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.
Bob (verified owner) –
This is a super video! Lots of very interesting information on how it works and specific techniques given on how to take apart this amazing and complicated rifle. Very clear instruction and the video details were well done. The differences presented for the OOW version are very helpful also. I recommend this highly if you have the need to work on the BAR.