g3 or sr25

Hey was up i want to get my first decent gun ive been airsofting for a lot with a cheap 40 dollar shotgun with a hicap now i i was thinkin i need a upgrade i was thinkin echo 1 g3 or a a&k sr25 Also thought about the l85 not sure who has it its not really a common gun in da us but still. i play in a large feild mainly trenches and high grass so i want a lot of range which do u think is better also open to other guns

Well it depends on if you think spending the extra $40 for a full metal gun is worth it. You could use that money to buy extra magazines or an optics mount...

They both seem like pretty nice guns although I haven't seen either one in game. I've been considering the JG or Echo 1 G3 for a while now, it always seemed nice in my opinion.

Or you might consider the Echo 1 G36K:
http://www.airsoftgi.com/product_info.php?products_id=3932

Well im getin it from airsoftpost they give 2 free extra mags woth each pirchase for the holy cow deal so thats no problem and i don't like scopes but is the only difference ones full metal? Also the g36 doesnt hqve the range

There's more differences than just metal-or-not, mainly being the manufacturer... But I can't name any significant differences between A&K and E1 other than the name and the amount of products they make.

Maybe someone else can help me out here.

Is the high fps gona shortens the guns lifespan

The A&K SR25 is horrible. Internals and external quality are both very bad. Echo1 guns, however, are very nice quality. I would recommend them.

I own the JG G3 SG1 T3K1 (winner of the unnecessarily long naming conventions contest), and it will stay with you until the day you die.
It was my first gun, and even though I've moved on, I still respect it.
It acts more like a support weapon because it's a big gun with a high rate of fire.