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Tromix Trigger Install


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its pretty simple.

 

pull the safety detent, pull safety, pull hammer pin, pull hammer, pull trigger pin, pull trigger. then put back together. lube the pins and the sear faces (the shiny part of the trigger). remember how the springs are in there before you pull everything out. if you bought new pins then cut one of you old pins down to hold the trigger/ disconnecter together while installing. this isn't necessary but it makes it easier. you could also look on youtube for AR-15 trigger install.

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I read somewhere that the trigger group is held in place with pins that need to be drifted-out. I recall something about the pins being knurled or splined on one end for a better press fit. Which side of the gun are the knurls so I know to punch them out from the opposite side?

 

/M

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I read somewhere that the trigger group is held in place with pins that need to be drifted-out. I recall something about the pins being knurled or splined on one end for a better press fit. Which side of the gun are the knurls so I know to punch them out from the opposite side?

 

/M

The flat side has the knurl so tap from the other side as you'll see the pins have a slight point to them.
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The flat-sided pins are only in later model guns, I think X1201 and up as far as serial numbers go. The earlier guns have rounded ends on both sides of the pin so you'll have to push them out a little to see which side has the knurls.

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you bought a xp spring for your trigger? I'm guessing you meant hammer. if so it will not fit over the stock hammer sleeve/spacer. on mine i took the sleeve/spacer off the hammer and turned the OD down on them so the spring will fit over. if your good with a grinder you can use one to sand them down. hope this makes sense.

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