WE "Open Bolt System" Complete Conversion Kit for WE M4 Airsoft GBB Rifle

"I bought this kit to replace the work out and broken pieces of my current M4. Not only do the parts fit flawlessly, the gun runs even better than i have ever seen from it. The weapon cycles smoothly and shot placement is consistent from about 500 feet away using .25 grams. This conversion kit is perfect for those looking to upgrade their old guns or as a replacement parts kit for the newer version.

"Overall, i gitve this a 4/5. All the parts work very well, and i recommend you watch ideos on youtube before trying to install by yourself (unless you take it in to a sotre and have them convert it for you). The installation was easier that way and everything was fine. Very poleased with this, but there is one issue: the bolt catch piece does not catch when the mag is empty. Unlike the AWSS version, this piece comes shave off a bit more so that it never meets with the bolt, so there will be dry firing issues and you might waste some gas.

Pros:
-Easy installation, once you know what your diong
-All the parts (exept one) work after install

Cons:
-Bolt catch does not "catch"