Adjustable firearm stock adapter assembly

Abstract

An adjustable butt stock adapter assembly may provide for vertical and rotational adjustment. A serrated plate may be positioned between an adapter with grooves for establishing a rotational position with the serrated plate, and a butt plate having serrations for establishing a vertical relationship with the serrated plate. The serrated plate may be operatively attached to a spring collar mounted in the adapter, such that pulling the serrated plate away from the collar and adapter overcomes the spring force and allows for adjustment of the rotational position. The butt plate may connect to the serrated plate through an engagement mechanism, such that disengaging the engagement mechanism allows for adjustment of the vertical position.

What is claimed: 
     
         1 - 20 . (canceled) 
     
     
         21 . An adjustable butt stock adapter assembly comprising:
 (a) a butt plate;   (b) an adapter having
 (i) a first surface configured for connection to a stock, and 
 (ii) a second surface for operative engagement with the butt plate; 
   (c) a serrated plate positioned between the second surface and the butt plate;   wherein the serrated plate is in rotationally adjustable engagement with the adapter, and the serrated plate is in vertically adjustable engagement with the butt plate.   
     
     
         22 . The adjustable butt stock adapter assembly of  claim 21 , wherein the rotationally adjustable engagement between the serrated plate and the adapter comprises a plurality of splines configured for adjustable engagement with a plurality of grooves. 
     
     
         23 . The adjustable butt stock adapter assembly of  claim 22 , wherein the serrated plate comprises the plurality of splines, and the adapter comprises the plurality of grooves. 
     
     
         24 . The adjustable butt stock adapter assembly of  claim 21 , wherein the vertically adjustable engagement between the serrated plate and the butt plate comprises a first plurality of serrations configured for adjustable engagement with second plurality of serrations. 
     
     
         25 . The adjustable butt stock adapter assembly of  claim 24 , wherein the serrated plate comprises the first plurality of serrations, and the butt plate comprises the second plurality of serrations. 
     
     
         26 . The adjustable butt stock adapter assembly of  claim 21 , further comprising a collar mounted within the adapter and operatively coupling the adapter to the serrated plate. 
     
     
         27 . The adjustable butt stock adapter assembly of  claim 26 , wherein the collar further comprises a spring providing a spring force to bias the serrated plate toward the collar, such that the serrated plate may be pulled away from the collar to overcome the spring force and allow adjustment of the rotational relationship between the adapter and the serrated plate. 
     
     
         28 . The adjustable butt stock adapter assembly of  claim 27 , wherein the adapter's plurality of grooves are circularly arranged about a focal point, and the serrated plate's plurality of splines are arranged in a corresponding circular arrangement. 
     
     
         29 . The adjustable butt stock adapter assembly of  claim 21 , wherein the first surface of the adapter further comprises a hook for engagement with a stock. 
     
     
         30 . The adjustable butt stock adapter assembly of  claim 29 , wherein the first surface of the adapter further comprises at least one boss for cooperative engagement with the stock. 
     
     
         31 . The adjustable butt stock adapter assembly of  claim 21 , wherein the butt plate further comprises a slot through the butt plate. 
     
     
         32 . The adjustable butt stock adapter assembly of  claim 31 , wherein the serrated plate comprises a protruding member configured to protrude through the butt plate's vertical slot, such that the serrated plate may be disengaged from the butt plate to allow adjustment of the vertical relationship between the serrated plate and the butt plate. 
     
     
         33 . The adjustable butt stock adapter assembly of  claim 23 , wherein the butt plate further comprises a vertical slot, and the butt plate's vertically aligned serrations are aligned along the vertical slot. 
     
     
         34 . The adjustable butt stock adapter assembly of  claim 33 , wherein the serrated plate comprises a protruding member configured to protrude through the butt plate's vertical slot, such that the serrated plate's plurality of serrations may be disengaged from the butt plate's vertically aligned serrations to allow adjustment of the vertical relationship between the serrated plate and the butt plate. 
     
     
         35 . The adjustable butt stock adapter assembly of  claim 21 , further comprising an engagement mechanism releasably coupling the serrated plate to the butt plate. 
     
     
         36 . The adjustable butt stock adapter assembly of  claim 35 , wherein the engagement mechanism extends through a slot in the butt stock. 
     
     
         37 . An adjustable butt stock adapter assembly comprising:
 (a) a butt plate;   (b) an adapter having
 (i) a first surface, and 
 (ii) a second surface for operative engagement with the butt plate; 
   (c) a serrated plate positioned between the second surface and the butt plate, the serrated plate in rotationally adjustable engagement with the adapter and in vertically adjustable engagement with the butt plate;   (d) a collar mounted within the adapter, the collar having an extending portion extending into the adapter toward the second surface;   wherein the serrated plate is operatively coupled to the collar's extending portion.   
     
     
         38 . The adjustable butt stock adapter assembly of  claim 37 , wherein the collar further comprises a spring connected to the serrated plate and providing a spring force to bias the serrated plate toward the collar, such that the serrated plate may be pulled away from the collar to overcome the spring force and allow adjustment of the rotational relationship between the adapter and the serrated plate. 
     
     
         39 . The adjustable butt stock adapter assembly of  claim 38 , wherein the rotationally adjustable engagement between the serrated plate and the adapter comprises a plurality of splines configured for adjustable engagement with a plurality of grooves. 
     
     
         40 . The adjustable butt stock adapter assembly of  claim 39 , wherein the vertically adjustable engagement between the serrated plate and the butt plate comprises a first plurality of serrations configured for adjustable engagement with second plurality of serrations.