Don't waste your time dude.
Just because a gun is designated as a sniper rifle doesn't give it immediate advantages over an AEG.
Think of it this way. A stock Bolt action will shoot almost exactly as a stock AEG will.
AEG's are more accurate in the sense of 'Accuracy through volume.'
With a bolt action, you're left with a single shot. You'll be left at a complete disadvantage.
Another note : The two rifles you listed are genuine potmetal china shit, a waste of money. If you want to take up a sniper role, your only real option is to buy quality platforms such as a Tokyo Marui VSR-10 (TM, no clone.) or an actual Maruzen or Classic Army APS-2 system.
There is no real way around it, and in finality you will be paying out of your ass to get the gun shooting right.
Buy an AEG.
Also, I figure I might as well just answer your questions.
Pro and cons on both
Pro's : None.
Cons : They're shit.
Which is better out the box
Neither, they're shit.
Which has a better upgrade selection
From what I understand, they're both 'Maruzen' clones in a sense, but being trashy china pot metal clone guns any actual use of upgrades will be fustrating. They won't fit in properly, and to even get a mild effect you're looking into replacing 90% of the gun.
So in short, Neither. They're shit.
And anything anyone wants to add tips and such
Last edited by Strelok; March 9th, 2011 at 22:00..