Bladerunner is right. A side note...paper coffee filters work well for cleaning Airspoft guns with a little silicone lube ("oil"). The filter does not release any lint, or fuzz like cotton, or paper towels can. Use the cleaning rod, satuirated with sil, then run a dry piece through it. There is no need to leave lube in the barrel. Old sil gets gummy, and collects sand/dirt. Firing silicone-saturated bbs thru isnt a bad idea, but not really necessary. After a thorough cleaning (inside and out), spray a small ammoount of sil into the mag well, and into the feed nozzle (where the bb's enter the chamber). Firing a few (like 3) CLEAN bbs through with hop-up fully on distributes the sil through the hop unit. Remove Mag, empty mag, and replace. Keeping it on as well as the barrel cap, keeps dust out of the inside of the AEG. Very dusty in AZ, even indoors. Another thing i do, just because, is the clean the inside of my outer barrel. It is always dirt as hell. I clean the inner barrel with wet cloth, filter pieces until they come out clean, then a few dry ones. Cleaning inside mags is also a good idea, as well as the loading rod. What good is it to have a clean gun, if the bb's are getting dirty in the rod. SAme goes if you have a auto loader. Be sure to consult your manual (or knowledgeable buddy) before you take apart mags. TM M16 mags are pure and sumple, but high-caps can get complicated. Don't forget to discharge battery, and turn hop-up ALL THE WAY OFF for storage (a few days or more). Also, leave mags empty. Leaving them loaded sets the spring, and feed problems may arise. Also make sure to leave the Mechbox spring in a rested state (you have probably heard this before). Fire semi-auto once or twice with charged battery to release it. Finally, (mot sure if I already said this) wipe any extraneous sil from the outside of the gun. It collects dust like a magnet. I also disconnect my battery, turn off all scopes, accessories, etc. Common sense stuff, but it makes all the difference. Ask the vets for more details. This is just from experience of having my M4 for less than a year. Oh yeah, and with GBB's leave mag empty of gas (save for a small ammount), and lube all rubber areas, very well. Pay special attention to the mag nozzles, and any seals in the internal parts. Good luck, and shoot responsibly!
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