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amateurstuntman posted a topic in Rifles (Gas)I am setting out to modify my King Arms Micro Galil (MAR) to have a PolarStar Fusion Engine V3 gearbox replacement. The reason I am documenting this is that I have found a lot of info on the internet but not too much on Arnie's. What that means is that a lot of the info out there is about how they relate to playing in America and some of the Scandinavian countries but not much about using them in the UK. So, instead of red nozzle and 30RPS full auto 400fps "CQB" builds and guides on how to get more power out of a setup by using power creep to your advantage when chronoing (which I consider to be flat out cheating by the way) I intend to build mine in a way that is relevant to UK airsofting (as I see it). That means starting with a green nozzle and going for a skirmishable ~1J set-up with an extremely high ROF which I will be using for burst fire only and seeing where that takes me. For highest ROF you need high pressure in the system and very low solenoid dwell, perhaps in the future I will go for a more gas efficient set-up which will be based around an ultra-low regulator pressure but that will require a more freely flowing nozzle. Secondly, I haven't seen anyone who has one in a Galil. I am no Bingo, I am not going to be (nor am I capable of) carrying out gross modifications on the product; the Galil is almost entirely AK compatible so I shouldn't have to mod it at all. However, the PolarStar is rare and the Galil is rare so a P* Galil is super-rare, if I run into any problems with the installation I will document them here in case it is relevant to anyone else. I was hoping to start today, I ordered my P* on Thursday from The Grange for next day delivery, I was almost immediately called back so they could let me know I had missed the post and would have it today. Never mind, It's all good. It has not arrived today though and that is somewhat irritating. I had put aside some time this evening to begin this endeavour so I might as well carry on and show you something I have done to modify my Galil in anticipation of the arrival of the Fusion Engine. Fitting a rail to the Galil top cover. This is not difficult in the least, in fact is is orders of magnitude easier on the Galil top cover than it is on a normal AK variant due to the position of the Galil rear sight which results in the Galil top cover having a flat portion. The first thing I did was apply some tape to the top cover where I wanted the holes in the piece of rail to go: I cannot remember where I got the piece of rail, it was in my bits box but it is a pretty generic item. I then marked out the hole centres with a pencil: Next, I centre punched where I wanted the holes to go and removed the tape. I drilled through with a small bit and then worked up to my desired diameter incrementally so as not to ruin the work. I bolted the rail down with some titanium hardware that I had lying about from a job on my bike, simple really: This is the reason I had to wait until I was installing P* to do this, the bolts extend into the area that contains the battery when this is an electric rifle. You can see that I have added an oddly shaped oval washer on the front bolt because that bolt has to sit in a concave portion of the top cover: Now, you could do this with an electric Galil if you wanted, you would have to drill countersunk recesses into the base of the rail then hammer the top cover into those recesses with a countersinking punch, then use countersunk machine screws in upside-down and live with the bolts being on the top. I couldn't be bothered. There is also a pre-made AK top cover with a rail and rear sight but the rail is plastic and the rear sight is wrong. I like mine, I think it looks good: I know that isn't a PolarStar review but one is coming, I promise. If anyone has any specific questions about the V3 P* please feel free to ask. It is my intention to go into a fair amount to depth explaining the function of the whole system from HPA cylinder to regulator and the function of the P* itself and what that means in gaming terms.