[blusteel]

What ultimately STOPS the foreward movement of the op rod / bolt assembly as it rushes back to battery ?
Is it actually the piston which then gets hammered into the end of the gas plug ? If so, seems like one whole hell a lot of chaos, peening punishment to the business end of the stick.

 

[blusteel]

......and is that why my plug is always loose ?

 

[30Cal]

If you use a GI combo tool, it's hard to put too much torque on that gas plug. Mine started loosening up pretty and I replaced it with a GI one and it hasn't happened since. Look closely; the GI plug has a raised diamond knurl.

Ty

 

[Cornbread2]

What ultimately STOPS the foreward movement of the op rod / bolt assembly as it rushes back to battery ?
Is it actually the piston which then gets hammered into the end of the gas plug ? .

Yes that is how it is supposed to work. And no it does not hurt anything.

Read this,

http://www.ambackforum.com/viewtopic.php?t=32141

 

[blusteel]

Thank's "30" & CB 2. Very sound info!