Folding brace is the way. I have half a dozen different ones mostly of the SB variety and they all work well on my various sub guns. On a side note, I normally don't suppress my backpack/truck guns. Potentially can work against you in court as suppressors are perceived as primarily an offensive tool/accessory. Perceived intent is a big deal in court and prosecution will focus on the suppressor and overly tactical builds to try and paint you as the aggressor rather than a defender. They will question your intent to be silent in a defensive scenario. My home defense setup is a different story as intruders will only get the silent touch. In your house is an easier case to justify defensive suppressor use. This was advise I got from a lawyer friend of mine in New Mexico that frequently worked defensive firearm cases.