Later L1A1 tech (workshop) documentation

[Bruce_in_Oz]

Do any old "gun-plumbers have the "late-issue" data for the L1A1 gas-port diameter and the "instruction about boring it out a few "number" sizes to keep the old girls chugging along until the various 5.56 replacements came on line. I am certain it was an approved practice / official instruction in that short time, . Some seem to doubt the existence of such an instruction, so I am throwing it open to the "Council of Elders".

I can find notes for several other "life-extension" instructions. Some personal notes may have been "misplaced" during several moves. Who knows

These other "instructions" included using a special "zinc-based" paste to better seal the gas-cylinder tube, , spot -welding the "riveting of various catch / latch assemblies, inserting "reinforcement "gussets" in the front of the trigger mech housing. Relieving the timber of the butt at the top of the wrist to reduce the chance of splitting. .

Probably other stuff i have forgotten.