What have you found to be the best way to hold your AK-47 parts together? I have seen all of these methods used (well, maybe not Super Glue
), but would like to know from your personal experiences what fastening method seems to work best. 
For me, I'm combining a Romanian National Guard kit with some kind of underfolder, a Yugoslavian pistol grip, a mix of Bulgarian and Chinese handguards, and a SKS sling.Weld it, it pisses off the purists.
yup, and I use a Harbor Freight step drill (the little fat one) to do 1/4" ish holes/bowls and do a plug weld by starting in the middle and rosette out.weld it in these spots:
weld it in these spots:Plug welds. Drill all the holes out larger - I use one of the fawesome harbor freight unibits to open them up to around 1/4" or so. I don't edge/stitch/lap weld anything on the gun, except for two tack in the magwell and at the front edge of the rear trunion.