About 30 extra pounds. 

How do you like the 320 so far?Sig P320 Carry in 9mm in a Desantis speed scabbard. ...and, as always, an extra 17 round mag.
Just took my son to school,have my bodyguard 380 iwb holster now watching Jimmy swaggert.....380 stays iwb even in my house!around tax time will be purchasing a m&p shied either in 9mm or .40 haven't decided yet
. I don't know if this would help with Sciatica but, I use a Belly Band when my Back hurts. It holds the 442 prity good. My Pajamas stay up better also.442 with one strip in flannel pajama pocket. Usually a belt gun of some type, but am out of work with sciatica which precludes belt carry of anything close to substantial. I guess I should buy a J-frame belt holster....
Maybe even a Hi Point (GASP!) 4095TS (or 995TS) Carbine. Why doesn't S&W make a pistol caliber carbine?