Hey guys, I too am starting out as a sniper. (skip this waffle if u like, it's not hugely important) I've not yet bought this gun, but I am and have been thoroughly researching which sniper to get while trying to be cost effective. Now, I've discovered that aside of buying a really expensive gun like TM l96 right off the bat, a lot of l96 clones are pretty much toys with high fps but crap accuracy and short lived plastic internals with little or no upgrades available. However, upon discovering the well mb01 I've decided to buy it and then just replace the crappy plastic parts that are likely to crack or wear away. For the time being, i'm going to replace the parts that will inevitably break, such as the trigger box and piston, so i'm buying an upgrade kit plus a new trigger box once I get the gun.
Now, I have some questions about upgrading the accuracy of my gun. Since I am not made of money, I would like to know which single accuracy upgrade would be the most effective on it's own? A: New barrel? B: Barrel spacers? C: Metal hop up lever? D: Entirely new metal hop up piece? if so, how effective in terms of deviation (mm/cm) away from target per metre? Back up question: if none of these a noticeable improvement on their own, do they only make a noticeable difference in combination? i'd be very grateful to any experienced players who could answer these questions, thank you for reading
Firstly, check the barrel. Disassemble the gun, check the barrel for any obvious problems, chips or dents on the inside, burrs on the end of it and make sure it's straight. Give it a good clean with isopropyl alcohol and a soft cloth, using a barrel-cleaning rod. If there are any problems that are unfixable, e.g. bent barrel, then get a new barrel for the gun.
Don't spend any money on actual barrel spacers, use paper and tape. For mine, I got sheets of A4 paper and wrapped around the barrel tightly, taping in place where needed, until it fit snugly into the outer barrel, making a cheap, full-length barrel spacer. Much better than spending £15+ on barrel spacers.
A metal hop lever will be stronger than the plastic ones, and therefore will lift heavier ammo more consistently and without the chances of it bending or breaking. It's a relatively cheap upgrade, although not necessarily needed, you can replace the nub in the stock hop unit with part of a Biro pen ink tube to give a harder nub that should lift heavier ammo. Then, replacing the stock hop rubber with a decent brand one should remove most of your inconsistencies.
If you get a new metal hop unit, depending on the one you get, you will most likely need to use AEG barrels and hop rubbers, meaning that you'll need to replace those parts too. If you can afford it, that's the route I'd take. Replace the unit itself with the airseal one from ASPUK and get yourself a MadBull barrel of appropriate length (you'll need 495mm or less to fit inside the outer barrel without having a silencer to hide the extrusion). Getting a slightly shorter barrel won't matter, will make no difference to your range or accuracy, same goes with getting a longer one.
If you want to increase consistency with FPS a bit more, then use PTFE tape around the cylinder head thread and around the hop unit to barrel joint, to increase your air seal.