Express Action Sports

get him a Spyder or a Tippmann if he likes speedball that get the Spyder if he likes rec ball which he’ll probally like better get him a tippmann.
References :
Actionvillage.com

You said that you just got a new gun, so if you have a working old one, give him that one. If not then buy a cheap spyder.
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your best bet is probally a spyder, however if u do get one, i gurantee you will want a different one in 3 months or less.

but any way, the best spyder you can find for that price is the spyder pilot acs.
http://www.actionvillage.com/is-bin/INTERSHOP.enfinity/eCS/Store/en/-/USD/DisplayProductInformation-Start;sid=9G6Az6syrdSBZ-zzWPpAZ6HmUS41EyqD97s=?ProductID=L83AqArbbkYAAAEDASTO1WtJ

here are the statistics:

Product Description
Features:

CAMD 2nd generation (color access mode display)
Sensi-touch straight trigger w/multi-adjustment points for enhanced rapid firing
ACS (anti-chop system) delrin bolt – The revolutionary anti-chop system is the world’s first true anti-chop bolt. The ACS bolt delivers the same results as expensive markers with eyes. The ACS precision spring tension recognizes obstructions before crushing balls and jamming the marker, so the action never stops
Reactive response trigger, up to 20 shots/second
Semi, 3 rnd burst, 6 rnd burst, and full auto firing modes
Sleek, custom design receiver
Special ACS edition body engraving
Double ball detent
12" aluminum barrel
Expansion chamber with foregrip
Tournament lock switch
Top cocking bolt
Vertical ball feed
Improved style drop forward
Adjustable trigger pull
2 finger trigger with regulation trigger guard
Low pressure chamber
Bottom-line setup with stainless steel hose
Quick disconnect pin
Adjustable rate of fire
External recharge port
Battery power indicator
Operates on c02 or compressed air
Includes:

Java 9.6 volt rechargeable battery (recharge up to 700 times)
Battery charger
spare parts kit
Elbow
Warranty: This gun is under a 1 year manufacturers warranty. Kingman can be reached at 1-888-KINGMAN.

if you cant find what you are looking for, then save some more money and buy a trilogy autococker. i have one , it was my first one and i still love it.

this one comes in a package.

http://www.dickssportinggoods.com/sm-buy-the-wgp-autococker-trilogy-sport-ready-to-play-paintball–pi-2906580.html

but if you dont want a package, here is another great autococker
http://www.actionvillage.com/is-bin/INTERSHOP.enfinity/eCS/Store/en/-/USD/DisplayProductInformation-Start;sid=5msMZ5A7kpIM09f6SxTMz5rv2FhTb1MnIdA=?ProductID=6NHAqArb9xgAAAEDW7k7W_ZJ

p.s. autocockers are considered the most accurate markers
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i hope i helped, please choose me as best answer!

Get him a tippmann custom 98 i think they are $130 but this gun will last him a good while until he is ready to move up. I had one and i dropped it in mud on rocks went weeks without oiling it. They are tough and plus u can buy stocks and rails and whatever u want to make it look nice
References :
experience

I agree with the previous post. The Tippmann Custom 98 would fit someone perfect. It is a little bit more but has everything you need. Check below I found one for you. I hope this helps.
References :
http://www.paintball-store.info/shop.php?c=paint2&n=3415571&i=B0010ZXGZA&x=Paintball_Tippmann_Custom_98_with_Mask_and_Tank