after waiting for 14 days i received my new precihole nx100 polaris rf(rust free) carbin version yesterday.
i brought it from http://www.10kya.com for rs 14660/-(going to get 15% cash back),i really like this site.i brought SP50 RF taurus before from this site.
now about the gun,
LOOKS:-
i added a 4x28 scope on the gun.
the gun looks cool
,when compared to my old IHP 35.i brought this camo butt version.i think this is the most costly product from precihole.i'm attaching the pics of my new gun along with old IHP35.
FEEL:-
feel of the gun is so good,i really like it.
Performance:-
as you guys know,polaris is a 0.177 caliber gun.
i did not check any groupings yet.i fired like 100 shot till now,shots are powerful and accurate too.
but the cocking force is very much,i.e i put lot of effort in cocking the gun,like twice the effort than IHP35.may be because of the gun is new.but even after 100+ shots still same.it's too hard to cock.IHP 35(replaced with precihole spring) is much easy to cock.
i like the auto safety feature
on the gun but trigger is also hard 
(not too hard),i know it's adjustable.now about that fancy cocking aid:-
yes,it is helpful in cocking the gun,without coking aid,it's very hard to cock as the barrel is short when compared to long barrel version.
do not buy karbin version if you are not going to mount a scope,coz when you want to mount cocking aid,you have to remove front site.if you don't remove front site,it's hard to cock,that you will feel it as punishment.
you guys might think i'm week,but i'm not that week
.i can lift and throw 40kgs with single hand and 60 kgs easily with both hands.i really like the gun for now,but we will see how it will perform in the future.
i will update this thread after 10days,when i complete shooting my 500 pellet tin.
i will also be doing a video review on SP50 taurus,nx100 polaris and IHP35.
thank you guys.these are my views on nx100 polaris,if something is wrong please forgive me.
most impotent is,trigger is very nice now.i felt it's harder than IHP35 earlier, but now ihp35 trigger feels harder and not that crisp as nx. 
.
