dex

As above, theres a small hole in the top of the cylinder that feeds a small amount of air into a piston that moves the bolt cover when you fire. In reality its little more than a gimmick - a bit of extra noise when you fire.

TM recoil if you can get one. Otherwise Lonex M4.

Figs 2 and 3 are basically the same, 3 has less excess wiring involved, thus is optimal.

Drop leg ammo rig maybe?

- A new brand - A decent, responsive (eg it looks good on a phone) website, which is highly searchable - Up to date stock counts - Request re-stock emails - Fast shipping, reasonably priced (free shipping for over £X ?) I would also second the thoughts above that you are going to need a hell of a lot of work and money to make this work, you up against a lot of established competition in a niche market. Good luck.

As above. Lonex a2,decent gears (lonex, shs), mosfet, lipo. Job done.

Take it back. The worst that can happen is they tell you to take a walk in which case you buy a new buffer tube which aren't expensive.

Prometheus inner barrel and hop rubber for the recoil scar.

Good way for the inexperienced to knacker a gearbox too.

http://www.helmetworld.co.uk/lonex-m4-186-c.asp These are the only m4 AEG that I would touch. Note that externals are oem by vfc. So that's vfc externals with lonex internals. Doesn't get any better.

Lonex M4 = win.

Haha. Just leave your dignity at the safe zone. I think its more of a question of why the hell you would want to rather than could you? It's airsoft not LARP.

If you need some extra load carrying, why not consider some kind of battle belt and some addition molle pouches/holster?

Send it to zero one, they will put you on the DB for free.

Its worth noting that theres little point in having a flat hop nub with a firefly bucking. These are designed to go into flat hop / r hop setups. Won't hurt it I'm sure, but not really necessary.

As above, if you are considering using 11.1 lipos, get a mosfet installed. Don't use plug and play ones, they are purely for features such as 3 round burst etc. Also, use Deans connectors, I have no idea why they don't come as standard on AEGs.

TM all day long.

Pic:

A TM recoil scar l cqc.

M4 frankengun - made out of parts I had lying about - G&P receiver and stock, generic RIS, barrel, silencer, Lonex internals. Painted in a ATACS FG style.

Lowa Mountain Goretex.

Bottom line is its a game.

I use motorcycle brake cleaner.

As above, I wouldn't run 11.1 lipos on a stock gun. The top techs have very good internals and are decently shimmed out the box but there is a question mark over the stock mosfet that comes in the gen 3s as to whether it will handle high current batteries over time (I swapped mine out for a Gate mosfet, reshimmed etc so I could run 11.1s). 9.9 LiFe are a good middle ground between 11.1 and 7.4. Component shop do some crane stock versions (I run these in another M4), you may want to consider them.

Any of the G&G top techs that fit the bill would be a good bet: http://proairsoftsupplies.co.uk/acatalog/m4_and_m14_variants.html