Spacer for grip adjustment of firearm

Abstract

A spacer assembly configured for mounting between a pistol grip and a lower receiver of a weapon. The spacer assembly includes an indexer and a spacer. The indexer is configured to shift a position of the pistol grip when mounted to the lower receiver via the indexer. The shifted position of the pistol grip shifts the pistol grip rearward away from a trigger of the lower receiver a distance, such that a trigger indexing is selected for a user. The spacer is configured to couple to the indexer to provide for a smooth transition between the pistol grip and the lower receiver. The indexer includes an upper portion configured to mount to a pistol grip attachment point of the lower receiver. The indexer also includes a lower portion configured to receive the pistol grip. The lower portion mimics the pistol grip attachment point of the lower receiver.

1 . A spacer assembly configured for mounting between a pistol grip and a lower receiver of a weapon, the spacer assembly comprising:
 an indexer configured to shift a position of the pistol grip when mounted to the lower receiver via the indexer, wherein the indexer is configured to shift the position of the pistol grip rearward away from a trigger of the lower receiver a distance, such that a trigger indexing is adjusted for a user; and   a spacer configured to couple to the indexer to provide for a smooth transition between the pistol grip and the lower receiver;   wherein the indexer comprises an upper portion configured to mount to a pistol grip attachment point of the lower receiver; and   wherein the indexer further comprises a lower portion configured to receive the pistol grip, and wherein the lower portion mimics the pistol grip attachment point of the lower receiver.   
     
     
         2 . The spacer assembly of  claim 1  further comprising a thumb rest secured to a side of the indexer. 
     
     
         3 . The spacer assembly of  claim 2 , wherein the thumb rest is configured with one of a plurality of angles with respect to the indexer and further configured with a selected length, width, and thickness. 
     
     
         4 . The spacer assembly of  claim 1 , wherein the indexer is configured to shift the pistol grip a selected distance rearward to provide a selected trigger indexing for a selected hand size and/or selected hand physical dimension. 
     
     
         5 . The spacer assembly of  claim 1 , wherein the spacer is further configured in one of a plurality of different thicknesses and shapes, and wherein a particular thickness and shape is selected to provide a particular ergonomic fit between the pistol grip and lower receiver for a selected hand size and/or selected hand physical dimension. 
     
     
         6 . The spacer assembly of  claim 5 , wherein the spacer comprises a concave outer surface on a side opposite the trigger. 
     
     
         7 . The spacer assembly of  claim 1 , wherein the indexer is formed of at least one of aluminum and reinforced polymeric material, and wherein the spacer is formed of at least one of aluminum and reinforced polymeric material. 
     
     
         8 . The spacer assembly of  claim 1 , wherein the spacer is coupled to the indexer via an attachment feature on an underside of the spacer, and wherein the attachment feature is configured to couple to the indexer on the upper portion of the indexer. 
     
     
         9 . The spacer assembly of  claim 8  wherein the attachment feature is configured to be at least partially inserted into an opening on the upper portion of the indexer. 
     
     
         10 . The spacer assembly of  claim 8 , wherein the attachment feature is at least one prong that is configured to friction fit in at least one opening on the upper portion of the indexer. 
     
     
         11 . A method for adjusting a position of a pistol grip coupled to a lower receiver of a weapon with respect to a trigger of the lower receiver, wherein the method comprises:
 removing the pistol grip from the lower receiver of the weapon;   installing a spacer assembly to the lower receiver, wherein the spacer assembly comprises an indexer and a spacer;   wherein the indexer is configured to shift a position of the pistol grip when mounted to the lower receiver via the indexer;   wherein the spacer is coupled to the indexer to provide for a smooth transition between the pistol grip and the lower receiver;   wherein the indexer comprises an upper portion configured to mount to a pistol grip attachment point of the lower receiver, wherein the indexer further comprises a lower portion configured to receive the pistol grip, and wherein the lower portion mimics the pistol grip attachment point of the lower receiver; and   mounting the pistol grip to the lower portion of the indexer, wherein a shifted position of the pistol grip shifts the pistol grip rearward away from the trigger of the lower receiver a distance, such that a trigger indexing is selected for a user.   
     
     
         12 . The method of  claim 11  further comprising installing a thumb rest on the indexer by securing the thumb rest to a side of the indexer. 
     
     
         13 . The method of  claim 12 , wherein the thumb rest is positioned at one of a plurality of angles with respect to the indexer, and wherein the thumb rest comprises a selected length, width, and thickness. 
     
     
         14 . The method of  claim 11 , wherein the indexer is configured to shift the pistol grip a selected distance rearward to provide a selected trigger indexing for a selected hand size and/or selected hand physical dimension. 
     
     
         15 . The method of  claim 11 , wherein the spacer is further configured in one of a plurality of different thicknesses and shapes, wherein a particular thickness and shape is selected to provide a particular ergonomic fit between the pistol grip and the lower receiver for a selected hand size and/or selected hand physical dimension, and wherein the spacer comprises a concave outer surface on a side opposite the trigger. 
     
     
         16 . The method of  claim 11  further comprising forming the indexer of at least one of aluminum and reinforced polymeric material. 
     
     
         17 . The method of  claim 11  further comprising forming the spacer of at least one of aluminum and reinforced polymeric material. 
     
     
         18 . The method of  claim 11  further comprising coupling the spacer to the indexer via an attachment feature on an underside of the spacer, wherein the attachment feature couples to the indexer on the upper portion of the indexer. 
     
     
         19 . The method of  claim 18 , wherein the attachment feature at least partially inserts into an opening on the upper portion of the indexer. 
     
     
         20 . The method of  claim 19 , wherein the attachment feature is at least one prong that is configured to friction fit in at least one opening on the upper portion of the indexer.