Polarstar - EMG Blue & Silver Edition JACK Electro-Pneumatic Gearbox Conversion Kit (Model: V2 M4 / M16)

"Best upgrade I have purchased was worth every penny. You won’t be disappointed

"pros:
- Pain to install but once in, fits like a glove, works great with prowin hop

- Easy to use and setup with FCU, just read manuel and follow instructions

- polarstar, need I say more on that...

- Easy to adjust psi (FPS) just use an alan wrench which is not included sadly, also comes with tournament lock in case your fields hates P*.


cons, yes cons

- installing may get frustrating but if you keep it at it, you will get it, just be careful with installation with trigger board!

- you need a tank obviously

- you don't have this

- refills, cheap to fill, you wield a double edged sword but a huge sword at that!

- you look like a ghost buster and pretty much everyone hates you because you have an amazing system at your disposal lol.

Honest opinion: I love this unit, fits well with a CM-16 300 and most V2 setups, I highly sugegst the ninja LPR regulator and line as well as a ninja 45/9000 which standard reg.

Noob tip: just take the piece that comes on the jack of the end of it's line and replace it with the adapter, I didn't realize this till half-way through and though I was missing a piece.

"Works great. Awsome performance for the price. Just wish it was stated that it does not come with the QD connector for the line comming out of the jack that lets it connect it to the line comming from the tank.

product found here : http://www.evike.com/products/54552/

"OMG this is the best 300$ i have ever spent in my airsoft life. Easy to install fires really great. I really thought that it was gonna be a really loud *pop* but no i was wrong its a really low *pop*. BTW this is my first Polarstar/HPA gun i ever owned. Its a good thing i got mines before it went out of stock. Thank You Evike, Polarstar and EMG.

"A very nice and light HPA engine. It's not terribly expensive, and it's the next easiest HPA kit to install apart from Fusion Engine type drop-in gearboxes.

Pros:
Adjustable RPS (1-99)
Feeds well
Awesome EMG blue and silver finish
Adjustable FPS (via regulator)
Easy to use
Full size FCU

Cons:
Does not come in a QD male connect, so you will need to buy one. Very important!
Not the most air efficient system, maybe slightly more efficient than an upgraded V12 with a red nozzle running 80 PSI.
I have a relatively short M4 (5" inner barrel), and my gun only produces about 330 FPS with 100-110 PSI, which means it's going to be shooting indoor speeds even for outdoor fields.

"Works great, but fcu is awkward. Programming is somewhat wierd.