Читать книгу The Gun Digest Book of Firearms Assembly/Disassembly Part V - Shotguns - J B Wood - Страница 11

Beretta Model A303

Similar/Identical Pattern Guns The same basic assembly/disassembly steps for the Beretta Model A303 also apply to the following guns:

Beretta Model AL-2

Beretta Model A301

Beretta Model AL-3

Beretta Model A302

Data:	Beretta Model A303
Origin:	Italy
Manufacturer:	Armi Beretta S.p.A. Gardone, V.T. (Brescia)
Gauges:	12
Magazine capacity:	2 rounds
Overall length:	44 inches (with 24-inch barrel)
Barrel length:	24, 26,28, 30 & 32 inches
Weight:	6-1/2 to 7-1/2 pounds

The original Model A303 was introduced in 1983, and in 1989 a Sporting Clays version was offered, with a wide barrel rib and different stock dimensions. Also, in 1989, the A303 Upland Model was introduced. In 12-gauge only, it has a shorter barrel and an English-style buttstock. The earlier guns, the AL-2, AL-3, A301 and A302, are essentially the same, mechanically.

Disassembly:

1. Lock the action open, and set the safety in on-safe position. Unscrew and remove the forend cap.

2. Slide the forend off toward the front.

3. Remove the barrel toward the front.

4. Remove the gas piston.

5. The bushing inside the piston is retained by a ring-clip. This is not removed in normal takedown, only for repair.

6. Restrain the bolt, press the release button, and ease the bolt to forward position. Grip the cocking handle firmly, and remove it toward the right.

7. Move the action slide assembly foward, while pushing gently on the rear of the bolt, and remove the bolt and action slide.

8. Detach the bolt from the action slide.

9. Detach the slide plate and spring strut from the bolt.

10. Push out the cross pin, and detach the strut from the slide plate.

11. A roll cross pin retains the bolt handle retaining plunger and spring. If this assembly is removed, restrain the spring.

12. The firing pin and its return spring are retained by a vertical pin on the right side of the bolt at the rear. The pin must be drifted out upward. After removal of the firing pin, the locking block can be turned upward, and is taken out toward the left.

13. The extractor and its coil spring are retained by a vertical pin on the right side of the bolt at the front. The pin is drifted out upward. It is lightly staked at the top, and should be re-staked on reassembly.

14. Depress the carrier stop button toward the rear, allowing the carrier to drop lower.

15. With a non-marring tool, push out the trigger group retaining pin.

16. Depress the carrier latch button, and move the trigger group forward and downward for removal.

17. With the carrier in the fully lowered position, grip the carrier spring firmly, and compress it slightly rearward while moving the semi-circular attachment at the front upward, to disengage it from the recess in the carrier. Remove the spring, guide, and attachment piece.

18. Remove the spring base.

19. Push out the carrier pivot pin.

20. Remove the carrier upward.

21. The carrier dog pivot is a riveted part, and it is not removed in normal takedown.

22. Move the safety to off-safe, restrain the hammer, pull the trigger, and ease the hammer down to the forward position. Depress the hammer slightly at lower front, and push out the hammer pivot toward the left.

23. Remove the hammer and its two-piece spring strut upward. The strut arms are easily detached from the hammer.

24. The hammer spring and plunger are contained in a cylindrical housing at the rear of the trigger group. The housing is retained by a roll-type cross pin. After removal of the pin, the housing, spring, and plunger are taken off rearward. If this unit is removed, control the spring.

25. Push out the grigger cross pin toward the right.

26. Remove the trigger assembly upward.

27. The trigger spring plunger is riveted at the top and removal should be only for repair purposes.

28. The secondary sear and its vertical plunger and spring at the front are retained by the trigger pivot sleeve. If the sleeve is pushed out, the plunger and spring will be released, so restrain them.

29. The carrier stop button and its coil spring are retained by a cross pin at the front of the trigger group. With the pin removed, the button and spring are taken out toward the front. The pin is staked on both sides, and removal should be only for repair.

30. A plunger and spring position retain the safety button on the right side of the trigger group. Use a small tool to depress the plunger upward, and push the safety out toward the left. Restrain the plunger and spring, as they will be released as the safety clears.

31. The combination shell stop and carrier latch should be removed only for repair purposes. A small roll pin must first be drifted inward.

32. After Ithe roll cross pin has been drifted out inward, the vertical pin that pivots the shell stop and carrier latch is drifted out downward, using an aperture provided in the lower edge of the ejection port. The shell stop, latch, button, and spring are then removed inward. Again, this system should be removed only for repair.

33. Two screws retain the forend baseplateat the front of the receiver. The magazine tube is not routinely removable.

34. The rubber bultplate is retained by two Phillips screws. A 19mm socket is required for removal of the stock mounting nut. Removal of the stock will give access to the bolt spring housing. If the bolt spring and plunger are to be removed, use caution and control the spring.

Reassembly Tips:

1. When replacing the carrier spring system, do it in reverse of the takedown procedure. Engage the semicircular attachment with its recess in the carrier, put the base on the rear tip of the spring guide, and push the base forward and then into its recess.

2. If the bolt slide strut has been removed, be sure it is reattached as shown.