By THOMAS E. WESSEL
2. Front sight*
3. Barrel lug*
4. Barrel lug stud pin
5. Barrel lock nut stop plunger pin
6. Barrel lug stud
7. Barrel lock nut stop plunger spring
8. Barrel lock nut stop plunger
9. Fore-end tube nut
10. Fore-end lube
11. Fore-end tube cap*
12. Action bar*
13. Magazine guide screw
14. Magazine guide
15. Barrel lock nut
16. Magazine plugt
17. Barrel lock nut key (2)t
18. Magazine tube*
19. Magazine spring
20. Magazine follower
21. Barrel lock compensator screw
22. Barrel lock spring
23. Barrel lock compensator
24. Barrel lock
25. Barrel adjusting bushing lock screw
26. Barrel adjusting bushing lockt
27. Magazine lockt
28. Barrel adjusting bushingt
30. Stock bolt studf
31. Stock bolt washer
32. Stock bolt lock washer
33. Stock bolt
34. Buttplate screw (2)
36. Stock reinforcement ring*
38. Ejector spring
39. Right cartridge stop
40. Left cartridge stop
42. Trigger plate
43. Safety plunger
44. Safety spring
46. Mainspring pin
47. Trigger plate pin spring pin
48. Trigger plate stud (2)
49. Trigger plate pin spring
50. Left cartridge stop plunger screw
51. Left cartridge stop spring
52. Left cartridge stop plunger
• Permanent factory assembly to other major part. t Parts No's. 16. 17. 26. 27. 28, 30 to be factory disassembled only.
53. Trigger lock plunger
54. Trigger lock spring
55. Action bar lock spring
56. Action bar lock
58. Hammer link pin
59. Hammer pin
60. Trigger pin
61. Trigger lock pin
62. Hammer link
63. Mainspring follower
65. Trigger lock (shown 120' rotated for clarity)
67.' Trigger spring
69. Extractor plunger
70. Right extractor spring
71. Right extractor
73. Firing pin retaining pin
74. Trigger plate pin
75. Firing pin
76. Firing pin spring
77. Left extractor spring
78. Extractor pin
79. Left extractor
The Remington Model 31 slide-action shotgun was introduced in 1931 and remained in production until 1949. It was replaced in 1950 by the Model 870 Wingmaster slide-action shotgun. Made in 12-ga., 16-ga., and 20-ga., and in several grades, the Model 31 shotgun underwent several modifications during the course of production and these affect interchangeability of certain parts within guns of the 3 major series. The original 1931 series had a 'spring-up' barrel lock assembly which was replaced in 1934 with a screw-up assembly,
IOpen action partially, unscrew barrel lock nut (15) to left, turn barrel (1) 90° left, and move it forward from receiver (29). Push out trigger plate pin (74) from right to left and turn gun bottom up. Slide trigger plate (42) forward until trigger plate studs (48) align with slots in sides of receiver and lift trigger plate out.
If gun is cocked, press action bar lock (56) to release trigger plate before moving it forward. Lift out right and left cartridge stops (39 and 40) from inside walls of receiver. Move fore-end (81) rearward until projection at rear of slide (68) is even with trigger plate holes in side of receiver. Pull upward on slide while moving fore-end forward to free action bar (12) from slide.
Holding slide up. disengage it from breechblock (72) and move block fully forward. Swing carrier (41) against block. Move slide until forward end is V*" forward of trigger plate stud slots as shown. Tip up right side of slide (side opposite action bar) and swing slide out sideways from receiver. This is effortless when slide is properly positioned; do not force it
2 With fore-end and breechblock fully forward, swing front end of carrier outward until about perpendicular to receiver and press ends together to disengage pivots. Lift it away. Press ejector (37) fully into its slot and lift out breechblock. Swing ejector rearward and lift from its slot in side of receiver which was made smaller in 1941.
The initial series made from 1931 until 1936 included 12-ga. guns numbered from 0 to 25,000, and 16-ga. and 20-ga. guns numbered from 500,000 to 519.600. The second series produced from 1936 until 1940 included 12-ga. guns numbered from 25,001 to 35,000. and 16-ga. and 20-ga. guns numbered from 519,601 to 530,000. The barrel collar was omitted in this series.
The third scries, made from 1941 until 1949, evidenced several changes over previous models. The Model 31
3 Remove magazine guide screw (13) from top of magazine guide (14-arrow), grasping hand around all parts at front end of magazine tube (18) to prevent loss. Pull barrel lock nut (15) carefully from tube to prevent magazine spring (19) from releasing too fast. Remove magazine spring and magazine follower (20) from tube. Pull magazine guide from tube and slide fore-end assembly forward off tube
4 Drift out firing pin retaining pin (73) from left to right and remove firing pin (75) and firing pin spring (76) from back end of breechblock. Drift extractor pin (78) out bottom of breechblock and remove left extractor (79) and left extractor spring (77). Insert small screwdriver in back of right extractor (71) and pry back extractor plunger (69), then push screwdriver forward, pushing right extractor out of slot. Remove extractor plunger and right extractor spring (70)
was made optionally available in a lightweight version with aluminum trigger plate and receiver. The safety button was made larger and numerous parts were changed, including the action bar lock, hammer, extractor, trigger lock, and trigger plate.
The Model 31 shotgun earned an enviable reputation for reliability during the course of its manufacture. Large numbers were purchased by the government during World War II for use in aircraft gunnery training, for arming guards, and for recreational purposes.
5 With hammer (57) in 'fired' position, drift out mainspring pin (46) and remove safety spring (44) and safety plunger (43) from lower hole. Remove mainspring (64) and mainspring follower (63) from upper hole. Remove safety (45). Drive out hammer pin (59) and push hammer forward and down until rear of hammer link (62) is out of slot in trigger plate Pull hammer link rearward disengaging hammer from action bar lock spring (55). Never lift hammer upward until it has been disengaged from this spring, else spring will become bent or broken. Lift away hammer. Drift out trigger pin (60) and remove action bar lock with spring attached. Trigger lock plunger (53) and trigger lock spring (54) may now be removed. Balance of trigger plate disassembly is obvious
lower, safety spring, and safety plunger, it will facilitate reassembly to insert these parts first. Then, after replacing the mainspring pin, and using a short length of wood dowel to compress safety plunger, re-insert safety. This method is converse to logical procedure—that is, first replacing the safety, then spring-loaded parts ■
Back in August 1899, John M.
Browning patented a single-shot, bolt-action, rimfire rifle which Winchester brought on the market as the Model 1900. This low-priced but serviceable cal. .22 arm set the pattern for many similar rifles introduced through the years by various U. S. and foreign manufacturers.
Remington's first rifle of this type was not introduced until 1931. Designated Model 33, this bolt-action takedown rifle was based on patents granted to Remington engineer C. C. Loomis. It fires .22 short, long, and long rifle standard-velocity and high-speed cartridges. A Remington brochure published in 1934 called it "the finest cal. .22 single-shot rifle ever offered at the price."
According to this brochure, the retail price of the Standard Grade Model 33 fitted with a white metal bead front sight and U-notch open rear sight was $5.50. When equipped with a Lyman No. 55 aperture rear sight, the rifle retailed for $7.70. There was also an NRA Junior Target Grade of the Model 33. This rifle was fitted with a Patridge-type blade front sight, Lyman No. 55 aperture receiver sight, sling swivels, and a l"-wide adjustable leather sling. It was offered at $10.30 retail.
All grades of the Model 33 have a 24" round barrel and an American walnut stock with a pistol grip. Most metal parts are blued. The action works smoothly, and the firing pin is cocked manually after closing the bolt. No safety lever is provided, but the firing pin can be pulled back and rotated to a safe position. An automatic rebounding lock also is provided. This is designed to prevent discharge if the firing pin is hit accidentally.
Unlike many bolt-action rifles chambered for .22 rimfire ammunition, the Model 33 has dual-opposed locking lugs. One of these lugs is the root of the bolt handle. The design of this little 4'/2-lb. rifle is generally excellent.
In 193(f, the Model 33 was replaced by the Remington Model 41 .22 rimfire rifle.
1 Before disassembly, open the action to make sure the rifle is unloaded. Lift bolt handle, pull trigger (26) and remove bolt assembly from receiver (18). Loosen takedown screw (25), and remove stock (24).
4 After driving out firing pin extension pin (12) from left to right, remove firing pin extension (11), retractor spring (19), and retractor spring plunger (20) from firing pin (10). Mainspring (14) and mainspring plunger (15) are permanently staked in place inside the firing pin. Disassembly of these parts should not be attempted.
2 Drive out extractor pin (7), and remove extractor (6), extractor spring plunger (9), and extractor spring (8). Drive out ejector pin (5), and remove ejector (4) from front of bolt (2).
3 Drive out bolt extension sleeve pin (3), and pull firing pin assembly from bolt.
5 Drive out trigger and sear pins (29) and (22). Remove trigger (26), trigger spring (30), and sear (21) from bottom of receiver.
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