I completed a PF940v2 (G17) frame. This is an 80% frame. I was intending to use Rook rails in the rear with the P80 front locking block/rail. I put it all together and the slide was binding so badly it would not slide on the frame past the trigger housing. I tried another slide with the same result of binding and not going on the frame fully. I then put the rook rails in a different, well functioning PF940v2 frame and had the same binding in that other frame with both slides. I tried a second set of Rook rear rails and had the same result - binding with both slides.
I then swapped the Rook rear rails with a P80 rear rail out of a working PF940c (G19) build. The Rook rear rails worked perfectly in the 940c frame. I put the P80 rear rail into the 940v2 frame and the slide went right on the frame. The slide was still not silky smooth but it seemed acceptably smooth with the P80 rear rail and P80 front locking block.
I took the new build to the range. After about 10 rounds, the slide started binding again (still using P80 rails front and back) to the point of producing failures to fully cycle. I added more oil and kept shooting/clearing malfunction/shooting. Somewhere around 40 rounds in, it started working and now functions without problem. I put about 150 rounds total through the gun with zero malfunctions through the last 110 rounds. The slide is now smooth on the rails.
I have used Rook rear rails a number of times before on 940c builds without issue. The only thing I could think of was some kind of misalignment between the Rook rear rail and the P80 locking block. I am not sure that I have previously used Rook rear rails in a 940v2 frame. I did build a CL with Rook rear rails and a Rook front locking block that worked without issue with standard G17 slides.
I am not really sure what happened here. I have enough experience with these builds to be competent with the basic challenges. I suspect some sort of issue with the P80 front locking block being a little bit out of spec. I have not had prior difficulty with the P80 locking blocks and/or Rook rear rails. Has anyone else had trouble using Rook rails with the P80 front locking block in a 940v2 frame?
Thanks,
Rob
I then swapped the Rook rear rails with a P80 rear rail out of a working PF940c (G19) build. The Rook rear rails worked perfectly in the 940c frame. I put the P80 rear rail into the 940v2 frame and the slide went right on the frame. The slide was still not silky smooth but it seemed acceptably smooth with the P80 rear rail and P80 front locking block.
I took the new build to the range. After about 10 rounds, the slide started binding again (still using P80 rails front and back) to the point of producing failures to fully cycle. I added more oil and kept shooting/clearing malfunction/shooting. Somewhere around 40 rounds in, it started working and now functions without problem. I put about 150 rounds total through the gun with zero malfunctions through the last 110 rounds. The slide is now smooth on the rails.
I have used Rook rear rails a number of times before on 940c builds without issue. The only thing I could think of was some kind of misalignment between the Rook rear rail and the P80 locking block. I am not sure that I have previously used Rook rear rails in a 940v2 frame. I did build a CL with Rook rear rails and a Rook front locking block that worked without issue with standard G17 slides.
I am not really sure what happened here. I have enough experience with these builds to be competent with the basic challenges. I suspect some sort of issue with the P80 front locking block being a little bit out of spec. I have not had prior difficulty with the P80 locking blocks and/or Rook rear rails. Has anyone else had trouble using Rook rails with the P80 front locking block in a 940v2 frame?
Thanks,
Rob