Modular firearm handguard with integrated mounting system

Abstract

A firearm foregrip comprising: a lower section hingably attached to an upper section; an attachment arm carried by the lower section with an arm open position and an arm closed position, wherein the attachment arm is adapted to be received within a frame of a firearm securing the lower section to the frame when the attachment arm is in the arm open position; and a barrel clamp, connected to the lower section, with a clamp open position and a clamp closed position, wherein the barrel clamp is adapted to receive a barrel of the firearm and secure the lower section to the barrel when the barrel clamp is in the clamp closed position. The foregrip may include a heat shield, multiple attachment rails, and a second attachment arm. The barrel clamp may comprise multiple clamp assemblies to securely attach the foregrip to the firearm barrel.

1 . A firearm foregrip comprising:
 a lower section hingably attached to an upper section;   an attachment arm carried by the lower section with an arm open position and an arm closed position, wherein the attachment arm is adapted to be received within a frame of a firearm securing the lower section to the frame when the attachment arm is in the arm open position; and   a barrel clamp, connected to the lower section, with a clamp open position and a clamp closed position, wherein the barrel clamp is adapted to receive a barrel of the firearm and secure the lower section to the barrel when the barrel clamp is in the clamp closed position.   
     
     
         2 . The firearm foregrip of  claim 1 , wherein the attachment arm is biased open by a spring connected to the attachment arm. 
     
     
         3 . The firearm foregrip of  claim 1 , wherein the attachment arm can be held in the arm open position by a set screw carried by the lower section. 
     
     
         4 . The firearm foregrip of  claim 1 , further comprising a second attachment arm carried by the lower section, wherein the second attachment arm is adaptable to be received within the frame of the firearm securing the lower section to the frame when the attachment arm and the second attachment arm are in the arm open position. 
     
     
         5 . The firearm foregrip of  claim 1 , wherein:
 the barrel clamp is a first barrel clamp; and   the firearm foregrip further comprises a second barrel clamp in line with the first barrel clamp and carried by the lower section, wherein the second barrel clamp is adapted to straddle the barrel of the firearm and secure the lower section to the barrel.   
     
     
         6 . The firearm foregrip of  claim 1 , wherein the lower section has an attachment rail adapted to receive accessories selected from the group consisting of sights, scopes, lights, hand grips, bipods, sling mounts, lasers, grenade launchers, hand stops and any combination thereof. 
     
     
         7 . The firearm foregrip of  claim 1 , wherein the upper section has an attachment rail. 
     
     
         8 . The firearm foregrip of  claim 7 , wherein a portion of the attachment rail extends beyond the lower section. 
     
     
         9 . The firearm foregrip of  claim 1 , further comprising a heat shield carried by the upper section and disposed between the barrel or a gas tube and the upper section. 
     
     
         10 . A firearm foregrip comprising:
 a lower section of the foregrip disposed below a barrel of a firearm;   an upper section of the foregrip disposed above the barrel wherein the upper section is hingably attached to the lower section;   an attachment arm carried by the lower section adapted to secure the lower section to a frame of the firearm; and   a barrel clamp connected to the lower section adapted to secure the lower section to the barrel.   
     
     
         11 . The firearm foregrip of  claim 10 , further comprising a heat shield secured between the upper section and the barrel. 
     
     
         12 . The firearm foregrip of  claim 11 , wherein the heat shield is secured to the upper section using one or more fasteners. 
     
     
         13 . The firearm foregrip of  claim 10 , wherein the attachment arm includes an closed position and an open position wherein in the open position the lower section can be secured to the frame. 
     
     
         14 . The firearm foregrip of  claim 13 , wherein the open position includes rotating the attachment arm about a pivot point carried by the lower section. 
     
     
         15 . The firearm foregrip of  claim 14 , includes a set screw adapted to securing the attachment arm in the open position. 
     
     
         16 . The firearm foregrip of  claim 10 , wherein the barrel clamp legs includes an open position and a closed position wherein transitioning from the open position to the closed position secures the lower section to the barrel. 
     
     
         17 . A firearm comprising:
 a receiver;   a barrel carried from the receiver; and   a foregrip attached to the receiver and the barre;:   a lower section included in the foregrip hingably attached to an upper section included in the foregrip;   an attachment arm carried by the lower section and engaging the receiver; and   a barrel clamp connected to the lower section adapted to secure the lower section to the barrel.   
     
     
         18 . The firearm of  claim 17 , wherein the attachment arm is biased in an open position by a spring connected to the attachment arm. 
     
     
         19 . The firearm of  claim 18 , wherein the attachment arm can be secured in the open position by a set screw carried by the lower section. 
     
     
         20 . The firearm of  claim 19 , further comprising a heat shield carried by the upper section and disposed between the barrel and the upper section, wherein the heat shield is secured to the upper section using one or more fasteners.