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Posted: 1/6/2008 9:28:02 PM EDT
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So I got an FS, no problems w/ it at all, but the trigger is terrible. The part that bothers me the most is the trigger reset spring. THe lockwork itself isn't too bad for a combat type rifle, but that reset spring is so bad. Firstly, I would like to replace it w/ a lighter one. Of course if I get real desperate, I might try cutting a coil at a time out, though I know that doesn't always work so well. My dad even called FN up and asked them if they could adjust or swap out some parts or something, but they said no way, no how. Is the lockwork plastic or metal. I know the hammer is plastic like an AUG. Anyone have any links to aftermarket places or suggestions or anything??? |
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I mic'd the trigger reset springs and will order a lighter pair from Wolfe Gun springs tomorrow. If it doesn't work out, I'll just put the factory springs back in. There really insn't that much friction in the hammer/sear or the trigger or transfer bars. Most all of the weight is in those dual sear/trigger reset springs. What is that metal piece in the rear left corner of the lock-work module? I can't quite figure out what purpose it serves. Perhaps it is a milled off part from the select fire version??? |
It is the drop safety. How do you plan to get the springs out of the hammer pack? |
| One last word of warning, Last I checked the hammer/trigger groups were not available as replacement parts from FN. If you screw yours up you won't be able to replace it. It does get much better with use and without risking ruining a $2000 gun.........................DJ |
RIGHTWINGNUT: If at all possible you should take photos along the way and do a write-up on this procedure as you go along. I've had the same thoughts you've had and agree that it's the reset springs that need modification to improve trigger feel....I just haven't had the balls to take a punch to my fcg.  This would be a VERY nice modification if it works as intended and I hope you can update this post with your progress. Thanks! |
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Earlier I didn't see that the disconnector is pinned in place to the disconnector pin. If you can't drive out the disconnector pin the sear/disconnector unit will not lift out of the module box. You either have to drill out that little tiny 1/16" pin that pins the disconnector to its disconnector pin, or you have to shorten the disconnector pin on both ends a little so that you can lift the sear/disconnector out as one unit. probably FN didn't want some moron to try and make his gun full-auto by removing the disconnector and then blow the gun up for firing out of battery. Makes sense, but is a barrier to replacing the trigger reset/sear springs. Once you do this you can remove everything w/ a 5/32 punch and replace the trigger reset springs. Then you can put as light springs in it as you want provided that they are strong enough to reset the sear against the tension of the disconnector's torsion spring. AN EXTREME SAFETY WARNING THOUGH In doing all this I have realized that the F2k is extrememly unsafe when dropped on its butt. Putting lighter springs on the sear will increase this danger! This is b/c the sear engagement is linear w/ the bore. This is not typical w/ most guns as normally the sear rocks or pivots, but w/ the F2k, the transfer bars push the sear straight to the rear to release the hammer. If the gun were to accelerate in a rearward direction and then suddenly stop, the inertial force of the sear/disconnector assembly will continue to try to move to the rear and walk right off the catch on the hammer thus firing the weapon if one is in the chamber. The weapon does have a drop safety for if the gun is dropped on its muzzle. Thats the little metal thing in the rear L of the trigger module. But that drop safety does noting to arrest the sear or firing pin in the even that the gun is dropped on its butt. That is why the sear/trigger reset springs are so heavy, to reduce the ability of the mass of the disconnector/sear assembly to dance off the hammer. So once again, lightening up the springs will make it easier for the gun to have an inertia induced AD. Don't believe me. Slide the trigger module out the back and, w/ the original springs installed, drop the module on a hard floor from a height of only four feet. Drop it in such a manner that the rear of the module hits the ground. I'll be dammed if it doesn't drop the hammer. Or you can try holding it in one hand and smacking it into the palm of the other like when a guy is packing the tobacco before opening a new pack of cigarettes. You will be amazed at how easy it is to do this even w/ the factory springs. I wondered it there was something I wasn't seeing inside the gun that would somehow arrest the rearward movement of the sear when being dropped as such. So, i put it in the gun and dropped it in like manner from only the height of my knee cap (less than three feet). I found that in its original configuration dropping the butt on the ground from knee height dropped the hammer EVERY time. This is the case whether or not the safety is on too b/c all the safety does is arrest the rearward movement of the trigger and transfer bars. Frankly, I am afraid that if I were to turn around w/ it and bump the butt into something it could go off killing whoever happened to be in front of it. I am so dissatisfied w/ this condition I designed an additional drop safety that will fit in the rear R of the module to protect against rearward impacts on the gun. The design is pretty simple and the only reason that I figure why FN didn't put two drop safeties in the gun is b/c there may not be room for that when the module is configured for select fire. FYI, if you try to shorten the pin that the disconnector rocks on so that you can lift the entire sear/disconnector assembly out of the box, make sure to keep the pin cool so you don't melt any plastic the pin is touching. Just use water to cool it every so often as you remove material from the ends. |
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Sorry but I've got to repeat Modifying the triggerpack on your FS2000 is a bad idea You mentioned yourself how dangerous it could become from a drop/safety standpoint. It's really best to leave your FS2000 trigger as it is and let it break in. It's still not the best trigger out there but it's good enough to shoot anything you would be shooting with the FS..................................DJ |
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IN my opinion, leaving it the same w/o a drop safety is a bad idea. The fact that dropping the rifle from less than 3 feet will discharge it is frightening, even w/ the original springs. I really am not all that comfortable w/ it in combat as such and would rather have an M4. I'll just put another inertial drop safety on the R side of the trigger pack so I don't have to worry about it. But this is not for the unskilled. |
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But yes, if you are comfortable w/ such a dangerous gun and you cannot put another drop safety in it DON'T REPLACE THE TRIGGER RESET SPRINGS. The hammer drops w/ the factory springs when the module is dropped from my knee. W/ lighter springs it it the sear breaks when the module is dropped from the middle of my shin, so you are taking away your already narrow safety margin. What is this VP70 gun. Something that was very accident prone? |
Not for the unskilled, like say YOU. I just dropped my UNMODIFIED trigger FS2000 from waist and then middle of chest high with an empty chamber but full mag, eotech site, flashlight etc. etc. and no problems with the sear dropping. The sear dropping issue is something that apparantly YOU DID TO YOUR OWN RIFLE because you were too smart to listen to people suggesting that you might screw it up. Sorry to be blunt but I don't think FS2000's have a problem with going off when dropped unless they are Bubba'd................................................DJ |
My serial # is 94xx, you might ask them if there were any changes in the trigger groups between our serial Numbers. If you want to call them FN's number is: 800-635-1321. I've talked to one of the Tech guys at that number before and he was quite helpful. He confirmed to me the rumor that a couple of guys went to prison for modifying an FS triggger pack to full auto, even gave me the State they were in. Seemed like good people trying to help so I think it might be worth you calling them. I'd like to hear what they have to say.............................DJ |
And its all been as accurate as in your LMT M4? |
Remember that all things fall at the same rate. It doesn't matter whether the rifle is loaded down, or if the trigger pack is even in the rifle fellow. I stated that when I drop my unmodified trigger pack straight down on its rear onto my floor (concrete w/ very low pile carpet) the momentum in the sear will release the hammer when dropped from only 24" You shouldn't call people liars. If yours doesn't do this then I am happy for you. I don't know what could be a possible explanation for this, but mine does and I am apparently not the only one. Anyone reading this who has one of these should be very concerned and should take their module out and test it as described. Then they should chime in and tell whether or not theirs did it and at what height. I would really like to know what FN said about this situation. Frankly, this seems like a lawsuit in the making. I hope no one gets hurt before FN takes some sort of positive action. |
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Everything may fall at the same rate but heavier stuff hurts more if it lands on your foot. Please note that I'm not calling anyone a liar, I have no doubt that yours failed the drop test. The point was that yours was likely induced by your modifications of it. If it turns out that there is a defect in a number of guns you personally will have exactly zero recourse since you modified yours....................................................DJ |
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