I answered a question about the sears recently, when you upgrade the sears it's still the same style of piston which is not a good thing. The type-10 series have a bad design for a trigger system unlike say, an L96 or a CA M24, but they're still great platforms. The thing that changes the piston is a new trigger system which is based on a 90 degree piston as opposed to a 45, heres the post regarding that
The problem with the type-10 trigger mech is not only that the sears wear down quickly but also because it uses what's called a 45 degree system. Because of this the second sear sits at a 45 degree angle, and is perpendicular to the piston.
.......... _________/| <--- piston
..........|_________ |
......................./ \|
.....force ----> /
..................../ <--- this line is the piston sear
When you pull the trigger it pushes the second sear against that back part of the piston until it slides off and the cylinder is released. This causes the sear to chew through the piston. When you put in a heavier spring this accelerates the process. If you got new sears they would still be damaging your piston, not to mention with a 45 degree trigger mech and high power springs, the trigger pull can get a little heavy. What you need is a 90 degree trigger mech.
I believe this is how they work but, so someone correct me if I'm wrong, I've never had the chance to take one apart (yet ).
(90 degree mech uses a different style of piston)
.............................._
.................________l. l
................|________. l<--- Piston
............................l l_l
..sear flips down<---l
............................l<--- This line is the piston sear
......pivot point---> O
I don't know how the other sears are placed to keep the sear on the piston from flipping down, but when it does flip down, there is no contact with the piston as it falls, and the piston flies forward freely, allowing a light trigger pull (once again I may be wrong). 90 degree trigger systems are the zero trigger, the V-trigger, and the M-trigger. Well those are the ones I know of anyway. I believe there was a another one made somewhere, but I cant remember where it was. It's in there somewhere on noobies M-trigger thread on ASR.
Sorry about the crude drawings, but I hope that helps!
As a final note from what I have heard about laylax springs is that as you use them they shrink to a much shorter length whereas I haven't heard of PDI springs having this issue.
P.S. Periods mean nothing (in the "drawings") and are placed so "unused spaces" aren't deleted.
Sorry I can't quote it but it screws up the spacing for the drawings.
If you're going to upgrade the spring, it wouldn't be a bad idea to upgrade the trigger system although it is expensive. As for a piston, as said in the post above if you have a 45 degree system, whatever you get is going to get damaged, but I've heard very good things about polar star pistons, PDI pistons are also supposed to be pretty good but most people who use PDI automatically worship all their parts, but they are a high quality company. Personally I would go for the polarstar. As for the sears holding out for a couple months, I would say just be patient and save up for the 90 degree trigger, but I would suggest looking at other 90 degree systems out there like the V-trig which has an adjustable trigger pull.
I've heard the laylax barrels are so-so, it might be better to save up for an edGI. Also the laylax springs have been reported to shrink with use and lose power where PDI ones do not.
Between a TM and a JG, I would go for the JG. You'll end up just throwing away a lot of the stock parts anyway for upgrades, so why not save the extra $100 for upgrades. Well thats my $.02 anyway.
