I know some of you might be grumbling about posting Bushmaster stuff, but the reality of the matter is that a ton of companies out there issue the Bushmaster AR to their folks. You might get lucky, and get a Colt issued, but for the most part, it is Bushmasters for everyone(cost is attractive to the companies out there).
If you are really lucky, you might actually work for a company that will hook you up with a LWRC, Lewis Machine and Tool, or HK. I personally own a Bushmaster, and it does the job I need it for at home(training and plinking). It is not my dream weapon, but cost is an issue for me. Well, back to the topic.
This is a cool little upgrade for your Bushmaster. It is a new product, and the concept is interesting and this is the trend of today’s AR evolution. So if you cannot afford a POF, LWRC, or an HK piston upper for your system, you could buy this thing.
As for benefits, this thing runs cooler and will require less maintenance. And I believe you could operate it, after it was dunked in water, which is the benefit of a piston type system like this. But like I said, this product is too new, to really give it a thumbs up or down. I will look forward to the second and third generations of this thing, and for the price to go down in the future. I believe these kits will flood the market, and the technology will certainly be refined over time.
I have heard that a shock absorbing type buffer system might be a nice deal to have with these set ups. I guess these kits add just a little bit more kick to your system. An upgraded buffer is not necessary, but if you like a really light recoil, that might be the route to go.
As far as it fitting under your preferred rail system, I couldn’t say for sure. I have heard of guys modifying rail systems, so these things fit. So far, it looks like this system will fit under just plain handguards. I am sure there are companies that are looking at this issue, and will be offering a modified rail system, so these fit. The best thing to do, is just call Bushmaster or the company that made your rail, and ask them for suggestions. -Head Jundi
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Gas Piston Retrofit Conversion Kit
Now you can easily retrofit your AR15 / M4 Type Carbine to add the reliability, ease of maintenance, cooler running, and consistent function of the Gas Piston Operating System that has for years been so successfully used on AKs / FALs, and others. The Bushmaster Gas-Piston Retrofit Conversion Kit is a Patent Pending, short stroke piston conversion system that includes all the necessary parts to convert your gas impingement type carbine. Once installed, there are no more broken gas rings, droopy gas tubes or hot gases vented into the Receivers of your weapon. Instead, gases are vented under the hand guard, and away from the operator. The high performance Bolt Carrier features increased mass, an integral impact lug and specially designed anti-wear features to protect your receiver. The Bushmaster Gas-Piston Retrofit Conversion Kit is readily installed into your factory Upper Receiver Assembly without permanent modifications to your carbine. You keep your factory receivers, barrel and bolt. The result is a cleaner and more reliable system sure to enhance the overall performance and reliability of your weapon.
Price: $399.95
Part No: GP-GSR
http://www.bushmaster.com/products.asp?cat=6#GP-GSR
