Due to heavy seasonal volume international shipments will be suspended until early 2017.

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Schematic Image

*Part Key 'NI' stands for 'Not Illustrated'.

Image Part Key Product # Description Price Add To Cart
Mossberg 320B, 320BA, 320K, 320KA, 320TR, 321B, 321K Schematic W/ Parts List
PDF0284 Mossberg 320B, 320BA, 320K, 320KA, 320TR, 321B, 321K Schematic W/ Parts List $1.50 Buy Now
Peep Disc
S1 533210B Peep Disc $5.45 Sold Out
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S10 41430A Base Screw $2.45 Sold Out
Elevation Lock Screw
S11 41450B Elevation Lock Screw $2.45 Buy Now
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S12 41460A Indicator Plate Screw $2.45 Sold Out
Indicator Plate
S13 41470B Indicator Plate $2.45 Buy Now
Sight Click Ball, #BB-3 (2 Req'd)
S14 41480A Sight Click Ball, #BB-3 (2 Req'd) $2.95 Buy Now
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S15 41490A Click Spring $2.45 Sold Out
Elevation Screw
S16 41510B Elevation Screw $4.40 Buy Now
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S17 41530A Windage & Elevation Bracket $10.15 Sold Out
S18 41550A Hood $4.85 Sold Out
Bead & Aperture
S19 41560A Bead & Aperture $5.20 Buy Now
Windage Slide
S2 41360A Windage Slide $4.20 Buy Now
Bead & Aperture Screw
S20 41570A Bead & Aperture Screw $2.45 Buy Now
Sight Base, Replacement
S21 41600A Sight Base, Replacement $4.40 Sold Out
Ramp Base
S22 41610A Ramp Base $8.80 Buy Now
Front Sight Base Screw
S23 41620D Front Sight Base Screw $2.45 Buy Now
Windage Screw
S3 41370B Windage Screw $4.40 Buy Now
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S4 41380C Windage Screw Retaining Ring $2.45 Sold Out
Windage Clip
S5 41390B Windage Clip $2.45 Buy Now