Originally designed and uploaded by - skosyrev on thingiverse -
https://www.thingiverse.com/skosyrev/designs

All credit goes to skosyrev for these designs.

All i have merely done is re-upload the content and ensure that if taken down it is backed up elsewhere.
as it seems cults and thingiverse seem to lean anti-gun.

To be honest, it might be wise of me to download all this content on this page and store it all in a safe location.

CONSIDER THESE UNTESTED ---
(For the time being....)

Now - granted these do mention that they are for "airsoft" but i would wager they will work for the real deal. i will test them for myself soon and will update this when it is done. - however, i should say - this is something that i would strongly recommend making from a glass filled nylon as of course barrels do tend to get quite hot.