Modular firearm and components thereof

Abstract

Present embodiments relate to a modular firearm. More specifically but without limitation, present embodiments relate to a modular firearm, for example semi-automatic rifle, with various modules that provide differing functions to a semi-automatic or automatic rifle. Some of the functions include, but are not limited to, connector for ambidextrous stock folding, interchangeable magwell for changing of firearm caliber, a barrel module with evacuation chamber, and ambidextrous charging handle.

1 . A connector for a folding stock or brace, comprising:
 a first body having:   a channel configured to receive a rail of preselected size;   a set screw which extends from exterior to said channel to within said channel, said set screw configured to engage said rail;   a second body having:   a biasing mechanism within said second body;   an actuator which is biased by said biasing mechanism to bias said actuator to a first position of two positions;   a hinge having a first hinge portion on the first body and a second hinge portion on the second body;   wherein said connector can be installed in a first orientation to allow opening in one direction, and in a second orientation to allow opening in a second direction.   
     
     
         2 . The connector of  claim 1 , said actuator being a button. 
     
     
         3 . The connector of  claim 2 , said button protruding from an end surface of said second body. 
     
     
         4 . The connector of  claim 1 , said first body capable of connection to a firearm. 
     
     
         5 . The connector of  claim 1 , said second body capable of connection to a stock or a brace. 
     
     
         6 . The connector of  claim 1 , further comprising at least one locking post extending from said first body. 
     
     
         7 . The connector of  claim 6 , said second body having an aperture which receives said at least one locking post. 
     
     
         8 . The connector of  claim 7 , said actuator engaging said at least one locking post. 
     
     
         9 . An interchangeable magwell for a rifle, comprising:
 an upper receiver;   said interchangeable magwell having an upper end which engages said upper receiver, a lower end capable of receiving a magazine, a first end and a second end;   said interchangeable magwell having a hollow body;   a tongue and groove attachment mechanism disposed at said upper end of said interchangeable magwell;   wherein said interchangeable magwell is removable from said upper receiver without use of tools.   
     
     
         10 . The interchangeable magwell of  claim 9  said tongue being tapered between said first end and said second end. 
     
     
         11 . The interchangeable magwell of  claim 9 , said groove is tapered between said first end and said second end. 
     
     
         12 . The interchangeable magwell of  claim 9 , further comprising a connector at said first end or said second end capable of connection with fire control housing. 
     
     
         13 . The interchangeable magwell of  claim 9 , at least one inner wall of said magwell being angled up to about 4 degrees from vertical. 
     
     
         14 . A rifle barrel, comprising:
 a body having a first end and a second end;   a bore extending through said body between the first end and the second end;   an attachment defining an evacuation chamber;   a passage extending between the bore and the evacuation chamber;   said evacuation chamber drawing gas out of said bore.   
     
     
         15 . A rifle barrel, comprising:
 a body having a first end and second end;
 said first end defining a chamber and said second end defining a muzzle; 
   said body having a larger diameter in at least one location which tapers to a smaller diameter defining a taper lock;   a threaded section spaced from said smaller diameter of said body;   a bore extending through said body from said first end to said second end;   a passage extending from the bore to an outer surface of said body;
 an attachment having a first attachment end and a second attachment end, wherein one end of said first attachment end or said second attachment end engages said taper lock and the other of said first attachment end or said second attachment end threadably engages said threaded section; and, 
 an evacuation chamber defined between said attachment and said body, an outlet end of said passage disposed within said evacuation chamber. 
   
     
     
         16 . The rifle barrel of  claim 15 , said bore having rifling. 
     
     
         17 . The rifle barrel of  claim 15 , said passage being angled. 
     
     
         18 . The rifle barrel of  claim 17 , said passage being angled toward said first end. 
     
     
         19 . A charging handle, comprising:
 a linear body configured to be positioned above a bolt carrier group, said linear body having a first end and a second end;   a handle receiver disposed near one of said first end and said second end of said linear body, said handle receiver extending from each of two sides of said linear body;   a handle that is removably connected to said handle receiver, said handle having a first portion that is pivotally connected to a second portion, wherein said first portion may be pivoted from a first position to a second position to slide said handle and said linear body together;   said handle being removable from one side of said two sides of said handle receiver and reversibly position on a second side of said two sides of said handle receiver.   
     
     
         20 . The charging handle of  claim 19 , said handle being moveable from said first position parallel to said linear body, to said second position that is perpendicular to said linear body. 
     
     
         21 . The charging handle of  claim 19 , further comprising a button which is depressed to remove said charging handle. 
     
     
         22 . The charging handle of  claim 19 , further comprising dovetail tongue formed in said handle receiver. 
     
     
         23 . The charging handle of  claim 22 , a dovetail groove receiving said dovetail tongue of said second portion of said handle receiver. 
     
     
         24 . The charging handle of  claim 19 , said first portion of said handle having one or more finger tabs.