Once you concert the hop chamber to non-standard m700, i.e. Vsr/aeg, you only use the air seal piece in the bolt of the G&G rubber set.
To remove the bolt, you remove the stock from the receiver to expose the trigger mech. Once you've done so, there is a small black bar that you will see right in front of the trigger itself on the bottom of the mech. Press it, hold t, and remove the bolt. It will slide right out.
To remove the bolt, you remove the stock from the receiver to expose the trigger mech. Once you've done so, there is a small black bar that you will see right in front of the trigger itself on the bottom of the mech. Press it, hold t, and remove the bolt. It will slide right out.