http://thecmp.org/training-tech/armorers-corner/gas-cylinder/
So it seems like some is normal and at least a tiny amount of front to back is necessary to keep heat expansion from throwing off point of aim.
Mine seems to have maybe 1mm or front to back play (gas lock is tight about the 1 o’clock position and then has to be rotated back just over half a turn to insert the gas plug).
It also seems to have maybe 1 degree of rotation side to side (maybe not that much, maybe half a degree) and the gas cylinder is easy to take on and off.
Reading the above article it seems like that is all pretty standard. However it would be better for less play for better accurizing.
Thoughts/suggestions? Get some extra locks and see if one times better to make it tighter? Peen the splines for a tighter fit? I am a little more concerned about the rotational play. It seems like it is enough to throw point of impact off a couple of inches.
Only took me 3 times to get the reassembly correct
PS or is my better bet just getting it to the range and seeing how it shoots?
So it seems like some is normal and at least a tiny amount of front to back is necessary to keep heat expansion from throwing off point of aim.
Mine seems to have maybe 1mm or front to back play (gas lock is tight about the 1 o’clock position and then has to be rotated back just over half a turn to insert the gas plug).
It also seems to have maybe 1 degree of rotation side to side (maybe not that much, maybe half a degree) and the gas cylinder is easy to take on and off.
Reading the above article it seems like that is all pretty standard. However it would be better for less play for better accurizing.
Thoughts/suggestions? Get some extra locks and see if one times better to make it tighter? Peen the splines for a tighter fit? I am a little more concerned about the rotational play. It seems like it is enough to throw point of impact off a couple of inches.
Only took me 3 times to get the reassembly correct
PS or is my better bet just getting it to the range and seeing how it shoots?