Sig Pro Magazines

Fig. 11

Sig Sp2340 Barrel
Fig. 12

H3T Notice

A Do not remove the grip plate 45 (work step 9) unless the weapon is extremely dirty (water, sand, mud etc.)

9. Press the retaining lug 45a in the well and remove the grip plate 45 (Fig. 13).

Fig. 13

I3T Notice

A This level of stripping is sufficient to allow a thorough cleaning after shooting.

A Further dismantling of the pistol may only be carried out by qualified armourers and gunsmiths.

7.2 Cleaning the pistol

I3T Notice

A Never clean barrel 1 from the muzzle end and do not use steel wire brush as it can destroy the smooth surface of the bore. Use a suitable cleaning rod and brush of matching calibre (see Sect. 12).

A Solvents can be harmful to the surface finish of the pistol. Read the manufacturer's warnings and indications before using solvents or cleansers.


1. Lubricate the cleaning brush with gun oil and insert it into barrel 1 via the chamber. Use brush to carefully remove all powder residues and dirt in the barrel 1 and chamber.

2. Wipe powder residues and oil from the barrel bore and chamber with cleaning patches.

3. Clean external surfaces of barrel 1 with a brush dipped in gun oil.

4. Clean the metal guide in the frame 13, the inside and outside surfaces of the slide 4, the locking insert 14 and recoil spring 3 with a brush or rag. Then oil or grease with a cloth impregnated with gun oil or grease.

5. Lightly oil bores of barrel and chamber.

6. If the weapon is extremely dirty (water, sand, mud etc.), in addition to normal cleaning, the grip plate should be removed (see Sect. 7.1, Point 9). This permits thorough cleaning of the trigger mechanism.

Sig Sp2340 Barrel

7.3 Assembling the pistol Procedure

1. Check that there is no foreign matter inside the pistol.

2. Push the grip plate back on from below until it notches home.

3. Place the barrel 1 with the control cam in the slide 4 from below.

A When recoil spring 3 is inserted into slide 4, it becomes preloaded. If the recoil spring guide 2 is not carefully installed in slide 4, it can fly out, together with the recoil spring 3, and injure you or someone in your vicinity.

4. Insert recoil spring guide 2 with recoil spring 3 into slide 4.

5. Push the entire system onto the frame 13 from the front until it is correctly on rear side positioned.

6. Push the slide catch lever 17 into position horizontally from the left until it rests against the slide 4.


7. Hold the frame 13 with the right hand. Pull the slide 4 back with the left hand until the recess 4b on the slide 4 coincides with the slide catch lever lug 17. Press the slide catch lever 17 into position until it audibly notches home (Fig. 15).

Fig. 15

8. Follow the slide 4 forwards with the hand.

9. Thumb down decocking lever 38. (Not applicable for DAO pistols.)

I3T Notice

A The pistol is unloaded and decocked.

7.4 Verification of functions

O3 Notice

A Verification of functions must be conducted on the assembled pistol:

- to identify causes of malfunction,

- after completion of repairs

- and after each cleaning and assembly of the pistol.

Procedure f

1. Remove the magazine and unload the pistol (see Sect. 5.8).

2. Check the elasticity of recoil spring 3 and the smoothness of the slide 4 action.

- Draw back slide 4 to the stop and allow it to fly forward.

- Check that slide 4 is impelled forward with sufficient energy and that it locks up.

- Repeat the verification test. "

3. Check the trigger mechanism (DA).

- With hammer 29 decocked, pull trigger 19 through.

- Check that hammer 29 cocks and that at the end of trigger travel, it strikes firmly forward and comes to rest in the safety intercept notch.

4. Check trigger travel and trigger interruption.

- With hammer 29 decocked and trigger 19 pulled through, draw back slide 4 to the stop and release it.

- Check that hammer 29 is restrained in its cocked position (trigger remains pulled through).

(Not applicable to DAO pistols.) ;

5. Check simple trigger function (SA).

- Release trigger 19.

- Check that trigger bar 22 reengages and whether hammer 29 drops when the trigger is pulled again.

3. Check function of decocking lever 38 and safety intercept notch on hammer 29.

- Cock hammer 29 and decock it with decocking lever 38 without touching trigger 19. (Not applicable to DAO pistols.)

- Check that hammer 29 is arrested in the safety intercept notch before reaching its forward end position and trigger 19 is guided to the rest position.

I. Check slide catch lever 17.

- Insert empty magazine, draw back slide 4 to the stop and release it.

- Check that slide 4 remains caught in its rearmost position.

- Actuate slide catch lever 17.

- Check that slide 4 is released and impelled forward with sufficient energy.

- Actuate decocking lever 38. (Not applicable to DAO pistols.)

- Remove magazine.

3. Inspect magazine.

- Check condition of magazine tube 46 for signs of damage or dirt (lips and floorplate).

- Check that magazine floorplate is properly secured.

- Check free movement and spring action of feeder 49.

- Check smooth insertion of magazine into frame 13.

- Check magazine catch 24 for clean engagement and release.

9. Inspect external appearance of the pistol.

- Check front sight 5, rear sight 6, grip plate 45 for damage and dirt.

- Check that front sight 5, rear sight 6 and grip plate 45 are firmly secured.

10. Verification of numbered components.

- Check that serial numbers of barrel 1, slide 4 and frame 13 correspond.

7.5 Care of the pistol

O3 Notice

A Always keep your pistol in immaculate condition and in good working order.

A Always clean your pistol after use.

A Never modify or repair parts of your pistol yourself.

A Have your pistol checked once every 12 months by a qualified gunsmith or armourer because defects, wear, corrosion, etc. are not always visible from the outside.

A For repairs or service work, however, we recommend that you return your pistol to the manufacturer who always holds a full range of replacement parts in stock.

A If you order spare parts without returning the pistol, you are responsible for ordering the correct part and its correct fitting by a qualified gunsmith or armourer.

A The manufacturer and importer cannot be held liable for faults in the pistol or malfunctions if the pistol has been modified or non-original parts have been fitted by third parties.

Sig Pro Frame Cracked

8 Function of the Pistol

Wain rig

A The description of functions is not a set of instructions covering the use, care or repair of the pistol. Any manipulations on the pistol based on the following description of functions are strictly prohibited.

8.1 Function sequence when loading

8.1.1 Magazine inserted

- Full magazine is inserted up to the stop in the frame.

- Magazine catch 24 has engaged the magazine.

Sig Magazine Catch
Fig. 17, Round being chambered
Sig Sp2340 Barrel

8.1.2 Function sequence when loading

- As slide 4 is drawn back, the hammer 29 is cocked.

- Top round P is thrust up into the feeding position by magazine spring 48.

- When slide 4 is released, it is impelled forward by the compressed recoil spring 3.

- Round P is chambered in the barrel 1 by slide 4.

The pistol is ready to fire.

Hammer 29 is cocked * and can be decocked * with decocking lever 38.

* Not applicable to DAO pistols.

Sig Arms Sp2009 With Safty
Fig. 18, Sear being pivoted out of SA notch

8.2 Function sequence when decocking *

8.2.1 Hammer decocking *

- Decocking lever * 38 is thumbed down.

29a - Sear 36 lifts out of register with the SA notch 29a of 36 hammer 29.

- Hammer 29 is released and pivoted forward by hammer strut 32 and main spring 33.

- Hammer 29 engages decocking lever 38 and accompanies this until being intercepted in the safety notch 29b by sear 36 (see Fig. A).

- When decocking lever 38 is released, it returns to the rest position.

During and after decocking, firing pin 12 remains locked.

Safety intercept notch 29b is the rest position of hammer 29.

Not applicable to DAO pistols.

Hammer Decoked

Fig. 19, Hammer being cocked via trigger action

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