I bought this Gk1 25 from a fellow member very nice pistol shoots great with JSB 25.39 I had this Aim red dot sight that fits it nicely and to capitalize on the accuracy I added the Buck Rail stock very well made and this setup is so lite it's unbelievable. So this morning the starlings came in to Rob the blue birds food and I caught 2 lined up on the ground and the Huben took care of the rest.