I recieved my new GRT -III trigger last week. I have an older version GRX-II trigger on my Gamo Shadow and my brother-in-law loved it. We tried to order the same for his Gamo 220, but found that Charlie had a newer version, the GRT-III. It looked similar to the GRX-II but the trigger blade was serrated. After we installed it (no problem), we did a test fire. I was surprised by the break. It was super smooth and crisp. We did a side by side comparison with my GRX-II trigger. The new GRT-III trigger was perfect right out of the box. We then adjusted the second stage of my older version trigger and we got it to feel almost like the new GRT-III.
The new GRT-III is a great trigger. A very good feel and a super crisp break. Great job Charlie. You have another winner.
