Fx slug power kit not for Gen1 Impacts.

Forums PCP Airguns PCP Airgun – Discussion Fx slug power kit not for Gen1 Impacts.

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    biohazardman
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    Probly old news buried somewhere in the past thousands of posts but thought I would bring it up again just as well.

    I need to let people know that FX changed the set/grub screw to a larger size in the newish Impact slug power kit.  The new set screw and loading block are NOT included in the kit. This kit will NOT fit the Gen1 guns without modifications.  The reloading block will need replaced with possibly a Gen2? Anyway it is #B10 on the old Gen1 diagram. To make it werq with the Gen1 block the holes will need to be drilled and tapped to a larger size and fit to the new probe included with the kit.  I will probly install the kit at a later date due to the fact I need to drill and tap the loading block and alter the probes.  NOT probes do not need altered. :^)

    FX did a good thing with this change as my original set screw is showing signs of wear, it is bent and threads are damaged. Actually looks like it is getting ready to shear off so this upgrade needed to be done.  I normally shoot the Impact at near 75 fpe and it took many thousands of rounds to get to this point.

    Those with the Gen1 guns with the original loading blocks and probes/feeding pins, shooting at higher power levels, may want to think seriously about doing this upgrade and replacing or drilling and tapping their B10 reloading block and adding a larger screw for safety reasons.

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    nitrowoodtic
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    Thanks for the heads up on this as I have a gen 1. 

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    biohazardman
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    Lucky me!  Hunting around in the many drawers containing airgun parts I came across these.  The .30cal probe I ordered some months back has the new style loading block with the needed setscrew so I was able to install the kit after all.  All of the probes I have received from FX, since I purchased my gun in early 2018, have been the new style.  Only the original that came on the gun has the small set screw and a block to match.  The kit came with a sleeve and a tiny o-ring, we need more o-rings, ;^) that fits over the probe/feeding pin to make it the correct size for calibers over .22 would be my guess. I received this .25 cal sleeve with my slug power kit in .25 cal.

    What I was trying to show was the different sized screws and holes in the blocks but I messed it up and now the new block is in the gun and I am NOT going to tear it apart just to get the right picture. So this will have to do. The new set screw and hole in the block are MUCH larger.

     

                                    New block and probes                                               Old block and probe

    Left to right;

    1- Larger new style set screw,

    2- New style 30cal probe. 

    3- New style loading block.

    4- New pin style slug power probe without o-ring and .25 sleeve.

    5- 25 cal probe I won't be using.

     

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    Glem.Chally
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    Even early MK2 pre-power plenum have that smaller m3 probe holder.

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    biohazardman
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    That is good to know so others can include themselves in the needed upgrade.

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