The answer is yes....and no. By performing a barrel swap to the 357 sig barrel the gun is capable of shooting the 357 sig round. However, the 357 sig has a much higher barrel pressure (5000-10000 more psi). While the gun can shoot the 357 sig round simply by changing the barrel, this will cause more wear than is normal and can possible damage the slide. The safe bet is to buy a slide and barrel meant for the 357 sig round.
Check on line auctions, gun shops, gun shows and pawn shops.
I am trying to make a deal with a coworker who says his 4006 came as a dual caliber gun .40 cal and .357 mag. I know the gun cannot be .357 mag so it must be a .357 sig. I have not yet seen the .357 barrel. I do know that Bar-Sto makes a .357 sig barrel as I just read the article on reloading .357 sig. Search google for 4006*.357 sig.
Yes and no. The. 40 S&W is not interchangeable with the .357 Magnum, if that's what you had in mind. Most .357 Sig pistols can, however, but a .40 barrel will have to be dropped in in place of the .357 Sig barrel.
The gun is worth around $200 to $500 based on the condition of the gun
50-100 USD
100-200
The company is out of business. The gun could be worth 200 to 300 dollars depending on the condition of the gun.
50-5000 uSD
50-100 USD
@ 100 USD
it depends on many things