Mossberg® .22 Rifle Parts

The following listing includes the most commonly requested parts for the most commonly owned Mossberg® .22 caliber rifles. We carry many more parts for each of these models than we would have room to list here. On the flip side, while we try to be sure that every item for every model listed below is currently in stock, we are dealing with obsolete models as much as 60-plus years out of date. Original sights and bolts have become very scarce recently.  Calling us at 636-937-6401 is the best way to assure that we have what you are looking for. You may also inquire by e-mail to vic@havlinsales.com. Please note that while models may be grouped here for pricing similarity and space, each model is distinctly unique and we must have the exact model number in order to fill your request, i.e., Model 42 and Model 42A are very different models. Parts may be good condition used or new production, and depending on item, fitting may be required by a qualified gunsmith to insure proper function and safety.

Back in Stock! 44US Mags

Models 42, 43, 44
All Variants 22 S-L-LR
7-round with short adapter rod
Plus - New 15-round designed for the Targo models
(Will fit all 42, 43, 44US actions)
ITEM: R118 (7 rd) $35 (3 for $100)
ITEM: R11815 (15 rd) $40 (cannot ship to CA, MA, NY)

New Item!
Mossberg 22 Target Peep sight, new manufacture with deluxe aperture disc, adjustable windage and elevation, brushed alloy finish, replaces S100, S130, S108 and S331 Mossberg sights without modification. Also replaces S104 or No 4 peep sight – may require stock modification to accommodate mounting bracket. Screws provided.
Item: OM22 - Introductory Price $65


OM 22 Peep Sight



OM 22 mounted on Mossberg 152

New Reference Photo Gallery!
The two most-requested parts for .22 rifles are firing pins and clip magazines.  For your convenience, we have added photo galleries of the .22 rifle firing pins and magazines that we currently stock.  Please view these pages if you need a firing pin or magazine. 

.22 rifle firing pin photo gallery

.22 rifle clip magazine photo gallery

* Not Always in Stock

Models B, K, M, S, R No parts available.

Model L No parts available.

Brownie Pistol No parts available.

Models 10, 14, 15, 25, 125 No parts available.

Models 25BT, 25ABT, 20, 21, 24, 30, 34, 40, 44 Limited parts available. Call 636-937-6401.

Models 26B, 26C
Firing pin $18 *
Extractor $6
Stock $45
New! OM 22 peep sight $65

Models 35, 42, 46 Limited parts available. Call 636-937-6401.

Model 43
Firing pin $18 *
Extractor $6 *
Magazine $35 (7-rd)
Magazine $40 (15-rd)
Lyman®17-A front globe sight with 7 inserts $32
New! OM 22 peep sight $65

BEST SELLER! Mossberg detachable sling swivels for .22 rifles. Used on all .22 sporting and target models from 1936-1957, these are newly manufactured detachable swivels which twist and lock into the raised swivel bases on the Model 42, 43, 44, 45, 46, 51, 140, 144, 146 and 151 series models. Stop paying a fortune on auction sites for used or broken swivels. These are brand new, blue, steel swivels. Set of two: $38


Item: DSWIV $38/pr


Item:  LYM17A  $32.  Lyman® 17-A globe front target sight with 7 apertures, fits Mossberg target rifles with dovetail notch, .494 height.

Models 42A, S42A, 42AS, 42ABT
Firing pin $18
Magazine $35 (7-rd)
Magazine $40 (15-rd)
New! OM 22 peep sight $65

Models 35A, 35B, 45A, 45AC, 46A, 46AT, 46BT
Firing pin $18
New! OM 22 peep sight $65

(From 1940 Mossberg product catalog)

Models 42B, 42C, 42M, 42M(a), 42M(b), 42MB, 42M(c), 42M(c), 42TR
Firing pin $18
Extractor $12 *
Trigger Guard $18
Magazine $35 (7-rd)
Magazine $40 (15-rd)
New! OM 22 peep sight $65
Detachable sling swivels set of 2 $38

(From 1946 Mossberg product catalog)

Models 44B, 44US, 44US(a), 44US(b), 44US(c), 44US(d)
Firing pin $18
Extractor $12 *
Magazine $35 (7-rd)
Magazine $40 (15-rd)
Trigger guard $18
New! OM 22 peep sight $65
Lyman®17-A front globe sight with 7 inserts $32
Military oil leather sling $32
Detachable sling swivels set of two $38

BEST SELLER!  MOSSBERG .22 SCOPE MOUNT 
Now available! No gunsmithing required!  Use any diameter scope!    

Mossberg side mount and screws – ONLY $22.50

For models 26B, 26C, 42A, 42B, 42C, 42M (all variants), 43, 44US (all civilian variants), 46A, 46B and 46M (all variants) and most Wards-Westernfield rifles side-tapped on 1-5/8” centers (made by Mossberg).  Mount conforms to curvature of receiver and features Weaver style top platform.  Note:  Aprox 30% of military marked 44US rifles are not drilled and tapped for scopes.  Please check your receiver. We can provide D & T specs if you wish to drill and tap yourself.

Will center any diameter scope directly over the barrel – no longer limits you to ¾” tubes.  Quality mount allows you to keep the iron sights in place.  Remove bolt cover, if present, to allow bolt to clear mount base. Add rings and scope of your choice.  Comes with two mounting screws.  $22.50 per mount. Ask about rings in high/medium/low rise for 1” and 30mm scopes for $12 extra, or use rings that came with your scope.  

M22 Super Side Scope Mount = $22.50
Scope rings (please specify high, medium or low rise, 1” or 30 mm) = $15/pair

(From 1938 Mossberg product catalog)

Models 45B, 46B, 46B(a), 46B(b), 46M, 46M(a), 46M(b)
Firing pin $18
New! OM 22 peep sight $65
Detachable sling swivels set of two $38

Models 50, 51M Limited parts available. Call 636-937-6401.

Models 51M(a), 51M(b)
Firing pin $18
Extractor $9
Detachable sling swivels set of two $38
Inner mag tube $28
New! OM 22 peep sight $65

Models 140B, 140K, 142A, 142K
Firing pin $14
Extractor $4
Magazine (10 round) $28
New! OM 22 peep sight $65
Detachable sling swivels set of two $38 (140 series)

New item – forearm extension

New unfinished walnut, fits 142, 152, 342 352, 353, $32
You final fit and stain or paint black, hardware not included


Models 144, 144LS, 144LS-A, 144LS-B
Firing pin $14
Extractor $4
Magazine (10 round) $28
New! OM 22 peep sight $65
Lyman 17-A front globe sight with inserts $32

Models 146B, 146B(a)
Firing pin $18
New! OM 22 peep sight $65
Detachable sling swivels set of two $38

Models 151K, 151M, 151M(a), 151M(b), 151M(c)
Operating handle only $6
Firing pin $18
Extractor $9
New! OM 22 peep sight $65
Detachable sling swivels set of two $38 (151M series)
Inner mag tube $28

Models 152, 152K
Operating handle only $6
Firing pin $18
Extractor $9
Walnut forearm extension $32
Magazine (10 round) $28
New! OM 22 peep sight $65



Models 220K, 320K, 320KA, 320B, 320BA, 320BB, 320TR, 321B, 321K
Complete bolt $65
Firing pin $14 (later style only)
Extractor $4
Trigger guard long $18
Trigger guard short $6
S141 sporting rear sight $25


(From 1959 Mossberg dealer spiff)
Models 240C, 340B, 340K, 340BA, 340BB, 340KA, 340KB, 340TR, 341, 344, 344K
Complete bolt $65
Firing pin $14 (later style only)
Extractor $4
Trigger guard long $18
Trigger guard short $6
Magazine (10 round) $28
S141 sporting rear sight $14


Item: R943 trigger guard $18 (top, fits many models from 1960-1980)
Item: R250 trigger guard $6 (center, fits New Haven and models with shorter guard)
Item: R380 trigger guard $6 (bottom, fits Models 353, 377, 380 and late semi-autos)


Red/Green fire/safe peg indicators used on all Mossberg 22s and bolt action shotguns from 1938-1986. $1 each
Item: REDPEG $1
Item: GRNPEG $1

Models 342, 342K, 342KA, 342KB, 342KC
Complete bolt $65
Firing pin $14 (later style only)
Extractor $4
Walnut forearm extension $32
Trigger guard long $18
Trigger guard short $6
Magazine (10 round) $28
S141 sporting rear sight (342KB, 342KC) $14 *
NEW!  OM 22 peep sight (342 only) $65

Models 246K, 346B, 346BA, 346K, 346KA, 346KB, 346KC
Firing pin $14 (later style only)
Trigger guard long $18
Trigger guard short $6
S141 sporting rear sight (246K, 346K, 346KA, 346KB, 346KC) $14

Models 250C, 250CA, 250CB, 350K, 350KA, 350KB, 350KC
Complete bolt $65
Operating Handle Only $6
Firing pin $18
Extractor $9
Trigger guard long $18
Trigger guard short $6
Magazine (10 round) $28
S141 sporting rear sight $14

Models 251K, 251C, 351K, 351KA, 351KB
Complete bolt $65
Operating Handle Only $6
Firing pin $18
Extractor $9
Trigger guard long $18
Trigger guard short $6
S141 sporting rear sight $14
Inner mag tube $28

Models 352, 352K, 352K-A, 352K-B, 353, 453
Complete bolt $65
Operating Handle Only $6
Firing pin $18
Extractor $9
Walnut forearm extension $32
Trigger guard long $18
Trigger guard short $6
Magazine (10 round) $28
S141 sporting rear sight (352K, 352KA, 352KB) $14
OM 22 peep sight $65 (352 only)

Models 377, 380
Complete bolt $65
Operating Handle Only $6
Firing pin $18
Extractor $9
Trigger Guard $6
open rear sight $14
Scope base $10
Inner mag tube $28

Models 333, 430, 432 Uniline® Models
Limited parts available.
Please call 636-937-6401
for price & availability.

Models 400, 400A, 402, 402A
Firing pin $18
Right Extractor $6
Left Extractor $6
Ejector $6
open rear sight $14


Models 620K, 620KA, 720
Firing pin $14 (later style only)
Extractor $9
Trigger guard long $18
Trigger guard short $6
S141 sporting rear sight $14

Models 640K, 640KS, 640KA, 640KB, 640KC, 640KD, 642K, 740T
Firing pin $14 (later style only)
Extractor $9
Trigger guard long $18
Trigger guard short $6
Magazine (5 round) $28
S141/S144 sporting rear sight $14

Models 702 New "Plinkster", 722 Tac-22
Magazine (10 round) $18
Magazine (25 round) $28 cannot ship to CA, IL, MA, MD, NJ, NY

* Not Always in Stock.

.22 Rifle Firing Pins

1.  Models 26B, 26C $18*
2.  Models 42A, 42B, 42C, 42M (all variants), 43, 43B, 44US (all variants) $18 (will not fit older Model 42 pre-master action or “long-bolt” rifles).
3.  Models 45A, 45B, 46A, 46B or 46M (all variants) $18 (will not fit older 45 or 46 pre-master action or “long-bolt” rifles). 
4.  Models 140, 142, 144 (all variants) $14
5.  Models 146B, 146B(a) $18 * not always in stock
6.  Models 320, 340, 342, 346 (variants that take new style pin) $14
7.  Models 50, 51, 51M (all variants) $18
8.  Models 151K, 151M (all variants) 152, 152K, 250K $18
9.  Models 250C, 350K, 350KA, 351K, 351KA, 352, 352K, 352KA, 352KB $18
10.  Models 250CA, 250CB, 251, 350KB, 351KB, 351KC, 352KC, 353, 377, 380 $18
11.  Model 400, 400A, 402, 402A “Palomino” $18
12.  Models 620, 640, 740 “Chuckster” (variants that take new style pin) $14
 

.22 Rifle Box Magazines

Back in Stock! 44US Mags

Models 42, 43, 44
All variants 22 S-L-LR
7-shot with short adapter rod
Plus - New 15-round designed for the Targo models
(Will fit all 42, 43, 44US actions)
ITEM: R118 (7 rd) $35 (3 for $100)
ITEM: R11815 (15 rd) $40 (cannot ship to CA, MA, NY)




Models 140, 142, 144
152, 250, 350, 352, 353
10-shot 22LR
ITEM 980M $28

Models 240, 340, 342, 344
10-shot 22LR
ITEM: 293M $28

Models 640, 740
All variants .22 magnum
5-shot 22WMR
ITEM:  22WMR $28



Model 702 Plinkster
10-shot 22LR
ITEM: M702 $18


New! Model TAC-22 Tactical 25-round 22LR
ITEM: TAC22 $28 cannot ship to CA, IL, MA, MD, NJ, NY

Sight Accessories 

ITEM:  HOOD  $6
Fits .22 front target sights S101 and S106 used 1938-1957
Does not fit MID550 sight or M44 military fixed blade sight

NEW! ITEM:  AP104 $6
Just arrived – peep discs for the No. 4, S104 peep sight with original odd-ball 8 x 50 threads.  New mfg USA.  Target aperture.

ITEM:  AP130  $6
Last of the original peep discs for the S130 sights with smooth shaft and retaining clip.

NEW! ITEM:  AP100108  $6
Deluxe aperture disc fits S100, S108 peep sights with 8 x 40 threads.  New mfg USA.

ITEM:  AP330331  $6
Last of the original peep discs for the S330, S331, Lyman 57, Redfield, Williams and other makers with standard 12 x 40 threads.

ITEM:  ELEV22 $2
Fits most sporting barrel sights 1958-1986

NEW! ITEM: MID550  $14
Originally used on hi-power rifles, this deluxe front ramp sight uses one 8 x 40 screw (provided) to attach base ramp, then gold beaded dovetail insert is drifted in slot.  Height from barrel to center of bead is .550” – may substitute for S101 and S106 IF peep sight is used.

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