Chassis for a modular firearm

Abstract

A modular firearm system that includes a chassis and a barrel locking block. The chassis has a receiving channel at a distal end of the chassis and one or more sidewalls extending from a bottom portion of the chassis at a proximal end of the chassis. An underside of the chassis has a bulge to accommodate a distal end of a slide release when the slide release is pivotably coupled to the chassis within the receiving channel. The barrel locking block is structured to fit within and be received by the receiving channel of the chassis.

I (or We) claim: 
     
         1 . A modular firearm system, comprising:
 a chassis having a receiving channel at a distal end of the chassis and one or more sidewalls extending from a bottom portion of the chassis at a proximal end of the chassis, an underside of the chassis having a bulge to accommodate a distal end of a slide release when the slide release is pivotably coupled to the chassis within the receiving channel; and   a barrel locking block structured to fit within and be received by the receiving channel of the chassis.   
     
     
         2 . The modular firearm system of  claim 1 , further comprising the slide release, the slide release being configured to be pivotably coupled to the chassis within the receiving channel and structured to pivot between a locked position and a released position. 
     
     
         3 . The modular firearm system of  claim 2 , the slide release including a slide-release spring at the distal end of the slide release, the slide-release spring configured to contact the chassis when the slide release is in the locked position, the slide-release spring configured to resist pivoting of the slide release from the locked position to the released position and from the released position to the locked position. 
     
     
         4 . The modular firearm system of  claim 1 , further comprising a locking-block pin configured to pass through the locking block and secure the locking block to the chassis. 
     
     
         5 . The modular firearm system of  claim 1 , further comprising a frame having a grip configured to be held by a hand of a user and a receiving chamber formed within the grip, the one or more sidewalls of the chassis structured to fit within and be received by the receiving chamber of the frame. 
     
     
         6 . The modular firearm system of  claim 5 , in which the chassis has a hollow portion configured to receive a trigger assembly, in which the frame has a hollow portion corresponding to the hollow portion of the chassis, and in which the trigger assembly is configured to be received in both the hollow portion of the frame and the hollow portion of the chassis when the chassis is received in the frame. 
     
     
         7 . The modular firearm system of  claim 6 , in which the frame further includes a trigger guard, and in which the trigger assembly is accessible through the trigger guard. 
     
     
         8 . The modular firearm system of  claim 5 , in which the chassis has a rearward extension extending from the proximal end of the chassis, the rearward extension being structured to align with and fit within a recess of the frame when the one or more sidewalls are received in the receiving chamber. 
     
     
         9 . The modular firearm system of  claim 5 , in which one or more apertures of the frame, one or more apertures of the chassis, and one or more apertures of the barrel locking block are aligned when the chassis is received in the receiving chamber of the frame and the barrel locking block is received in the receiving channel of the chassis, and in which the frame, the chassis, and the barrel locking block are mechanically secured via pins inserted through the one or more apertures of the frame, the one or more apertures of the chassis, and the one or more apertures of the barrel locking block. 
     
     
         10 . A modular firearm system, comprising:
 a chassis having a receiving channel at a distal end of the chassis, an underside of the chassis having a bulge;   a slide release pivotably coupled to the chassis within the receiving channel and structured to pivot between a locked position and a released position, in which the bulge of the chassis accommodates a distal end of the slide release when the slide release is in the locked position; and   a barrel locking block structured to fit within and be received by the receiving channel of the chassis.   
     
     
         11 . The modular firearm system of  claim 10 , the slide release further comprising a slide-release spring at the distal end of the slide release, the slide-release spring configured to contact the chassis when the slide release is in the locked position, the slide-release spring configured to resist pivoting of the slide release from the locked position to the released position and from the released position to the locked position. 
     
     
         12 . The modular firearm system of  claim 10 , further comprising a locking-block pin configured to pass through the locking block and secure the locking block to the chassis. 
     
     
         13 . The modular firearm system of  claim 10 , in which one or more apertures of the chassis and one or more apertures of the barrel locking block are aligned when the barrel locking block is received in the receiving channel of the chassis, and in which the chassis and the barrel locking block are mechanically secured via pins inserted through the one or more apertures of the chassis and the one or more apertures of the barrel locking block. 
     
     
         14 . A chassis for a modular firearm comprising:
 a receiving channel at a distal end of the chassis, the receiving channel structured to receive a barrel locking block within the receiving channel; and   a bulge on an underside of the chassis to accommodate a distal end of a slide release when the slide release is pivotably coupled to the chassis within the receiving channel.   
     
     
         15 . The chassis of  claim 14 , further comprising a hollow portion configured to receive a trigger assembly. 
     
     
         16 . The chassis of  claim 14 , further comprising one or more sidewalls extending from a bottom portion of the chassis at a proximal end of the chassis.