The Glock Manufacturer Part Number (aka SKU) is more useful for figuring out the configuration of a gun. My friend Pat Richards, aka 58Sniper created an amazing resource for interpreting the sku numbers https://glockcollector.info/2019/01/11/product-number-breakdown/
Searching for the UPC numbers, I found the MPN - UPC: 764503036866 MPN: UI4350701
U= US
I= Fixed or Adj sight (further defined later)
43= Model
5= 5.5lb trigger
0= Standard Pistol
7= Glock Night Sights - this is why this pistol costs more
0= Standard Options
1= 10rds or smaller mags/white label
764503002533 = PI4350201
P= Austria
I= Fixed or Adj sight (further defined later)
43= Model
5= 5.5lb trigger
0= Standard Pistol
2= Fixed - these are the standard polymer sights
0= Standard Options
1= 10rds or smaller mags/white label
764503913358 = UI4350201
Same as above except made in US
What you are missing is UI4350202 which is the Blue Label sku - if you are not familiar with Glock’s blue label program, it is for law enforcement but members of GSSF receive a coupon each year of membership for the purchase of a gun from the blue label program. For example - the G43 GSSF price is $380
www.GSSF.pro
So it looks like the price difference you have seen is due to night sights vs standard sights. The Blue Label price difference is due to a special program.
Hope this helps!
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