[FlatDarkGirth]

Hey guys,
I’ve got a Maple Leaf MLC338 with stock everything besides an AA chamber and Masada’s hop arm. I just purchased a Maple Leaf M165 spring to upgrade from the M145 that comes stock. When the 165 is installed, I’m able to shoot about three rounds before my trigger sear stops engaging the piston for some weird reason that I CANNOT figure out. When I pull the bolt out, I can see that the trigger sear is stuck in the “engaged” position and I have to press down on it to get it to pop back up. Does anyone have experience with this or have any suggestions? Thanks for the help!

 

[Blind Sniper]

45° sears are trash. Idk if you have 90 or not.

 

[BlackDogAirsoft]

45° sears are trash. Idk if you have 90 or not.

I'm pretty sure the MLC 338 comes with 90 degree sears (might not since maple leaf does make a 45 degree trigger).

 

[Blind Sniper]

Ah okay well in that case the first thing I would do is swap the springs back to see if the new spring IS the problem or created a NEW problem. If the old spring still has a result of the same problem, maybe take the trigger apart and investigate there.

 

[FlatDarkGirth]

Ah okay well in that case the first thing I would do is swap the springs back to see if the new spring IS the problem or created a NEW problem. If the old spring still has a result of the same problem, maybe take the trigger apart and investigate there.
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It does have the 90 degree sear and the old spring does work. I run around 500 FPS with it which is fine but the 165 will get me closer to my fields limit and who doesn’t wanna be right at the FPS limit? Lol I’m definitely stumped with this one…

 

[FMP Airsoft]

You might want to open up the trigger box and see if there are any rough points or things that need to be sanded or lubed.

 

[FlatDarkGirth]

Hm I may try that. Thanks for the suggestions guys!

 

[BlackDogAirsoft]

If it is indeed a 45 degree trigger, though I am 99% sure it isn't, try shimming it away from the receiver.
If not a 45 degree trigger, try anyway.

 

[FlatDarkGirth]

If it is indeed a 45 degree trigger, though I am 99% sure it isn't, try shimming it away from the receiver.
If not a 45 degree trigger, try anyway.

What exactly do you mean by that? Sorry, I’m kind of new to all of this.

 

[Blind Sniper]

There are 2 types of sears/pistons for almost all spring airsoft sniper rifles. 45° and 90°. 45 is trash and will wear out fast. 90° is stronger and lasts almost an eternity. I’m hoping someone else posts the comparison pictures because I don’t feel like finding them lol

 

[BlackDogAirsoft]

the comparison pictures

45 degree left. 90 degree right.
By shimming the trigger box from the receiver, I meant you should try placing 0.2mm washers between the trigger and the receiver (mount them on the trigger box screws).