For all WE M4 users: If you are using a WE M4, order yourself a WE M4 Open Bolt kit. It essentially gives you 100% spare internals for you to swap out at a moments notice (gives you a full spare bolt group; get a NPAS for it and.you can have one bolt for outdoors and one for CQB). Break a nozzle, no problem.
Trigger spring snaps, no worries. As long as you have practice taking your rifle apart and are comfortable you can fix any issue with your rifle within fifteen minutes on a hard surface like a table or counter top. The open bolt kit is a $90-100 investment that keeps you covered for a myriad of part failures. Get it. If you are using something other than a WE M4, this is not for you, obviously.
Using a non-WE system: build a spare bolt group and get a spare trigger box/assembly. Easy to swap quickly.
Solid seven mags should do you just fine, however grab ten just in case you want a full 300 round loadout.
Gas your mags up to the max and you will get two ammo fills if you are playing in a decently warm area.
Gas canister is only necessary for MilSims, and I mean the kinds of MilSims where you will be far away from CP for awhile and you know you will be doing alot of fighting.
Make sure to take a small set of pin punches, Allan keys, and a flat head screwdriver. All three in combination should have you covered for anything you'd need to take apart and are lightweight - should be under a pound in weight.
An armourers wrench is a great investment. Again, can be kept in a pack and is fairly lightweight. This isn't a necessity, but at least bring it with you to CP just in case.
Solid rig. Make sure it's comfortable. Very comfortable. The added weight of the gas mags is night and day compared to AEG midcaps. Invest in something that fits snugly but comfortably so it don't flop around on your chest on the run. Also make sure you have good pouches to keep your mags in. Again, something that fits the mags snugly so they don't flop around.
Can't think of anything else off the top of my head. Cheers and good luck.
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Guardians of Asgaard
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