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LM4 Cleaning Regiment


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#1 kwaispro727

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Posted 19 November 2013 - 11:06 AM

How often should I clean the gun?  Ideally after every usage, but realistically, how often, and what parts?

#2 General Pickle

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Posted 19 November 2013 - 11:46 AM

Ideally you should clean it after every day of use. Realistically you should clean it after every day of use :P Basically if you just test fire a couple rounds at home or whatever I wouldn't worry about it, but after a game day or training session it becomes much more important that you clean the gun. Are you using propane or green gas? What lubrication are you using?

#3 Chuck S

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Posted 19 November 2013 - 04:31 PM

Why would you think it's necessary to clean a gun -- any gun, airsoft or cartridge -- every time you use it?  Do the fairies descend on the gun during the night and mess it up?  If the gun was fine at the end of today what makes you think it'll be different in the morning?

The days of corrosive ammunition ended 60 years ago.  And there's no corrosive airsoft ammo I'm aware of.

Guns (real and pretend) do get dirty.  Then it's time to clean them but don't confuse shooting a few rounds (or a few hundred BBS) with getting dirty.  Needless disassembly and cleaning can do more harm than good.

-- Chuck

Edited by Chuck S, 19 November 2013 - 04:31 PM.


#4 gcw360

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Posted 19 November 2013 - 04:50 PM

View PostChuck S, on 19 November 2013 - 04:31 PM, said:

Why would you think it's necessary to clean a gun -- any gun, airsoft or cartridge -- every time you use it?  Do the fairies descend on the gun during the night and mess it up?  If the gun was fine at the end of today what makes you think it'll be different in the morning?

The days of corrosive ammunition ended 60 years ago.  And there's no corrosive airsoft ammo I'm aware of.

Guns (real and pretend) do get dirty.  Then it's time to clean them but don't confuse shooting a few rounds (or a few hundred BBS) with getting dirty.  Needless disassembly and cleaning can do more harm than good.

-- Chuck
I make it a habit to clean my inner barrel after a game.  I do this simply to insure any outside dirt is not left in the barrel. With as many guns as I have, it's simply a good practice for me.  If I am simply firing outside in the yard, with no mud and gunk around to foil things, then I clean after every few thousand rounds or so.  Also, I will clean the gun if I am storing the gun for an extended period.

#5 General Pickle

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Posted 19 November 2013 - 05:06 PM

View PostChuck S, on 19 November 2013 - 04:31 PM, said:

Why would you think it's necessary to clean a gun -- any gun, airsoft or cartridge -- every time you use it?  Do the fairies descend on the gun during the night and mess it up?  If the gun was fine at the end of today what makes you think it'll be different in the morning?

The days of corrosive ammunition ended 60 years ago.  And there's no corrosive airsoft ammo I'm aware of.

Guns (real and pretend) do get dirty.  Then it's time to clean them but don't confuse shooting a few rounds (or a few hundred BBS) with getting dirty.  Needless disassembly and cleaning can do more harm than good.

-- Chuck
If you are using propane then it's a good idea to clean the nozzle seal and barrel after a hard day of game play. Let me put it this way: If you have the luxury of playing in a sterile environment, such as an indoor CQB arena, and you can afford to continually buy green gas online, then cleaning isn't very important. If you're an outdoor field and mil-sim player it's a different story. Mud, dirt, dust, leaves/weeds, propane residue, water etc. will very likely find their way into your open bolt system. Will a bit of dust destroy the LM4? No, but it will introduce grim and friction to your lubrication. Water will rust the steel parts, mud and dirt will dry the rubber pieces, excessive propane residue supposedly damages the rubber components (though I have 4 non-leaking PMags that say otherwise), so I suppose in reality you should consider how hard you use your LM4. Will it be subject to harsh conditions? If so, you should probably check up on the internals more often.

#6 Chuck S

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Posted 20 November 2013 - 04:30 AM

Dirty requires cleaning, no argument there.  Just keep in mind what's dirty and what's not.  Your own experience will determine when the "dirty enough to need cleaning" point occurs.

Stepping out onto the back deck and shooting several hundred shots at targets in the yard doesn't get the gun dirty.  Rolling in the dirt and leaves with it for an afternoon probably does.  In either case the gun will run as well tomorrow morning as it does tonight.  If I'm not worried about it now I won't worry about it in the morning.  The gun will get cleaned when she's dirty.  Over-cleaning runs the risk of abnormal wear from taking the gun apart so many times.

-- Chuck

#7 netpoc

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Posted 20 November 2013 - 08:01 AM

Bottom line is this: clean the barrel after extended use, such as a game, because lubrication deposits will be present in the inner barrel in as little as 200 shots. The rest of the gun can go for an extended period until it's "dirty."

You will however want to keep the bucking as clean as possible. As any amount of lubrication on it will affect performance. Silicone and other common airsoft lubricants will also swell the bucking also affecting performance and creating feeding issues. So keep the bucking clean and keep the inner barrel clean in order to achieve peak performance.




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