Step 3: Pistols
Sidearms: best to buy one of these first. You'll probably need one. (unless you have more mags and your gun doesn't jam ever.).
beretta m92- Probably a good one to start with, you can get a 190 fps full metal spring one for about £17. The AEP (auto electric pistol) ones are around £20-£30 and are plastic, as for gas I havent a clue.
glock 17/18/21- A popular gun, spring ones are very cheap and plastic (that said, the cyma ones are brilliant.) £5-£15. The AEP ones are £20 (ABS plastic) to £60 (metal)
desert eagle- generally not too good for a beginner due to it's stupidly large size, spring is about £5 (wont last a 4 weeks) -£20 (decent ABS plastic). AEP tend to be £25 (ABS) -£60 (metal)
colt pocket- a small pistol that makes a good backup, spring is £8-£20, gas is £20-£50
walther ppk- medium sized, generally good all rounder, spring is £1-£60, AEP £25-£200
pistol uzi- good for those who want a bit more ammo, though harder to cock than a conventional pistol. spring is £5-£20, AEP is £20-£300
usp- another overlooked all rounder, usually comes with a suppressor. spring is £20-£30, AEG £30-£400, gas £100-£500
Revolvers- best not to buy, low ammo cap, hard to reload ect. Although they are very scary looking and realistic (loads with shells with a bb in each) best for more experienced players as they can set you back £20-£100.
Mini series- reduced sized guns, can't be taken too seriously, but make no mistake they are just as good as having an smg. AEP £20-£30