Firearm bolt

Abstract

Described herein is an improved firearm bolt, and methods of making same, having a larger diameter bold head coupled to a smaller diameter bolt body used with a feed ramp and improved extractor geometry to enable firing of intermediate firearms cartridges.

What is claimed is: 
     
         1 . A firearm bolt system comprising:
 at least one firearm bolt comprising at least two lugs with at least one web located between the at least two lugs;   at least one feed ramp;   at least one barrel extension configured to engage with the at least one feed ramp; and   the at least one firearm bolt configured to have a bolt geometry that lacks angled corners on at least the at least two lugs but is instead configured to possess curves at least on the at least two lugs to avoid a stress concentration within the firearm bolt system.   
     
     
         2 . The firearm bolt system of  claim 1 , wherein the at least one firearm bolt has a minimum web thickness of 0.093 inches between the at least two lugs. 
     
     
         3 . The firearm bolt system of  claim 1 , wherein the at least one firearm bolt cooperates with intermediate cartridges selected from the group of 6 ARC, .450 bushmaster, .458 SOCOM, .50 Beowulf, and .350 legend. 
     
     
         4 . The firearm bolt system of  claim 1 , wherein the at least one feed ramp is configured to be interchangeable and removably affixed to at least one upper receiver. 
     
     
         5 . The firearm bolt system of  claim 1 , wherein a first feed ramp and a second feed ramp are configured to be different sizes with respect to one another. 
     
     
         6 . The firearm bolt system of  claim 1 , wherein a first feed ramp and a second feed ramp are configured to be different shapes with respect to one another. 
     
     
         7 . The firearm bolt system of  claim 1 , wherein the bolt geometry defines a radius of at least 0.070 inches between the at least two lugs. 
     
     
         8 . The firearm bolt system of  claim 1 , wherein a load bearing surface of the at least one firearm bolt has a load being surface area of at least 0.074 inches. 
     
     
         9 . The firearm bolt system of  claim 1 , wherein at least two extractor spring orifices are defined in the at least one firearm bolt. 
     
     
         10 . The firearm bolt system of  claim 1 , wherein a cam pin insertion hole is defined in the at least one firearm bolt and counter bored. 
     
     
         11 . A method for making a firearm bolt system comprising:
 forming a firearm bolt from a single billet;   forming the at least one firearm bolt to define at least two lugs with at least one web located between the at least two lugs;   forming at least one feed ramp and at least one barrel extension, wherein the at least one feed ramp and at least one barrel extension are configured to engage with one another;   configuring the at least one firearm bolt to have a bolt geometry that lacks angled corners on at least the at least two lugs but is instead configured to possess curves on the at least two lugs and the at least one web located between the at least two lugs to avoid at least one stress concentration on the firearm bolt system.   
     
     
         12 . The method for making a firearm bolt system of  claim 11 , further comprising configuring the at least one firearm bolt with a minimum web thickness of 0.093 inches between the at least two lugs. 
     
     
         13 . The method for making a firearm bolt system of  claim 11 , further comprising configuring the at least one firearm bolt to cooperate with intermediate cartridges selected from the group of 6 ARC, .450 bushmaster, .458 SOCOM, .50 Beowulf, and .350 legend. 
     
     
         14 . The method for making a firearm bolt system of  claim 11 , further comprising configuring the at least one feed ramp to be interchangeable and removably affixed to at least one upper receiver. 
     
     
         15 . The method for making a firearm bolt system of  claim 11 , further comprising configuring a first feed ramp and a second feed ramp to define different sizes with respect to one another. 
     
     
         16 . The method for making a firearm bolt system of  claim 11 , further comprising configuring a first feed ramp and a second feed ramp to define different shapes with respect to one another. 
     
     
         17 . The method for making a firearm bolt system of  claim 11 , further comprising configuring the bolt geometry to define a radius of at least 0.070 inches between the at least two lugs. 
     
     
         18 . The method for making a firearm bolt system of  claim 11 , further comprising configuring a load bearing surface of the at least one firearm bolt to define a load being surface area of at least 0.074 inches. 
     
     
         19 . The method for making a firearm bolt system of  claim 11 , further comprising defining at least two extractor spring orifices in the at least one firearm bolt. 
     
     
         20 . The method for making a firearm bolt system of  claim 11 , further comprising defining a cam pin insertion hole in the at least one firearm bolt and configuring the camp pin insertion hold as counter bored.