I am brand new to the forum here , and found it trying to identify my new gun .

The serial #'s , match between the gun and the box it came in .

Box Sez : 226X5-40-AR , Stainless , DA/S , manufactured 28-FEB-2011 ,
with spare magazine 17-rds

Gun sez: P 226 S DE

............The operating and Instruction Manual has pictures of a wood gripped , jet funneled magazine tube ,
as well as describing adjustments for trigger weight,trigger stop, and trigger finger lengths .
In the box are 2 small allen wrenches and the gun has the tiny hole in front of the trigger guard for adjustments

my confusion comes from :

1) the magazines that came with the gun are not 17 rd ; they are 12 rd, and the sales tag from the shop where I bought it say 14 rd. ?

2) on their web site , Sig sez of the four X5 sub-models ; the All Around doesn't have an adjustable trigger ??

So , @ 1600$ - I just want to sleep better .

Am I wrong in thinking the significantly more expensive "Competition" and "L" versions of the X5 are higher priced because of the trigger adjustment features ?
Am I wrong to think that the danged gun should say " X5" somewhere on it ?
And whats with the comments on the Sig/SAUER website that the X5 Series of P226's are for Competition Shooting ONLY ? I can't plink with it ?

Thanks guys in advance for any info you might give