Samurai

If you want to actually hit what you are aiming for, use heavier BBs. At least 0.25 or 0.28+ if your gun can handle it. I usually set the target at 40m. First thing is to set the hopup. Don't use the sights, just look down the barrel to check the trajectory. People usually prefer one of the two: set the hopup to get the flattest trajectory with no raise in it. This is the most predictable trajectory. I prefer the other way, a little bit of raise in it at the last part. This gives the most range. Something like the difference between the green and the black graph. (Yeah, I know it is an other graph, it's just for the shape of it.) If you are happy with the trajectory, set your sights to the impact point on the target. First set the iron sights (horizontal, then vertical), then the red dot or optics if you use one. After you are done with that, spend a lot of time on different distances too. Learn how much you have to aim below or above the target on certain distances. If your hopup is fine, you don't really need to touch it again, except if you buy an other brand of BBs, or the temperature/humidity changes significantly. Check before every game if everything is still ok. Usually you don't have to touch the sights, just the hopup to get the same trajectory as you set the first time.

Seal Patrol (original title is Blackjacks). The story is not that great but the tactics and the tactical movements of the actors are absolutely amazing. Better than the Act of Valor with real seals in it.

Decide between wood / aluminum. Get the gun's measurements. Find a place to get the foam from. Find some diy projects on the net with the chosen material, and start creating it.

If you are asking about the Imax B6 then it can do much more. It can charge and discharge lipo, life, li-ion, nimh, nicd, pb batteries. Also you can set the amps you want to charge/discharge with. You also can run cycles of charging, discharging, and monitor the voltages/amps during the process. You can charge some types to store level. You can balance, and with an additional sensor you can stop on overheat of the battery. And then some. But as far as an average airsofter is concerned, a simple balance charger like a B3 is perfectly enough for a lipo. You plug it in, and it charges the battery for the next game.

Absolutely not, sorry. Don't go for a sniper gun as a beginner if you ever want to go to a skirmish. You'll have much disappointment playing with them. Get an AEG (G&G has one of the best beginner kits), play with it at least a year and then consider a sniper gun. Apart from that I often read that shops that have bbguns in their name are not the places to buy from.

An Imax B3 is enough. It does everything an average airsofter needs with the lipo. There are two problems with the alarm: It discharges the battery by itself. A friend of mine forgot about it and it killed the lipo (and he was glad that it didn't burn down the house). And when you fire the gun, the voltage drops significantly for that moment. The nominal charge is still way above the alarm level, and the battery could handle the drop for a moment but with each shot the alarm sounds. Alarms are designed for continuous drain, and not for the pulse-like drains airsoft guns have.

A very decent lipo is £14 and a charger is £5.5 inc. postage. Alarm is just causing more trouble than it helps with.

Yes.

As far as I know if the external barrel wobbles, you don't need to take the upper and lower apart. http://tech.airsoftcanada.com/TM/TM%20-%20M16A2/m16a2.gif But if you want to, this shows how to get it open: http://tech.airsoftcanada.com/TM/TM%20-%20M16A2/m16a2_techmanual2%5B1%5D.jpg

I wouldn't stand around at 1000 yards that bravely.

IMHO don't bother with it. I won't give you any benefit compared to a good hopup rubber even if you can make it perfect. And it is extremely hard to make it any good.

As Hibernator said. It will simply break your gearbox. Cheap way to discharge is to get any 12v bulb (ie. anything from a car or motorbike) and connect that. When its light fades from bright to "it's getting empty" then you've discharged the battery. If you keep the bulb on it until it goes dark, by then the battery is dead and should be disposed of. So it's not a very smart solution. Keep an eye on it.

Usually disappointed because we spent more time in the safe zone between games, than playing airsoft... :/

If the DMR is 400 fps or lower but you have 20-30 meters of minimum engage distance, then there is no point in getting one, simply use an AEG and make it perfect. On the site I've been a few times here, 98% of ppl have decent looking gun and absolutely cr*p useful engagement distance. Mostly because they use 0.20g BBs and don't spend time to set the hopup. If you are a sniper, you already know you must spend a few hours just to set the hopup and the sights. Use quality heavy BB too, and mostly single shots. I do use my gun this way and consider myself a dmr (even though I use just a red dot - you can perfectly see to 50-60 meters) and not having a minimum engagement distance is a huge advantage to actual DMRs. Between 350 and 400 fps there is absolutely no noticeable difference if your gun is set up right.

Don't buy nimh anymore. Lipo is better in every aspect. Size, capacity, discharge rate, price.

Usually all my stuff came fine from them. That mean about 20+ orders. But when china suddenly stopped lipos in airmail, it took almost a year for them to send it. The shipping got more expensive and I didn't want to pay more for them for it, then finally they re-sent it through Fiji for some reason and that got lost too. It took many-many emails and at the end some harsh words from me until finally I got what I paid for. They are not helpful and very slow on complaints.

The Desert Eagle is ridiculously big. Decide only after you have already held both of them. As far as I know the extended mag is only available for the glock.

As far as I remember - and it's been years I've taken apart a KA M4 - the pins are locked, so you can't push them all the way through, but they stop right before falling out. They are retained by a tiny spring loaded ball that is held in place by a tiny allen screw. To take out the gearbox you must remove the rear pin. Maybe this retaining mechanism is screwed in too tight so it won't allow the rear pin to move. Look for a tiny hole on the other side as the picture near and perpendicular to the pin.

I use a simple Tasco 4x40 scope on my sniper gun, very similar to what you've linked and it's very-very good. And cheap. I had a 4x32 but it was a bit small for my taste.

Yeh, can be fun. But it needs some expensive equipment.

Pull the charging handle a bit.

Then sniping may not be your thing.

In our airsoft society you have to earn being called elite, or special, or things like that or people will just mock you about it. People like me.

Gun is cool. Grippod is horrid.

As a Colonel? Sorry, it's way too elite ninja specops for me.