Modular buttstock assembly

Abstract

A modular buttstock assembly that removably mounts to a receiver extension of a firearm may include a main body and a rear body. The main body may have a passage that mates with the receiver extension, while the rear body may be removably coupled to the main body such that any number of swappable, modular rear bodies may be coupled to the main body. The main body may include a toggle assembly with a actuating lever coupled to an bowed or ached actuating spring. The toggle assembly may also include a locking block with a plurality of shafts that distribute the load from the receiver extension to the main body rather than concentrating mechanical stress on a single lock pin.

1 . (canceled) 
     
     
         2 . A modular buttstock assembly, comprising:
 a first buttstock body module that removably mounts to a receiver extension of a firearm at a first end of the first buttstock body module, the first buttstock body module including a toggle assembly that toggles the first buttstock body module between a locked position and an unlocked position with respect to the receiver extension, wherein the toggle assembly includes:
 an actuating spring, 
 an actuating lever that engages the actuating spring when the actuating lever is depressed, and 
 a locking member coupled to the actuating spring, wherein the locking member engages the receiver extension to produce the locked position when the actuating lever is not depressed and disengages the receiver extension to produce the unlocked position when the actuating lever is depressed; and 
   a second buttstock body module removably coupled to a second end of the first buttstock body module.   
     
     
         3 . The modular buttstock assembly of  claim 2 , wherein the actuating spring is made at least partially of a polymer. 
     
     
         4 . The modular buttstock assembly of  claim 2 , wherein the actuating spring is a bowed actuating spring. 
     
     
         5 . The modular buttstock assembly of  claim 4 , wherein the bowed actuating spring includes at least one hook-shaped region. 
     
     
         6 . The modular buttstock assembly of  claim 2 , wherein the locking member includes a plurality of shafts. 
     
     
         7 . The modular buttstock assembly of  claim 6 , wherein engaging the receiver extension to produce the locked position when the actuating lever is not depressed includes at least one of the plurality of shafts of the locking member passing through a void in the first buttstock body module. 
     
     
         8 . The modular buttstock assembly of  claim 7 , wherein engaging the receiver extension to produce the locked position when the actuating lever is not depressed includes at least one of the plurality of shafts of the locking member mating with a void disposed in the receiver extension. 
     
     
         9 . The modular buttstock assembly of  claim 6 , wherein engaging the receiver extension to produce the locked position when the actuating lever is not depressed includes at least three of the plurality of shafts of the locking member passing through a void in the first buttstock body module. 
     
     
         10 . The modular buttstock assembly of  claim 7 , wherein engaging the receiver extension to produce the locked position when the actuating lever is not depressed includes at least one of the plurality of shafts of the locking member mating with a void disposed in the receiver extension and at least two of the other shafts each abuttedly engaging an outer surface of the receiver extension. 
     
     
         11 . A modular buttstock system, the system comprising:
 a first buttstock body module that removably mounts to a receiver extension of a firearm at a first end of the first buttstock body module, the first buttstock body module including a toggle assembly that toggles the first buttstock body module between a locked position and an unlocked position with respect to the receiver extension, wherein the toggle assembly includes:
 a bowed actuating spring, 
 an actuating lever that engages the bowed actuating spring when the actuating lever is depressed, and 
 a locking member coupled to the bowed actuating spring, wherein the locking member engages the receiver extension to produce the locked position when the actuating lever is not depressed and disengages the receiver extension to produce the unlocked position when the actuating lever is depressed; 
   a second buttstock body module that removably couples to a second end of the first buttstock body module; and   a third buttstock body module that removably couples to the second end of the first buttstock body module when the second buttstock body module is not coupled to the second end, the third buttstock body module including an inner storage compartment.   
     
     
         12 . The modular buttstock system of  claim 11 , wherein the actuating spring is made at least partially of a polymer. 
     
     
         13 . The modular buttstock system of  claim 11 , wherein the actuating spring is a bowed actuating spring. 
     
     
         14 . The modular buttstock system of  claim 13 , wherein the bowed actuating spring includes at least one hook-shaped region. 
     
     
         15 . The modular buttstock system of  claim 11 , wherein the locking member includes a plurality of shafts. 
     
     
         16 . The modular buttstock system of  claim 15 , wherein engaging the receiver extension to produce the locked position when the actuating lever is not depressed includes at least one of the plurality of shafts of the locking member passing through a void in the first buttstock body module. 
     
     
         17 . The modular buttstock system of  claim 16 , wherein engaging the receiver extension to produce the locked position when the actuating lever is not depressed includes at least one of the plurality of shafts of the locking member mating with a void disposed in the receiver extension. 
     
     
         18 . The modular buttstock system of  claim 15 , wherein engaging the receiver extension to produce the locked position when the actuating lever is not depressed includes at least three of the plurality of shafts of the locking member passing through a void in the first buttstock body module. 
     
     
         19 . The modular buttstock system of  claim 16 , wherein engaging the receiver extension to produce the locked position when the actuating lever is not depressed includes at least one of the plurality of shafts of the locking member mating with a void disposed in the receiver extension and at least two of the other shafts each abuttedly engaging an outer surface of the receiver extension. 
     
     
         20 . The modular buttstock system of  claim 11 , wherein the inner storage compartment of the third buttstock body module is accessible by a hinged panel disposed at a rear surface of the third buttstock body module. 
     
     
         21 . The modular buttstock system of  claim 20 , wherein at least a portion of the hinged panel disposed at the rear surface of the third buttstock body module is covered by a buttpad.