New order for my p90

On a budget.

Problems:

1. Dropping gun.
ANSWER Get a sling.
Mount: http://www.airsoftgi.com/product_info.php?products_id=3963
Sling: http://www.airsoftgi.com/product_info.php?products_id=4700

2. Running out of ammo, bad magazine pouch.

Mags: http://www.airsoftgi.com/product_info.php?products_id=4669

Pouch: http://www.airsoftgi.com/product_info.php?cPath=28_101_295&products_id=2535

3. Not getting accuracy off the gun.

Tightbore: http://www.airsoftgi.com/product_info.php?cPath=31_55&products_id=5842

New BB's x2: http://www.airsoftgi.com/product_info.php?cPath=27_44_193&products_id=2445

Oh forgot to say tell me if this is a good idea.

Looks good, man. Very direct in here is your problem, here is your solution. You've put some real thought into this purchase. And if you're anything like me, replacing your barrel should be fun and easy.

Just one thing: does your P90 have an adjustable hop-up? That's the only thing I can think of that could go wrong. If you don't have an adjustable hop-up, you'll need to try to find the right weight BBs for that gun, but if it's adjustable then no worries.

Another good one for accuracy might be a laser or red dot sight on top of that tightbore.

I've got a red dot because I can't aim out of it with my mask on. It's also got a hopup. What about the sling idea

If you've got a vest that can accommodate that kind of sling, go for it. That looks way more comfortable than anything you wear around your neck. It looks like if you have any sort of loops or straps on your shoulders, you should at least be able to pull the entire bungee around the shoulder strap and hook it to itself, so really any kind of vest should accommodate that. Or if you don't have a vest, you could just hook the sides together and put it around your neck. It's good to have options.

Could it fit around my waist? because I don't have a vest and don't need one.

Even a clothing vest would work, you'd just loop each end with the clip through the neck hole and out the arm hole and clip it to its cord. If not, I would just clip the two ends to each other and just put it around your neck, or your neck and one arm, whatever's more comfortable.

It'll also give you the option eventually, when you play more hardcore, to attach it to a vest, which is a very lucrative option, being much more comfortable than having all the weight on your neck/shoulders when you're not holding your gun.

Edit: forgot to mention, I wouldn't put it around your waist, it'll just bump into your legs and cause undue pain. In general, slings are fairly adaptable, so you can usually find some position that works fairly well. Having your gun in front of you, or at your side is generally good tactically, but makes it difficult to run unless you hold your gun while you're running. Having it on your back makes it easier to run and do other things, but it takes a while to get it off your back, unlike in Halo or CoD where you can just switch weapons in a second.

I think your telling me how to use the sling with a vest? I don't have one, my question, will the sling work without a vest?

Yeah, I was just trying to point out it would be more comfortable with a vest, but it'll work fine on its own. I just needed to realize that my version of "good enough" isn't necessarily everyone's version of "good enough", and I think for you, it will work best to loop it around your neck and dominant arm (I'll assume right arm). That will have it hanging under your right arm, where you can just pick it up and shoot, which will be very helpful in combat.