M4S-System Disassembly Guide Part One
This guide is for the disassembly of the TM S-System and removal of
the one piece barel. 
Step 1: Remove Side rails from the S-System. Then undo the screw
underneath the rail. There is one on each side.
Step 2: Pop the two pins out of the lower handguard and the lower
section can be seperated from the upper.
Step 3: Flip the gun over and remove the four screws shown in the
picture.
Step 4: Unscrew this set screw(red) and note the postiion of the
wire retainer(blue).
Step 5: Remove all the screw highlighted in the picture.
Step 6: Slide the top half of the S-System off as shown.
Step 7: Remove the screw that holds the rear SIR bracket.
Step 8: Once the rear bracket is off it will reveal another set
screw. Slide the delta ring out of the way and remove the set screw.
Step 10: Barrel is now free from the upper receiver and can be
pulled out.
NEXT - PART 2
