Airsoft Canada - View Single Post - ACM M500 fix (cause they won't let me post on doctors corner)

pounce_the_jaguar · July 7th, 2009, 03:54

ADMINS PLEASE MOVE THIS TO DOCTORS CORNER/GAS GUNS

OK since no one out there in the vast wastelands of the web seems to have a help guide on this gun I thought I would do one. Before you go asking what my qualifications are, let me tell you.
I have:
-Taken this gun apart more then a dozen times
-custom made my own pieces for it. SUCCESSFULLY!
-found replacement parts in the deep reaches of the web

I will tell you how to maintain, repair and keep your mossberg happy and healthy. And if you love it as much as I do, you will follow this guide.

STEP 1.
KEEP GAS IN THE DAMN SHOTGUN
I cannot stress this enough. To many times have I bought a used gas gun to find leaky seals and the such. This should be followed with every mag of every pistol you ever own. Try to keep gas in the gun all the time. That being said, the only effective way to do that is to have bbs in the chamber (ready to fire) and have a good amount of gas in it. The bb's seal off the chamber so unfortunatly you have to store this gun condition 1. If you don't keep bbs in, don't be suprised if it leaks. I've talked to a few ACM m500 owners and they all have a resivoir problem so eather keep bbs in it or gas it up regularly like me.

STEP 2.
BUY REPLACEMENT PARTS
go to airsoftgi.com and buy a pair of steel reinforced cocking arms. Those will be the first to go after the O rings. The orings will need replaceing only if you don't keeep gas in the gun. Luckily you get a baggy full of O rings when you buy the thing (like the almost knew it wasn't going to last...). If your stock cocking arms break, don't try to tape them, soder them or even weld them back together. Its no use, they are made of a shitty pot metal/plastic combination which is not ferrous enough to weld or soder. Just suck it up and buy new arms.

STEP 3.
BUY THE RIGHT BBS
I have found on many occation that my shotgun won't fire. This is not the fault of the shotgun. You didn't put it back together wrong (in most cases). Its the bbs fault. The last game I went to a buddy tried my shotgun. He loaded it with .25 bbs and fired away... to no avail of course because they bbs werent perfectly round. Buy good bbs. Again this should be standard practice, I've had atleast one gun break a piston head because of bad bbs. Now I have a jam in a gas gun for the same reason. If your gun isn't feeding its 75% of the time because of the shape of the crappy cheap bbs you bought.

MORE TO COME LATER

July 7th, 2009, 03:54	#1
pounce_the_jaguar Trader rating Join Date: Dec 2006	ACM M500 fix (cause they won't let me post on doctors corner) ADMINS PLEASE MOVE THIS TO DOCTORS CORNER/GAS GUNS OK since no one out there in the vast wastelands of the web seems to have a help guide on this gun I thought I would do one. Before you go asking what my qualifications are, let me tell you. I have: -Taken this gun apart more then a dozen times -custom made my own pieces for it. SUCCESSFULLY! -found replacement parts in the deep reaches of the web I will tell you how to maintain, repair and keep your mossberg happy and healthy. And if you love it as much as I do, you will follow this guide. STEP 1. KEEP GAS IN THE DAMN SHOTGUN I cannot stress this enough. To many times have I bought a used gas gun to find leaky seals and the such. This should be followed with every mag of every pistol you ever own. Try to keep gas in the gun all the time. That being said, the only effective way to do that is to have bbs in the chamber (ready to fire) and have a good amount of gas in it. The bb's seal off the chamber so unfortunatly you have to store this gun condition 1. If you don't keep bbs in, don't be suprised if it leaks. I've talked to a few ACM m500 owners and they all have a resivoir problem so eather keep bbs in it or gas it up regularly like me. STEP 2. BUY REPLACEMENT PARTS go to airsoftgi.com and buy a pair of steel reinforced cocking arms. Those will be the first to go after the O rings. The orings will need replaceing only if you don't keeep gas in the gun. Luckily you get a baggy full of O rings when you buy the thing (like the almost knew it wasn't going to last...). If your stock cocking arms break, don't try to tape them, soder them or even weld them back together. Its no use, they are made of a shitty pot metal/plastic combination which is not ferrous enough to weld or soder. Just suck it up and buy new arms. STEP 3. BUY THE RIGHT BBS I have found on many occation that my shotgun won't fire. This is not the fault of the shotgun. You didn't put it back together wrong (in most cases). Its the bbs fault. The last game I went to a buddy tried my shotgun. He loaded it with .25 bbs and fired away... to no avail of course because they bbs werent perfectly round. Buy good bbs. Again this should be standard practice, I've had atleast one gun break a piston head because of bad bbs. Now I have a jam in a gas gun for the same reason. If your gun isn't feeding its 75% of the time because of the shape of the crappy cheap bbs you bought. MORE TO COME LATER Last edited by pounce_the_jaguar; July 7th, 2009 at 20:04..