Recoil Spring

Check the force of the recoil spring and smooth cycling of the slide. Carry out the loading movement and check that the slide/barrel group springs forward smartly and locks. Repeat once.


1. Check the condition of the magazine tube, the lips and the floorplate.

2. Check for correct interlocking of the floorplate and insert.

3. Check for smooth movement and springing of the magazine follower.

4. Check for ease of insertion of the magazine into the frame and positive locking.

5. Check for free in and out movement of the magazine catch.

6. With an empty magazine in place, pull the slide to the rear and release it. The slide must be arrested in the rear position by the slide catch lever.

Slide Catch Lever

1. Thumb down the slide catch lever and check that the slide is released and forcefully springs forward.

2. Thumb down the decocking lever.

Parts Inspection

This inspection includes a close check of individual pans for damage such as cracks, unacceptable deformation, smoothness and condition of all sliding and bearing surfaces, as well as function and condition of all springs. This inspection should be carried out as a normal part of preventive maintenance each time the pistol is disassembled.

The barrel, slide and frame should be inspected to ensure serial number agreement.

Parts inspection is to be performed with the weapon unloaded, disassembled and cleaned. A. The Barrel D. The Frame

1. Ejection port, locking surfaces

2. Extractor

3. Firing pin and firing pin spring

4. Projection of the firing pin through the breech face

5. Anesting notch for the slide catch lever

6. Pins H.D. of the breechblock

7. Safety lock and safety lock spring

8. Front and rear sights, contrast markings, tightness of fit

C. The Slide

B. Recoil spring and recoil spring guide

1. Bore and chamber

2. Locking surfaces

3. Feed ramp

4. Muzzle

1. Take-down lever

2. Locking insert

3. Trigger, trigger bar & spring

4. Decocking lever

5. Slide catch lever & spring

6. Ejector

7. Sear ยปsear spring and safety lever

8. Hammer, hammer stop, reset spring

The following is a general guide to possible corrections for malfunctions you may have with your Sig pistol. If you still have problems or concerns about your weapon return it to FTB with a detailed discription of problems for repair.


No cartridge fed into chamber


1) Magazine not seated properly

2) Magazine dirty or deformed

3) Weak magazine spring

4) Corroded, dirty or damaged ammunition


Insert magazine properly

Insert fresh magazine, clean or replace the removed magazine

Replace magazine spring

Change ammunition

Cartridge does not chamber

1) Cartridge incorrectly fed

2) Low quality ammunition

Check or change magazine

Change ammunition

Slide does not close completely

1) Shooter error

2) Out of spec or defective ammunition

3) Weapon dirty

4) Chamber dirty

5) Recoil spring weak or broken

6) Recoil spring guide damaged

7) Weapon too heavily lubricated

8) Binding in the frame rails

Keep wrists locked and maintain a firm grip when firing the pistol

Replace ammunition

Field strip, clean and lubricate

Clean the chamber and bore

Replace recoil spring and guide

Replace recoil spring and guide

Clean and lubricate as per specification

Check to ensure no pins are protruding in the frame rails

P-225 / P-226 / P-228 TROUBLESHOOTING

( DOUBLE FEED ) 1) Low quality ammunition Replace ammunition

2) Dirty extractor

3) Broken extractor

4) Damaged magazine

5) Shooter error

6) Ruptured case in chamber

Clean breech face

Return to FTB

Replace magazine

Keep wrist locked and maintain a firm grip when firing the pistol

Clear, clean and inspect the weapon, replace the ammunition



Inconsistent ejection to include trapping brass in the ejection port

Slide has sprung forward but spent case sticks in the chamber


1) Low quality ammunition

2) Shooter error

3) Extractor damaged

4) Ejector damaged

5) Dirty gun, insufficient recoil to cycle the action

1) Underpowered ammunition

2) Too little rearward movement due to dirt

3) Damaged or broken extractor

4) Ruptured case in chamber

Correction Replace ammunition

Keep wrists locked and maintain a firm grip when firing the pistol

Return to FTB

Return to FTB

Clean and lubricate the weapon

Replace ammunition

Clean and lubricate the weapon and perform a function check

Return to FTB

Clear, clean and inspect the weapon, replace the ammunition

After being pulled, the I) Trigger bar spring broken Return to FTB

trigger remains in the rear- or incorrectly installed ward position and is no longer under pressure ! o


Slide is not arrested after the last round is fired

P-225 / P-226 / P-228 TROUBLESHOOTING


1) Shooter error

2) Underpowered ammunition

3) Improperly lubricated

4) Magazine follower jammed in upper part of the magazine

5) Slide catch lever is broken

6) Slide arresting notch damaged


Check grip position, keep wrists locked

Replace ammunition

Lubricate weapon

Clean or replace the magazine

Return to FTB

Return to FTB

Decocking lever does not spring back

Hammer does not stay cocked when the slide is pulled to the rear and released

The cocked hammer cannot be released by the trigger

1) Decocking lever spring is out of position or broken

1) Arm of the sear spring is not secured under the sear spring pin H.D. or broken

2) Hammer or sear broken

1) Trigger bar spring broken or positioned improperly on the trigger bar

2) Damaged sear

3) Damaged safety lever

4) Damaged trigger bar

Return to FTB

Return to FTB

Return to FTB

Return to FTB

Return to FTB

Return to FTB

Return to FTB

Slide is arrested before the last round is fired

1) Slide catch spring weak or broken

2) Shooter error

Return to FTB

Improper grip, thumb operating slide catch lever during recoil of pistol

3) Dirty weapon

Clean and lubricate the weapon


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