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Questions & Answers
Will these fit a 940 pro Field? Expert Answer

The Lancer Systems Mossberg 590/930 Magazine Extension will not fit a Mossberg 940.

by Hunter, Gear Expert, February 3, 2023
Does the 4-shot come with a Extension tube clamp? If not, do you have one specifically for this model? Expert Answer

The Lancer Shotgun Barrel Extension Clamp at the link below will work with the Lancer Systems Mossberg 590/930 Magazine Extension. The Lancer Systems Mossberg 590/930 Magazine Extension does not come with the extension clamp.
https://www.opticsplanet.com/lancer-shotgun-extension-clamp-with-no-rail-lsx-cp-nr.html

by Hunter, Gear Expert, August 10, 2022
Customer Reviews
Helpful Negative Review
Ordered this magazine extension for a mossberg 930, but the rubber on the magazine tube doesn’t allow the magazine tube to fit as close to the barrel as it needs to. Also the thread pitch is wrong. Very disappointed
1/2 found this helpful
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Product Info for Lancer Systems Mossberg 590/835 Magazine Extension

Lancer's carbon fiber LSX extended shotgun magazine tubes are the ultimate increased capacity solution for hunting, competition, and home defense. Designed to install in place of the factory magazine tube cap, these smooth-feeding extension tubes provide increased capacity for most popular shotgun models while adding considerably less swing weight than traditional aluminum extension tubes.image

Includes an extra-long spring which can be cut to the desired length during installation. Extension tube clamps are available for tubes that extend beyond the end of the barrel.

Specifications for Lancer Systems Mossberg 590/835 Magazine Extension:

Manufacturer: Lancer Systems
Color: Black
Fabric/Material: Carbon Fiber
Gun Model: Mossberg Model 590, Mossberg Model 835
Dimensions: 12 x 1.5 x 1.5 in
Gauge: 12
Height: 1.5 in

Features of Lancer Systems Mossberg 590/835 Magazine Extension

  • Precision machined aluminum adapter nut
  • Lightweight carbon-fiber tube

Package Contents:

  • Lancer Systems Mossberg 590/835 Magazine Extension

Lancer Systems Mossberg 590/835 Magazine Extension Orderable Models

List of Orderable Models

  • Lancer Systems Mossberg 590/835 Magazine Extension, Black, 3-Round, 12 Gauge, LSX-3X-M , MPN: LSX-4X-R , UPC: 738435616625 , Code: 7UD-MZX-LMBSGME-LSX-3X-M-3RD
  • Lancer Systems Mossberg 590/835 Magazine Extension, Black, 5-Round, 12 Gauge, LSX-5X-M , MPN: LSX-6X-R , UPC: 738435616649 , Code: 7UD-MZX-LMBSGME-LSX-5X-M-5RD
  • Lancer Systems Mossberg 590/835 Magazine Extension, Black, 6-Round, 12 Gauge, LSX-6X-M , MPN: LSX-7X-R , UPC: 738435616656 , Code: 7UD-MZX-LMBSGME-LSX-6X-M-6RD
  • Lancer Systems Mossberg 590/835 Magazine Extension, Black, 7-Round, 12 Gauge, LSX-7X-M , MPN: LSX-8X-R , UPC: 738435616663 , Code: 7UD-MZX-LMBSGME-LSX-7X-M-7RD
  • USED Lancer Systems Mossberg 590/835 Magazine Extension, Black, 7-Round, 12 Gauge, LSX-7X-M, EDEMO2, Condition Fair, Used , MPN: LSX-7X-M-EDEMO2 , Code: 7UD-MZX-LMBSGME-LSX-7X-M-7RD-EDEMO-US-D
  • Lancer Systems Mossberg 590/835 Magazine Extension, Black, 2-Round, 12 Gauge, LSX-2X-M , MPN: LSX-3X-R , UPC: 738435616618 , Code: 7UD-MZX-LMBSGME-LSX-2X-M-2RD

Lancer Systems Mossberg 590/835 Magazine Extension Unavailable & Discontinued Models

List of Unorderable Models

  • USED Lancer Systems Mossberg 590/835 Magazine Extension, Black, 2-Round, 12 Gauge, LSX-2X-M, EDEMO1, Used, Condition Like New, Inspect and Rebox , MPN: LSX-2X-M-EDEMO1 , Code: 7UD-MZX-LMBSGME-LSX-2X-M-2RD-EDEMO-RE-A
  • USED Lancer Systems Mossberg 590/835 Magazine Extension, Black, 7-Round, 12 Gauge, LSX-7X-M, EDEMO1, Condition Fair, Other , MPN: LSX-7X-M-EDEMO1 , Code: 7UD-MZX-LMBSGME-LSX-7X-M-7RD-EDEMO-OT-D
  • USED Lancer Systems Mossberg 590/835 Magazine Extension, Black, 5-Round, 12 Gauge, LSX-5X-M, EDEMO1, Used, Condition Like New, Inspect and Rebox , MPN: LSX-5X-M-EDEMO1 , Code: 7UD-MZX-LMBSGME-LSX-5X-M-5RD-EDEMO-RE-A
  • USED Lancer Systems Mossberg 590/835 Magazine Extension, Black, 5-Round, 12 Gauge, LSX-5X-M, EDEMO2, Condition Parts Only/Salvage, Wrong Product , MPN: LSX-5X-M-EDEMO2 , Code: 7UD-MZX-LMBSGME-LSX-5X-M-5RD-EDEMO-WP-F
  • USED Lancer Systems Mossberg 590/835 Magazine Extension, Black, 4-Round, 12 Gauge, LSX-4X-M, EDEMO1, Used, Condition Like New, Inspect and Rebox , MPN: LSX-4X-M-EDEMO1 , Code: 7UD-MZX-LMBSGME-LSX-4X-M-4RD-EDEMO-RE-A
  • Lancer Systems Mossberg 590/835 Magazine Extension, Black, 4-Round, 12 Gauge, LSX-4X-M , MPN: LSX-5X-R , UPC: 738435616632 , Code: 7UD-MZX-LMBSGME-LSX-4X-M-4RD
  • Lancer Systems Mossberg 590/835 Magazine Extension, Black, 8-Round, 12 Gauge, LSX-8X-M , MPN: LSX-2X-ST , UPC: 738435616670 , Code: 7UD-MZX-LMBSGME-LSX-8X-M-8RD
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