How To clean and Disassemble a Sig Sauer P250 Including Trigger Assembly

The new Sig Sauer P250, also known as the SIG P250 pistol, has reliability, performance, and dependability, as well as design versatility with caliber, grip module, and trigger length choices. The Sig Sauer P250 pistol is available in the following configurations: P250 Large Size, P250 Compact, P250 Subcompact Nitron, P250 2 SUM. 

This gun is available in 9mm,357SIG,40S&W, and.45ACP calibers. Proper care of your Sig Sauer P250 assures both safety and peak performance. Try to wash your handgun from the inside out.

When you own or repair a Sig Sauer P250 pistol or comparable handgun, you will comprehend how an ultrasonic gun cleaner may save time and effort while cleaning and repairing the weapon. 

An ultrasonic weapons cleaner is quick, comprehensive, and safe since, unlike certain solvent washers and aerosol sprays, today’s ultrasonic gun cleaning solution is recyclable, reducing disposal issues with used solutions.

The Sig P250 is one of the most popular models in the Sig P Series. Previous editions of this pistol, like the P220, resulted in the growth of the P250. Despite its popularity, Sig Sauer discontinued this model in early 2018. If you’ve arrived at this page, you’re probably wondering what to do to disassemble a Sig Sauer P250. The steps for field stripping this weapon are straightforward. The most common issue that many owners confront is cleaning the trigger assembly.

How to choose and install your ultrasonic handgun cleaner for cleaning your Sig Sauer p250 pistol?

A workbench or bar counter ultrasonic cleaner like the LR617 with its lubricating pan is perfect for washing one or two handguns at such a time in sporting goods stores, service departments, and serious handgun collectors. Whatever type and model ultrasonic handgun cleanser you choose, there are procedures to take before beginning the cleaning process, which should be followed by following the manufacturer’s operating instructions.

  • Load the ultrasonic weapons cleaner container to the fill line (or about 2/3 full) with water and a diluted ultrasonic cleaning concentrate according to the manufacturer’s recommendations. CLN-LR215 should be diluted from 1 part to 10 parts of water.
  • Fill the supplementary lubricating pan with ultrasonic gun lubricant solution and insert it into the ultrasonic cleaner container in the same manner. CLN-LR212 is a nice ready-to-use option. Make sure the lubrication pan’s bottom is in touch with the cleaning solution.
  • Switch on the ultrasonic cleaner and run it for around 30 minutes to remove cavitation-inhibiting entrained air from both the cleaning and lubricating solutions. When bubbles stop rising to the surface, degassing is complete. This procedure must be repeated each time you use new cleaning or lubrication solutions.
Buy on Amazon

How to disassemble your Sig Sauer p250 handgun?

Make sure the firearm is not loaded. Take out the magazine as well as any shots still in the chamber. The Sig Sauer p250 is then field stripped.

Loosen the takedown lever from the body by wiggling it out and dragging it away. Raise the rails of the slide stop. Pull back on the hammer and remove the trigger component or the firing control unit. Remove the spring from the trigger’s opposite end. Pull the trigger all the way forward and pull out the trigger bar and trigger. Because the bigger pin and the sliding stop are spring-loaded, use caution when removing them. Push the pin out while keeping your finger on the sliding stop. Remove the spring from the sliding stop.

Put a punch or similar instrument between the extractor and the frame on the slide. To remove the extractor, twist the tool, freeing the extractor pin and spring. Take out the retaining pin towards the back end of the slide on the right side. Apply pressure on the safety lock. Slide-out the whole firing pin and spring while you press on the lock. Disconnect the pin and its spring. When you flip the slide, the safety lock and its spring must fall out.

 Your Sig Sauer P250 pistol has been disassembled successfully. Its components are now ready for cleaning with an ultrasonic cleaner.

Sig Sauer P250 Handgun Cleaning process:

Eliminate powder leftovers, bullet shavings, carbon, and other loose impurities with the weapons kit cleaners and equipment. Tip: To create the cleaning bath, clean the weapon with hot water if it is particularly unclean.

Place the hammer in a cocked position. To improve cleaning action, raise the star shell ejector and add a spacer between the star and the cylinder. Place your firearm pieces in the mesh basket so that no air is trapped. Set the timer for 7-10 minutes and lower the basket into the cleaning agent. Cleaning time is determined by the weapon’s condition.

Remove the handgun parts from the bath at the end of the cycle. If they are not clean, immerse them in the bath until they are. Do not reach into an ultrasonic bath that is in use. If you wish to check or reorganize the pieces, remove the basket from the bath.

After cleaning, rinse the components in freshwater to eliminate all residues of the cleaning solution, shake to remove excess water, and drain. This will be aided by compressed air. Put the weapon pieces back in the basket.

Place the lubricating pan back into the ultrasonic cleaner, making sure the bottom of the pan is in touch with the ultrasonic cleaning agent. Set an alarm for 10 minutes and immerse the basket in the lubricating solution. The weapon components will be properly lubricated as ultrasonic waves move from the ultrasonic cleaning bath to the lubricating bath.

After lubricating the pieces, remove them and enable them to drain. Do not use a blow dryer. Before reassembling, inspect and lubricate the parts according to the manufacturer’s recommendations.

Buy on Amazon
Buy on Amazon

Process of the Sig Sauer P250 Pistol reassemble:

Replace the safety lock spring and the safety lock. Insert the firing pin spring into the firing pin. There are smooth surfaces on the firing pin. These should be facing the viewer. Reinstall the firing pin by pressing on the safety lock (spring end first). As you drive in the retention pin from the right-hand side of the slide, press on the firing pin. Reinstall the extractor spring and extractor pin on the slide. Punch the extractor into position on top of the pin.

Begin with the stripped receiver and the hammer to reassemble the frame. Hold the hammer in position while partially inserting the hammer pin. Insert the safety device into the gap between the hammer and the receiver. Push the pin in. Replace the smaller spring with the bigger one. Insert the spring back into the hammer. Return the hammer to its upright position. Drive in the smaller pin partially as you compress these springs. Check that the safety device’s slot is aligned with the pinhole. Thread the pin through this.

Reattach the spring to the slide stop and replace it in the receiver. Replace the pin with its head on the opposite side of the trigger groove. Place the trigger and align the trigger bar with it. Slide the trigger bar into place. Reinstall the spring. Hook the longer end of the chain onto the trigger bar. Insert the rounded shorter end into the nearest receiver hole.

Replace this piece in the P250 frame. Takedown the lever and replace it. Put the frame, slide, coil, and magazine back together. You’ve just finished reassembling your “new” Sig Sauer P250 Pistol.

How to remove the trigger assembly (Fire Control Unit FCU):

Push the takedown lever out of the frame, toward the lever side, once the P250 has been field stripped. Lift the front of the FCU gently with the two rails, partly detaching the unit. After that, you’ll need to draw back on the hammer to allow the FCU to be removed from the frame. Next, detach the trigger bar spring by gently lifting the coil to allow the hooked end to separate itself from the trigger bar.

Pull the trigger all the way forward to release the trigger bar and enable it to disengage from the remainder of the device. Then, by pulling it out, remove the sliding catch lever pin. Remove the slide catch lever and spring from the rest of the FCU. Take off the hammer pivot pin. Next, detach the hammer strut pin partly; You will be able to remove both the small and big mainsprings as a result of this.

At this stage, the safety lever must be free to fall. Releasing the hammer strut pin frees the hammer from the FCU.

Leave a Comment