[FoxRacing46]

Recently purchased an original gen 1 m40 and have been looking into getting the barrel for .357 sig but the only ones I’ve found are for the A1 series and beyond. Are they universally compatible across all including the original models or am I simply out of luck?

 

[Case]

The Gen 1 there own. You can make a A1 Work but it wil take some fitting

 

[FoxRacing46]

The Gen 1 there own. You can make a A1 Work but it wil take some fitting

I’m guessing I would probably need to purchase the slide for an A1 to make the barrel fit?

 

[Case]

I would just keep the original 1st generation M model all as one an look about upgrading into 1 of the A1 or A2 guns .
By the time you find a parts gun or the upper assembly it would be cheaper just to buy the complete functioning pistol