WELL NOW if he pinned and welded his supressor, then the added length of the suppressor will help him make his rifle at least 16" long. (do you really wanna do this?) Then you wouldn't have to do all time and paperwork for SBR'ing your AR.
I'd be concerned about timing when doing this. (like what Jon said) There's a lot of issues (including redoing a crown(like what Jon said)) that you'll run into.
A switchblock would only be useful if you were able to remove your supressor.
A JP adjustable gas block would work better for this situation.
Assumption is the mother of all ****ups.
Know what you know, Know what you don't know. -Paul Pedzolt
"Jack of all trades, master of none, though oftentimes better than master of one" -Mynshul
Last edited by AgentTikki; 03-02-2012 at 12:30 AM.