With the XD field stripped, the first two items to replace were the striker safety lever and the sear spring. Powder River Precision supplies their striker safety lever with the kit and it is is engineered to reduce the long trigger pre-travel that is so prevalent on the XD line of pistols.
In order to remove the striker safety lever and the sear spring, the sear pin has to be removed. Depending on how many times your XD has been worked on, the pin may be able to be pushed out by hand or it may require a few light taps from a small hammer. I used my set of punches and the hammer for tapping this one out.
Note....be aware of the small parts that may want to get air borne (springs like to do this) as you push the pins out of the frame. One thing I've found useful is to do this inside of a garment cleaning bag. I can see right through it while working on the pins and it is more than large enough to give me plenty of elbow room too.
The sear pin shown above has been partially pushed out of the frame using one of the punches. As I was pushing the sear pin out, I removed both the sear and the sear spring. Pushing the sear pin just a little further and the striker safety lever will also be able to be removed. I did not push the sear pin all the way out of the frame as there was no need to do so. If you do, no problem.
Note that the ejector pin has been pushed out the opposite side of the frame and the ejector slipped off of the pin. This pin does not extend through both sides of the frame. I used a small flat blade screwdriver to push on the end of the pin. Doing this will make it easier to install the new sear spring.
As previously mentioned, the factory striker safety lever is replaced by the Powder River Precision's version, as is the sear spring. The outside diameter of the PRP sear spring is several thousandths smaller and so helps lighten the XD45c's trigger pull weight.
With the stock parts from the frame removed, it was time to
reassemble using the new PRP parts. The first component to be installed
was the PRP striker safety lever. I pushed the sear pin a small amount
into the frame and then slipped the striker safety lever onto the sear pin.
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