Now I should let those of you know who are not familiar with airsoft sniper rifles a few things ahead of time.

1) Nearly everyone wants a sniper rifle upon getting into airsoft. I guess there is just a cool factor involved with it all, "one shot one kill" and all that. The truth is, it is expensive and the cost is unavoidable.
2) FPS is a crucial factor, your weapon should be at the very minimum at 1.5 joules using .25's. Without it you will not be able to get any sufficient range proper to a semi-auto weapon.
3) You will not find any sniper weapons that are ready to go out of the box. They will always have to be upgraded. Which can be costly.
4) Making an MP5 into a 450fps bb monster with a 3x9 illuminated scope and a PSG1 barrel is NOT a sniper rifle. If you need an AEG to snipe then don't bother.

This is a bolt-action system. Meaning simply that for every draw of the bolt an single round is loaded for firing. Considering how I have come to own this rifle I cannot comment on the stock performance in that respect. This is a gas bolt system. Meaning that the bolt itself is filled with Top Gas or 134a and that powers the round instead of a spring. This gives two advantages:

1) Power
2) No need to fight back an upgraded spring when drawing the bolt.

In fact, though it still has a spring in the bolt, it is very easy to remain in firing position and continually draw back the bolt and fire. A great advantage in the field.

First off is the obvious, the gas bolt. It is made by Classic Army specifically for the M24. It can also be used in the APS2 as well. Gas is filled in the nozzle in the drawn position. Secondly there is the Harris bipod. Keep mind this is a used gun so it could be in better condition but it functions nicely. Giving about 10" to 14" of height. Lastly is the scope, it has a built in weaver rail for easy mounting. It has 4 notches for the mounts. The scope is a Tasco 3x7x40, mounted on sight thru rings. This allows for easy access wearing a full mask.

Bolts: There are both spring and gas bolts made for upgrades. Only Classic Army makes a gas bolt, but both Classic Army and PDI make spring system upgrades. The downside of these being the increase in tension and force required to draw bolt. Both manufacturers also make trigger system upgrades. I would definitely recommend this.

1.) The internal pin of the gas intake snapping in two.
2.) The seals on the intake valve not properly sealing.
3.) Loosing bearings that are inside the bolt assembly.
4.) Fixing threads stripped in the outer barrel.
5.) Trigger pull from Hell!

It has been an interesting task, road testing and using this rifle. Before it has even hit the field no less. First off my initial test firing went very well. With green gas we were looking at about 550fps with a poor man chrono. Then on our next test firing we could not fill the tank. The intake pin literally broke. This problem was soon fixed by cannibalizing a spare Maruzen MP5k mag. Testing continued. It shoots beautifully and reliably, but with a slightly heavy trigger pull. Once gas charge gives you enough for one clip. Then we went to test it on another occasion. Gas leaked out the intake valve faster than bbs from a newbie with a vulcan mini-gun! I decided then and there that enough was enough.

I purchased a Classic Army reinforced steel bolt with 300% PDI spring. Well this solved my issues with shot reliability. While installing the new bolt, I discovered the tiny little bearings used for making the bolt swivel up and down. I immediately lost one due to complete surprise of finding loose unsealed bearings. Then while putting the rifle back together I found the threads were stripped on one of the outer barrel holes. Well I fixed that part with an epoxy based thread repair kit. I wound up replacing the missing bearings with replacements from a hardware store.

Upon test firing it was more difficult draw the bolt. You definitely need to PULL the bolt. You can stay in firing position with practice. Muzzle velocity is between 450 and 500. Just fine for drifting between different fields with different limits and skirmishes.

One thing that needs to be noted. This rifle has a very, very heavy trigger pull with the 300% spring. You need to tape the trigger or sand the square edges to avoid blisters. With that in mind you can enjoy this rifle for what it is, a heavy, powerful precision rifle.

Well since this gun has been through 2 different owners and is still in one piece, I would say it is reasonably durable. The stock is very heavy and solid. Almost all the hardware is metal, except the magazine which is plastic. Even the adjustable stock is well built. It allows for 5 inches of length adjustment on the stock.

Well the majority of the gun can be literally replaced. Every internal is also made by PDI (who ironically made the first revision of this rifle after Classic Army screwed up the the initial release). So naturally you can spend an extreme amount of money juicing this puppy up. New trigger sets are made by both PDI and CA and there is also the "Zero-Trigger" set. Bolt handles are also available. Since the springs are PDI you can easily switch out the stock spring. I personally recommend changing the entire bolt assembly for this though. CA and PDI also make these as well. No major cosmetic accessories, but this is a bolt action rifle, not a beauty contest. Bipods are available by the truckload. And any real steel cheek rests and slings / swivels are obvious choices (I choose composite swivels for noise factor issues).

Do not buy the gas bolt. It is too delicate and if you go through more than one mag a game you are slave to what gas you can carry with you. Look at a Tanaka for a gas rifle solution. If you are going to its power, look at whole bolt replacements. Not just springs. The newly added stress can break stock parts.

On that note, enjoy. This is a nice rifle I would definitely recommend.