Bullpup conversion device

Abstract

The present invention is a bullpup conversion device. A forward clamp assembly includes a lock bar and a forward clamp. The forward clamp has a barrel hole and a lock bar hole. A rifle barrel extends through the barrel hole while the lock bar extends through the lock bar hole. An upper housing plate is connected to a lower housing plate. A linkage tube is located at least partially between the lower and upper housing plates, and at least partially between the lower housing plate and the forward clamp. A trigger assembly extends from the linkage tube and through the lower housing plate. A linkage rod extends at least partially through the linkage tube and is connected to the trigger assembly. A trigger actuator assembly connects the linkage rod to a rifle trigger. A trigger grip is connected to the lower housing plate and located proximally of the trigger assembly.

What is claimed is: 
     
         1 . A bullpup conversion device, comprising:
 a forward clamp assembly comprising a lock bar and a forward clamp, said forward clamp having a barrel hole and a lock bar hole, wherein a rifle barrel extends through said barrel hole and said lock bar extends through said lock bar hole;   an upper housing plate connected to a lower housing plate;   a linkage tube, wherein said linkage tube is located at least partially between said lower housing plate and said upper housing plate, and at least partially between said lower housing plate and said forward clamp;   a trigger assembly extending from said linkage tube and through said lower housing plate;   a linkage rod extending at least partially through said linkage tube and connected to said trigger assembly;   a trigger actuator assembly connecting said linkage rod to a rifle trigger; and   a trigger grip connected to said lower housing plate and located proximally of said trigger assembly.   
     
     
         2 . The device of  claim 1 , wherein said trigger assembly comprises a tubular trigger cradle located within said linkage tube, a trigger extending from said trigger cradle and through said lower housing plate, and a safety located within said trigger. 
     
     
         3 . The device of  claim 2 , wherein said safety is connected to said trigger by a safety pivot pin, wherein a safety return spring biases said safety to a rest position. 
     
     
         4 . The device of  claim 2 , wherein a proximal end of said trigger cradle has a female threading and a distal end of said linkage rod connected to said trigger cradle has a male threading. 
     
     
         5 . The device of  claim 1 , wherein said trigger actuator assembly comprises a plurality of trigger guards surrounding a rifle trigger, a trigger actuator connected on a first side to said linkage rod and extending through said plurality of trigger guards. 
     
     
         6 . The device of  claim 5 , wherein said first side of said trigger actuator has a greater height dimension than a height dimension of a second side of said trigger actuator. 
     
     
         7 . The device of  claim 5 , said trigger actuator assembly further comprising an actuator bolt and washer assembly connected to said trigger actuator on a second side. 
     
     
         8 . The device of  claim 1 , further comprising a linkage return spring between said an exterior surface of said linkage rod and an interior surface of said linkage tube. 
     
     
         9 . The device of  claim 1 , wherein said trigger grip comprises a shooting accessory aperture. 
     
     
         10 . The device of  claim 1 , said upper housing plate further comprising an adjustable gas block relief hole connected to a rifle gas block. 
     
     
         11 . The device of  claim 10 , said upper housing plate further comprising an adjustable gas block wheel connected to said gas block relief hole. 
     
     
         12 . The device of  claim 1 , further comprising a sling swivel holder having a male threading, wherein said sling swivel holder is removably connected to a female threading of said lock bar. 
     
     
         13 . The device of  claim 1 , further comprising a closing plug having a male threading, wherein said closing plug is removably connected to a female threading of said lock bar. 
     
     
         14 . The device of  claim 1 , further comprising a laser adapter having a male threading, wherein said laser adapter is removably connected to a female threading of said lock bar. 
     
     
         15 . The device of  claim 1 , wherein said linkage tube further comprises a linkage plate pinhole, wherein said lower housing plate further comprises a plate locator pinhole, wherein a plate locator pin extends between said linkage plate pinhole and said plate locator pinhole. 
     
     
         16 . The device of  claim 1 , wherein said linkage tube further comprises an linkage trigger pinhole, wherein said trigger assembly further comprises a trigger locator pinhole, wherein a trigger locator pin extends between said assembly pinhole and said linkage pinhole. 
     
     
         17 . The device of  claim 1 , wherein said barrel hole has a plurality of diameters, wherein at least one diameter is different from at least one other diameter. 
     
     
         18 . The device of  claim 1 , wherein a distal end of said linkage tube extends beyond a distal end of said lower housing plate. 
     
     
         19 . The device of  claim 1 , further comprising a variable forward grip assembly having a forward grip removably connected to a grip assembly tube, said grip assembly tube having a tube plug, wherein a barrel clamp connects said grip assembly tube to said linkage tube. 
     
     
         20 . The device of  claim 1 , wherein said linkage rod comprises two parallel segments connected by a perpendicular segment.