TTI grandmaster kit $sold
Springs are never used and the connector has ~800 rounds through it
Zev v4 race connector & springs $sold
Tried it and didn’t like it. It’s been on my workbench for a couple years. I honestly can’t remember if I ever even fired a round with it, just some dry fire.
Zev adjustable trigger housing $ sold
Used for ~1,000 rounds
Jager polymer guide rod w/ 13 lb spring $ 15
Used for ~1,000 rounds
Nothing is wrong with any of this stuff, it’s just all collecting dust and needs a good home. All prices are shipped. Please contact me with any questions. 
PayPal accepted. Located in OK