...issue (Thread title was truncated)
I read the TTAG article this morning:
SIG SAUER Introduces 16 Inch MPX (GEN II) - The Truth About Guns
...and decided to get some clarity, as I have a Gen 1 MPX and want to put a .40 cal upper on it. So, I talked to Tim in Sig's Customer Service Department. Here is what I learned:
1. They will offer both Gen 1 and Gen 2 9mm magazines and will specify which is which going forward, as Gen 2 magazines will indeed not work in Gen 1 guns.
2. The .40 cal Gen 2 upper will work on Gen 1 9mm lowers. The .40 cal Gen 2 magazine will work with the Gen 1 lower.
3. Sig will offer Gen 2 uppers to Gen 1 owners at a considerable discount.
4. We agreed that an upper swap is better for a caliber change, as the zero on sights and optics flies out the window during just a barrel/bolt change. We both thought that having a dedicated and separately mounted/zeroed optic for each upper was a better option.
5. We agreed that having a Gen 1 lower registered on a Form 1 was a significant reason for them to have Gen 2 uppers to be compatible with Gen 1 lowers.
I hope this helps someone somewhere.
Chase
I read the TTAG article this morning:
SIG SAUER Introduces 16 Inch MPX (GEN II) - The Truth About Guns
...and decided to get some clarity, as I have a Gen 1 MPX and want to put a .40 cal upper on it. So, I talked to Tim in Sig's Customer Service Department. Here is what I learned:
1. They will offer both Gen 1 and Gen 2 9mm magazines and will specify which is which going forward, as Gen 2 magazines will indeed not work in Gen 1 guns.
2. The .40 cal Gen 2 upper will work on Gen 1 9mm lowers. The .40 cal Gen 2 magazine will work with the Gen 1 lower.
3. Sig will offer Gen 2 uppers to Gen 1 owners at a considerable discount.
4. We agreed that an upper swap is better for a caliber change, as the zero on sights and optics flies out the window during just a barrel/bolt change. We both thought that having a dedicated and separately mounted/zeroed optic for each upper was a better option.
5. We agreed that having a Gen 1 lower registered on a Form 1 was a significant reason for them to have Gen 2 uppers to be compatible with Gen 1 lowers.
I hope this helps someone somewhere.
Chase