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Slow Moving Bolt?


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#1 x8xSOULJAx8x

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Posted 21 June 2013 - 08:36 PM

I was just wondering why when I fire the gun in semi the bolt returns home slowly compared to my friends lm4. His is very crisp and snappy, mine feels slow enough that you can feel it lurching forward. Both of our guns are completely stock. And I doubt that its because I'm not using enough lube, I'm using frog lube. I would also like to point out my gun works perfectly, I just wish it would return faster so I can spam the trigger faster.

#2 BeachEMT

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Posted 21 June 2013 - 09:52 PM

You might be using too much lube. It should be a very thin coat, especially with frog lube.

#3 General Pickle

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Posted 21 June 2013 - 10:36 PM

I second Beach's statement; I've been using Froglube on it and it's doing great but it was giving me issues at first because I was using too much. I thought it was a normal amount but for the LM4 you really don't need much.

#4 x8xSOULJAx8x

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Posted 23 June 2013 - 09:02 PM

That would make sense. How much of the froglube do you guys suggest that I use? What areas as well?

#5 BeachEMT

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Posted 23 June 2013 - 09:27 PM

Basically it should look like there isn't any lube on there. I would put some lube in a rag or cotton patch and rub everything down with that. You should put it on the inside of the upper, the bolt and on the rails on the nozzle. Personally I would also put some on the top of the hammer and on the charging handle and groove.

#6 General Pickle

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Posted 23 June 2013 - 11:29 PM

Basically I just get a very small amount on the front edges and the bottom surface of the bolt, then I make sure the nozzle o-ring is at least moist enough that it won't dry out, then I put a little on the leading edge of the charging handle. Sometimes I put some in the little groove where the buffer stopper rides the bolt but it doesn't seem very necessary. Once I reassemble it I cycle the bolt until I am giddy with joy, generally allowing the lube to spread to the needed areas in a nice thin and even coat.

#7 x8xSOULJAx8x

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Posted 25 June 2013 - 07:23 AM

I tried BeachEMT's cloth method. It worked perfectly, now the bolt has a very crisp return. Thanks for all the help guys.




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