Hi again
Like others avoid GBBRs for first timers because
- yes they are cool
- yes it feels and operates like a real gun
- yes it sounds and feels waaaaay cooler when you shoot it
However you must consider
- It will weigh the same or almost the same as a real gun
- The mags are heavier normally and you have to carry this, Vector mags could be used to bludgeon people if you wanted to
- The mags are normally more expensive
- They normally have the same capacity as the real thing, you will feel a bit miffed when shooting 1 or 2 shots at people and they are able to practically piss shots at you all day with their 450 hi cap maracas
- Gas will start to become expensive even if you buy propane in bulk and HPA'ing the gun can be a hassle (he initial set up will be)
- You have to maintain it almost like a real gun cleaning it after a days of use, AEGs you can get away with a few game days or even a year if your sloppy or lazy
- They can get temperamental in the winter
- First shot to last shot consistency is never the same, a decent AEG will keep its FPS at 330FPS +/- 10 say from fist shot to the 400th shot, as GBBR will often have 330FPS first shot down to 300FPS on the last shot as the gas in the mag expires
- Cheapo crappy clone scopes/RDS et al may not hold zero on GBBRs due to the recoil, model and brand dependant.
Now while it seems im slating GBBRs rest assured i'm not, i owned a KWA Kriss Vector, upgraded the hell out of it, had about 8 mags, even had some rare parts and loved shooting it, did i ever field it? Hell NO! My Polarstar M4 did far better in terms of rate of fire, shot to shot consistency, range, weight of the gun and the mags.
That said i did buy a APS CAM 870 Shell ejecting shotgun (can be impractical as hell) which i use soley for CQB and i am toying with the idea of getting an AK 47 (or alike, AK 101 tingles my fancy) GBBR and that's going against two things of mine, 1 its a GBBR and 2 its an AK but still
Like everyone has said avoid shops with "BB" in the title as they usually specialise in cheap sub £100 two tone plastic shite barely able to keep up with a G&G Combat Machine.
I'd avoid WE, their stuff can be hit and miss at times, in my experience very much a miss, mate of mine bought a WE SCAR L - only worked a few times, I had a WE M92FS - always thought a pistol should do better, got a TM M92FS and realised yes they can.
Like said if your set on getting a GBBR then fine but aim for an AK or M4 GHK, if you dont mind an electric but want the recoil feeling then get a TM Recoil gun if you dont mind the plastic receivers, trust me your arms will love you for the plastic and its pretty good stuff and you soon forget that its plastic.
Most people chose AKs or M4s as they are easy platforms to start with in terms of upgrading, spares, parts and cheaper to run on the whole due to the vast majority of things available to them.
Dont do what i did when i got my first gun at JustBBGuns having been convinced by Jambwow and bought a full metal G&G M14 EBR-S, thought i was the greatest thing ever but then realised that it weighed a ton, mags were pricey, that mags had to be G&G ones. I sold it within a year and got the G&G TR4-18 short in Tan.
The one you have chosen:
http://www.patrolbase.co.uk/airsoft-m4-m15-m16-variants/g-g-gt-advanced-418-electric-blowback-aeg-black.htm#.WHApqhuLRhF
Is G&G's take on a H&K 416 M4 style rifle, it costs so much because its part of the top of the line range, made of full metal and has the pneumatic blowback action which is cool, i had one in tan last year and it was one of my finest AEGs able to fire 341FPS +/- 2 (yes the deviation was that small) using .20g BBs and had a ROF of 24RPS, upgraded the hell out of it to shoot like that and keep the blowback action. After many year of service it died, dunno why, couldn't be arsed to fix it and sold it, bought a new G&P and Polarstarred it.
However if your looking to spend £550 on an AEG then ill point you in the direction of a Krytac CRB, check Airsoft Zone as well they have good prices and are a legit Airsoft shop, websites dog slow but if you can get to Romford in London they will be happy to help, they dont lie to make a sale either.