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Differences between 45� & 90�

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el mondo

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Discussion starter · #1 ·
Differences between 45° & 90°

Hi everyone, could anyone tell me the practical differences between the two setups? Does 45 give a cleaner break for instance?

Thanks :)

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#2 ·
90 triggers last longer because of the way the piston is released. 45 triggers are usually found in stock rifles and they don't last. A 90 trigger is necessary for any setup using a strong spring, in fact, it should be the first thing you buy so you don't ruin other parts of your gun with a broken sear.
 
#3 ·
The 45* sears are designed to fail if you try to make the fps too high. The 90* sears basically last longer and let you use higher fps. It also has a much lower chance of causing slam firing, because it holds the piston better than the 45*.
 
#5 ·
A 45° trigger uses a sliding action to release the piston, and holds it at an angle which is where the cylinder drag comes from.

A 90° system uses a "folding"* action to release the piston and holds it at 90° which doesn't add any angular motion to the piston.

*By folding, I mean that the sear folds down towards the front, clearing the piston. This is opposed to the sliding action of the 45° system.
 
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#8 ·
buzzjam said:
Has anyone tried turning a 45 sear into a 90?
Click to expand...
No, that unfortunately would not work given the mechanics of the 45 degree sear setup.

The first sear (that long bar that drops for a 45 to disengage) is not configured properly, nor does it have the mechanical design to reconfigure for a 90 degree setup.

The second sear (the little semi-triangular shaped piece) also is not designed nor able to be re-machined in an acceptable configuration for 90 degree use

The trigger sear MIGHT be capable of redesign, but this is unfeasible given the amount of fabrication necessary.

The piston itself CAN be converted, but many budget 90 degree triggers include a new compatible piston within the purchase that this would be unnecessary for most conversions.

In summary: Maybe someone has, but nobody has posted anything on it because it's more work and effort than it's worth.
 
#9 ·
if you tight of budget and nearly keep fps stock spring, updrage steel 2nd sear, you still live longer.

The Stock 2nd sear always low quality, then it will break very soon or later.


If you want to go high fps, 90 degree system is more longer, easier pull than 45*.
 
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Discussion starter · #10 ·
Hmmm, thanks guys. I've got a spare AIP 2nd sear that's 45° and an 'upgrade' piston with a 45° rear to fit into my G spec. Didn't buy 45° deliberately, but if it's only suitable for low power that's fine.
Will I need to change the complete sear set?

Sorry for the daft questions, still not up to speed on the finer points of bolties.

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#11 ·
no, just change 2nd sear and you will be fine.

If you have stuck/hard install, use files sand a bit on 1st sear until it can feed it. Cheers
 
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