Foregrip for a firearm

Abstract

A foregrip for a firearm barrel includes a forward portion configured to face toward an open end of the barrel, a rear portion opposing the forward portion, and a curvilinear contact portion extending from the forward portion to the rear portion. The curvilinear contact portion includes a convex portion relative to the barrel and a concave portion relative to the barrel.

1 . A foregrip for a firearm barrel, comprising:
 a forward portion configured to face toward an open end of the barrel;   a rear portion opposing the forward portion; and   a curvilinear contact portion extending from the forward portion to the rear portion, the curvilinear contact portion comprising a convex portion relative to the barrel and a concave portion relative to the barrel.   
     
     
         2 . The foregrip of  claim 1 , wherein the forward portion comprises the concave portion and the rear portion comprises the convex portion. 
     
     
         3 . The foregrip of  claim 1 , wherein the rear portion comprises the concave portion and the forward portion comprises the convex portion. 
     
     
         4 . The foregrip of  claim 1 , wherein the foregrip is configured to be mounted on an attachment rail. 
     
     
         5 . The foregrip of  claim 4 , further comprising a dovetail-shaped slot positioned on an upper portion of the foregrip and extending along an axis of the barrel, configured to register with the attachment rail. 
     
     
         6 . The foregrip of  claim 4 , further comprising a first piece configured to engage a lateral side and a bottom surface of the attachment rail, and a second piece configured to engage the opposing lateral side of the rail. 
     
     
         7 . The foregrip of  claim 1 , wherein the foregrip is configured to be mounted on a side of the firearm barrel. 
     
     
         8 . The foregrip of  claim 1 , wherein the curvilinear contact portion further comprises a lateral side of the foregrip. 
     
     
         9 . The foregrip of  claim 1 , further comprising a locking feature configured to maintain the foregrip in a selected position relative to an attachment rail on the firearm barrel. 
     
     
         10 . The foregrip of  claim 9 , wherein the locking feature comprises a screw and a nut, the screw sized and configured to extend between lateral sides of the foregrip, with a shaft of the screw being sized to be received between slots of the attachment rail. 
     
     
         11 . The foregrip of  claim 10 , wherein the nut is interference-fit into a recessed cavity formed in the side of the foregrip. 
     
     
         12 . The foregrip of  claim 1 , wherein the foregrip defines a through-passageway transverse to an axis of the barrel. 
     
     
         13 . The foregrip of  claim 12 , wherein the through-passageway extends into an upper portion of the foregrip. 
     
     
         14 . The foregrip of  claim 13 , wherein the through-passageway is a slot. 
     
     
         15 . A foregrip for a firearm barrel, comprising:
 a forward portion configured to face toward an open end of the barrel;   a rear portion opposing the forward portion;   a curvilinear contact portion extending from the forward portion to the rear portion, the curvilinear contact portion comprising a convex portion relative to the barrel and a concave portion relative to the barrel;   wherein the foregrip defines one or more slots formed into an upper portion thereof, the slots extending transverse to a barrel axis from a right side of the foregrip to a left side.   
     
     
         16 . The foregrip of  claim 15 , wherein a lower portion of the foregrip further defines a through-cavity oriented transverse to the barrel axis. 
     
     
         17 . The foregrip of  claim 16 , wherein a bottom surface of the through-cavity follows the contour of the curvilinear contact portion. 
     
     
         18 . The foregrip of  claim 16 , wherein an upper surface of the through-cavity is flat. 
     
     
         19 . The foregrip of  claim 15 , further comprising a plurality of raised ribs extending transversely across the curvilinear contact portion. 
     
     
         20 . The foregrip of  claim 19 , wherein the ribs are semi-circular in cross-section, having a radius of approximately 0.030 inches.