paint it, cover with tape to avoid giving away your position blah blah blah
for parts/upgrades:
http://www.airsoftsniperparts.com/identifyyourrifle.htm
http://www.airsoftsniperparts.com/apps/webstore/products/category/764410?page=1
depending on what "BB guns" site you bought from and what she is shooting at
would suggest using heavier bb's eg: 0.30gms upwards on 425/450fps
(you have one shot so try to ensure it ain't blown off course so much)
if she is over 330 - 350fps you have a Min Engagement Distance or MED
you can't shoot anybody unless they are aprox 30metres away
anything under that you have to use secondary/pistol or pray/retreat
MED's may vary but aprox 25/30metres for sniping
failure to abide by the site's guidelines will see you warned/banned
soz if you was already aware of this but site will explain and usually ask you to confirm what 30m looks like
This is very important to abide by to avoid being warned/banned or lit up by a lot of pi$$ed players
cheaper snipers are usually ok to get your feet wet, to get them shooting really well and maintain accuracy
will require a few upgrades at some stage
cheap AEG's are not ok though, often cheap "BB site" AEG's will be shooting under 300
& under 250 is not uncommon on usual 0.20gms bb's, plus these will be firing at under 10 rounds/sec
vivid orange that screams come and get me especially in camo woodland and pi$$ poor range too
at an absolute scrape the crappy 2-tone aeg's they sell could kind of be ok-ish at CQB sites
(close engagement, semi in most places so crappy gun might scrape by but still at a disadvantage though)
but yeah 2-tone especially vivid orange is a real giveaway out in the woods
no you shouldn't get laughed at - or not too much coz most of us started out that way
if you can tone down/paint/cover it it should help extend you playtime a bit
just anybody who ain't so cammo/stealthy kitted out, don't keep following the more stealthy/cammo'd players
(unless you enjoy being told where to go as vivid orange really draws attention to you)
play safe, apply common sense, listen to marshals and experienced players/teamates etc....
mag out/clear gun at safe zone, good eye pro & in general: don't be a dick and you will be fine