached upon by the magazine catch, enabling compatibility with double stacked magazines and P320 magazines. 
     
     
         4 . The firearm of  claim 1 , wherein said third engagement feature comprises a pin, a screw, or a bolt. 
     
     
         5 . The firearm of  claim 1 , wherein the release mechanism of the magazine catch comprises a button. 
     
     
         6 . The firearm of  claim 1 , wherein the firearm further comprises an extended magazine catch button configured to release the magazine catch from a magazine. 
     
     
         7 . The firearm of  claim 1 , wherein the adjustment mechanism further comprises at least one selected from the group of a set screw or a threaded rod. 
     
     
         8 . The firearm of  claim 1 , wherein the adjustment mechanism includes one or more markings for visual reference of the set rearward travel position of the trigger shoe. 
     
     
         9 . The firearm of  claim 1 , wherein the magazine catch is reversible or interchangeable to accommodate left-handed or ambidextrous shooters. 
     
     
         10 . A magazine catch assembly comprising:
 a magazine catch comprising a catch body, a catch spring, and a release mechanism configured to disengage the magazine catch;   a magazine catch retainer plate positioned between a trigger shoe and the magazine catch, wherein the magazine catch retainer plate is configured to prevent the catch spring of said magazine catch from buckling into a trigger cavity behind the trigger shoe; and   an adjustment mechanism extending behind said trigger shoe, engaging with a front surface of the magazine catch retainer plate to establish a maximum allowed rearward travel of said trigger shoe,   wherein the adjustment mechanism is inserted into a trigger shoe adjustment hole, wherein the adjustment mechanism being adjustable to change the maximum allowed rearward travel of the trigger shoe, the adjustment mechanism being perpendicular to the front surface of said magazine catch retainer plate for uniform engagement.   
     
     
         11 . The magazine catch assembly of  claim 10 , wherein the magazine catch retainer plate comprises a top portion and a bottom portion, wherein the top portion extends longitudinally from the bottom portion. 
     
     
         12 . The magazine catch assembly of  claim 11 , wherein one side of the magazine catch retainer plate tapers from the bottom portion to the top portion. 
     
     
         13 . The magazine catch assembly of  claim 12 , wherein the top portion of the magazine catch retainer fits with a recess on the catch body. 
     
     
         14 . The magazine catch assembly of  claim 13 , wherein bottom face of the bottom portion comprises a recess configured to mate with a protrusion on a frame of a firearm. 
     
     
         15 . The magazine catch assembly of  claim 14 , wherein one face of the top portion comprises a recess. 
     
     
         16 . The magazine catch assembly of  claim 14 , wherein the magazine catch retainer plate has beveled edges. 
     
     
         17 . The magazine catch assembly of  claim 14 , wherein the magazine catch retainer plate has rounded edges. 
     
     
         18 . The magazine catch assembly of  claim 14 , wherein the magazine catch retainer plate is comprised of at least one selected from the group of steel, polymer, and carbon fiber. 
     
     
         19 . The magazine catch assembly of  claim 10 , wherein the composition of the catch body is made of at least one selected from the group of steel, polymer, and carbon fiber. 
     
     
         20 . A magazine catch assembly comprising:
 a magazine catch comprising a catch body, a catch spring, and a release mechanism configured to disengage the magazine catch; and   a magazine catch retainer plate positioned between a trigger shoe and the magazine catch, wherein the magazine catch retainer plate is configured to prevent the catch spring of said magazine catch from buckling into a trigger cavity behind the trigger shoe.