Description Instructor Master Armorer John Bush History Model of 1918 US used the gun from WW I Viet Nam Still in use today by many countries Manufactured by Colt, Marlin Rockwell, and Winchester Military Manuals shown, differences between 1918 and 1918A2 mentioned As well as other countries manufacture and calibers  Design & Function World War II US Military Training Video shown-shows complete gas system operation, feeding/extraction/ejection cycle. Shows operation of the fire-control system as well as the difference in operation speed due to accelerator/sear system US Naval Training device used to show systems operation Operator ergonomic considerations discussed Mr Bush disassembles the gun to explain its operation Gas system operation and adjustment of gas port show Fire control system parts shown and operation explained Function of the actuator/accelerator system shown Disassembly Guns complete disassembly shown Parts that should NOT be disassembled shown and the reasons why How the various parts interact and why theyre designed the way they are Reassembly Complete reassembly shown and common errors to avoid. Tips to make the reassembly easier Function and safety checks shown after reassembly Ohio Ordnance Semi Auto A3 Differences between the A3 and full auto guns shown and discussed. Disassembly done to clearly show the differences Why this gun is semi auto only and why/how its designed to make modification to full auto extremely difficult Cleaning & Lubrication AGI cleaning & lubrication methods shown and the reasons for their use Reassembly of the Ohio Ordnance A3 Changes Ohio Ord made to make reassembly easier Maintenance and Care of the BAR Final Thoughts How to remove the extractor without taking the gun apart View a sample of the content of this course below. [youtube https://www.youtube.com/watch?v=AV1JjKMmh_0]