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item for every model listed below is currently in stock, we are dealing with obsolete models as much as 60-plus years out of date. 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.

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 Limited parts available. Call 636-937-6401 for availability and price.

Model L No parts available.

Models 10, 14, 15, 25, 125 Limited parts available. Call 636-937-6401 for availability and price.

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
S104 peep sight $75 (26B) *
S101 front sight $35 (26B) *
S121 front sight $25 (26C) *
S102 open rear sight $35 (26C) *

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

Model 43
Complete bolt $75 *
Firing pin $18 *
Extractor $6 *
Stock $45 *
Magazine $35
Lyman®17-A front globe sight with 7 inserts $28
S104 peep sight $75 *

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: $28


Item: DSWIV $28/pr


Item:  LYM17A  $28.  Lyman® 17-A globe front target sight with 7 apertures, fits Mossberg target rifles with dovetail notch, .494 height.

Models 42A, S42A, 42AS, 42ABT
Complete bolt $75 *
Firing pin $18
Stock $45
Magazine $35
S101 front sight $35 *
S104 peep sight $75 *

Models 35A, 35B, 45A, 45AC, 46A, 46AT, 46BT
Complete bolt $75 *
Firing pin $18
Extractor $12
Magazine (tubular for 45, 46 series) $25
S101 front sight $35 *
S104 peep sight $75 *

(From 1940 Mossberg product catalog)

Models 42B, 42C, 42M, 42M(a), 42M(b), 42MB, 42M(c), 42M(c), 42TR
Complete bolt $75 *
Firing pin $18
Extractor $12
Stock $45
Stock forend (all 42M) $25 *
Barrel Band $8 (for "M" models)
Magazine $35
S101 front sight (42B, all 42M) $35 *
S121 front sight (42C, 42TR) $25 *
S104 peep sight (42B, 42M, 42M(a) $75 *
S100 peep sight (42M(b)) $65; S130 peep sight (42M(c)) $75
S102 open barrel sight $35 *

(From 1946 Mossberg product catalog)

Models 44B, 44US, 44US(a), 44US(b), 44US(c), 44US(d)
Complete bolt $75 *
Firing pin $18
Stock $45 (military surplus model)
Magazine $35
Trigger guard $14
S106 front sight $35 *
S104 peep sight (44B, 44US(a)) $75 *
S100 peep sight (44US(b), 44US(c)) $75
S130 peep sight (44US(d)) $75
Lyman®17-A front globe sight with 7 inserts $28
Military oil leather sling $27
Military fixed sling swivels (44US military only) set of two $8
Detachable sling swivels set of two $28

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.

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) = $12/pair

(From 1938 Mossberg product catalog)

Models 45B, 46B, 46B(a), 46B(b), 46M, 46M(a), 46M(b)
Complete bolt $75 *
Firing pin $18
Extractor $12
Stock $45
Stock forend (all 46M) $25 *
Barrel Band (all 46M) $8
Magazine $25
S101 front sight $35 *
S102 open barrel sight (45B) $35 *
S104 peep sight (46B, 46M) $75 *
S130 peep sight (46B(a), 46B(b), 46M(a), 46M(b)) $75
Detachable sling swivels set of two $28

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

Models 51M(a), 51M(b)
Complete bolt $65 (no operating handle)
Firing pin $18
Extractor $6
Detachable sling swivels set of two $28
Stock $45 *
Stock forend $25 *
Magazine (tubular) $25
S101 front sight $35 *
S102 open barrel sight $35 *
S104 peep sight (51M(a)) $75 *
S100 peep sight (51M(b)) $75

Models 140B, 140K, 142A, 142K
Firing pin $14
Extractor $4
Fold-down stock forend $33 (142A, 142K)
Magazine (10 round) $27
S106 front sight (140B) $35 *
S109 front sight $25 *
S133 front sight (140K, 142K) $8
S137/S134 sporting rear sight (140K, 142K) $25 *
S130 receiver peep sight $75
S108 receiver peep sight $75 *
Detachable sling swivels set of two $28 (140 series)
Fixed sling swivels set of two $12 (142 series)


Models 144, 144LS, 144LS-A, 144LS-B
Firing pin $14
Extractor $4
Stock (144LS-B only) $45
Magazine (10 round) $27
S106 front sight (144, 144LS) $35 *
S130 receiver peep (144) $75
S331 receiver peep (144LS-A, 144LS-B) $75 *
Lyman 17-A front globe sight with inserts $28
Front hand stop assembly with swivel = $18

Models 146B, 146B(a)
Firing pin $14
Extractor $12
Stock $45 *
Magazine (tubular) $25
S101 front sight $35 *
S137 open barrel sight $25 *
S107 selective rear sight $35 *
S130 peep sight $75
Detachable sling swivels set of two $28

Models 151K, 151M, 151M(a), 151M(b), 151M(c)
Complete bolt $65
Operating handle only $6
Firing pin $18
Extractor $9
Stock (no 151K) $45 *
Stock forend (all 151M)$25 *
Barrel Band (all 151M) $8
Magazine (tubular) $25
S101 front sight (all 151M)$35 *
S180 front sight (151K) $8
S134 open barrel sight (151K) $25 *
S107 selective rear sight (all 151M) $35 *
S130 peep sight (all 151M) $75
Detachable sling swivels set of two $28 (151M series)

Models 152, 152K
Complete bolt $65
Operating handle only $6
Firing pin $18
Extractor $9
Fold-down stock forend $33
Magazine (10 round) $27
S109 front sight (152) $25 *
S133 front sight (152K) $8
S134 sporting rear sight (152K) $25 *
S108 receiver peep sight (152) $75 *


Item:  FTRAMP Replacement ramp front sight $8
Fixed blade elevated ramp front sight used on 1960s and 1970s Mossberg 22 rifles will fit virtually all Mossberg .22s from 1935-1986 – attaches with single 8 x 40 screw (provided) and dovetail adapter (provided) for use on those rifles with dovetail notch.  This is an inexpensive option to those costly and hard to find front target sights.

Models 220K, 320K, 320KA, 320B, 320BA, 320BB, 320TR, 321B, 321K
Complete bolt $55
Firing pin $14 (later style only)
Extractor $4
Front ramp replacement sight $8
S320 deluxe front sight $35 *
S134/S141 sporting rear sight $25
S330 peep sight $75 *


(From 1959 Mossberg dealer spiff)
Models 240C, 340B, 340K, 340BA, 340BB, 340KA, 340KB, 340TR, 341, 344, 344K
Complete bolt $55
Firing pin $14 (later style only)
Extractor $4
Stock $45 *
Magazine (10 round) $27
Front ramp replacement sight $8
S320 deluxe front sight $35 *
S134/S141 sporting rear sight $25
S330 peep sight $75 *


Item: R943 trigger guard $14 (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 $55
Firing pin $14 (later style only)
Extractor $4
Fold-down stock forend $33
Magazine (10 round) $27
S109 front sight (342) $25 *
Front ramp replacement sight (342K, 342KA, 342KB, 342KC) $8
S134 sporting rear sight (342K, 342KA, 342KB, 342KC) $25 *
S108 receiver peep sight (342) $75 *

Models 246K, 346B, 346BA, 346K, 346KA, 346KB, 346KC
Complete bolt $75 *
Firing pin $14 (later style only)
Extractor $12
Stock $45 *
Magazine (tubular) $25
S320 deluxe front sight (346B, 346BA) $35 *
Front ramp replacement sight (246K, 346K, 346KA, 346KB, 346KC) $8
S141 sporting rear sight (246K, 346K, 346KA, 346KB, 346KC) $25
S330 receiver peep sight (346B, 346BA) $75 *


Item:  RCAP  $9  Receiver cap breech plug for 1960s through 1980s hammerless rifles.
Top photo shows cap for bolt action models 220, 320, 321, 340, 342, 344, 346, 640, 740.  Bottom photo shows cap for semi-autos 250, 350, 251, 351, 352, 353, 377, 380

Models 250C, 250CA, 250CB, 350K, 350KA, 350KB, 350KC
Complete bolt $65
Operating Handle Only $6
Firing pin $18
Extractor $9
Stock $45 *
Magazine (10 round) $27
Front ramp replacement sight $8
S134/S141 sporting rear sight $25

Models 251K, 251C, 351K, 351KA, 351KB
Complete bolt $65
Operating Handle Only $6
Firing pin $18
Extractor $9
Stock $45 *
Magazine (tubular) $25
Front ramp replacement sight $8
S134/S141 sporting rear sight $25

Models 352, 352K, 352K-A, 352K-B, 353, 453
Complete bolt $65
Operating Handle Only $6
Firing pin $18
Extractor $9
Stock $45 *
Fold-down stock forend $33
Magazine (10 round) $27
S109 front sight (352) $25
Front ramp replacement sight (352K, 352KA, 352KB) $8
Ramp front sight (353, 453) $8
S141 sporting rear sight (352K, 352KA, 352KB) $25
S108 receiver peep sight (352) $75 *

Models 377, 380
Complete bolt $65
Operating Handle Only $6
Firing pin $18
Extractor $9
Stock $45
Trigger Guard $6
Magazine (tubular) $25
open rear sight $25
Scope base $10

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


Models 400, 400A, 402, 402A
Complete bolt $65
Firing pin $18
Extractor $6
Magazine (tubular) $25
Front ramp replacement sight $8
open rear sight $25


Models 620K, 620KA, 720
Complete bolt $65
Firing pin $14 (later style only)
Extractor $9
Stock $45 *
Front ramp replacement sight $8
S139/S141 sporting rear sight $25

Models 640K, 640KS, 640KA, 640KB, 640KC, 640KD, 642K, 740T
Complete bolt $65
Firing pin $14 (later style only)
Extractor $9
Stock $45 *
Fold-down forend (642 series) $33
Magazine (5 round) $27
Front ramp replacement sight $8
S141/S144 sporting rear sight $25

Models 702 New "Plinkster"
Magazine (10 round) $15

* 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) $14 * 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

Models 42, 43, 44
All variants 22 S-L-LR
7-shot w/short adapter rod
ITEM: R118 $35



Models 140, 142, 144
152, 250, 350, 352, 353
10-shot 22LR
ITEM 980M $27

Models 240, 340, 342, 344
10-shot 22LR
ITEM: 293M $27

Models 640, 740
All variants .22 magnum
5-shot 22WMR
ITEM:  22WMR $27



Model 702 Plinkster
10-shot 22LR
ITEM: M702 $15

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