Magazine Extension Assembly

Magazine Extension Assembly
Carlson's Shotgun Magazine Extensions
For Home Defense, Tactical and Law Enforcement Use

Add firepower to your favorite shotgun. These magazine extensions are constructed of blued solid steel and come with spring, base clamp with swivel stud (included) to work with quick detachable swivel (not included), and a high visibility follower (some extensions require factory follower and will not come with one). The threaded tube replaces you magazine cap and gives you the ability to add extra rounds to you magazine. Easy to follow instructions are included. The magazine extension tube is great for home protection, competition shooting, and law enforcement. See chart below for the make/model and the magazine capacity.

Overall Length of Extensions: 04500 (8.25-inch), 04501 (10.5-inch), 04502 (6.25-inch), 04503 (6.375-inch), 04504 (14.25-inch), 04505 (8.25-inch), 04506 (6.25-inch), 04507 (8.25-inch), 04508 (5-inch), 04510 (14.25), and 04511 (8.5-inch), 04512 (8.38-inch), 04513 (8.13-inch), 04514 (14.13-inch), 04515 (8.13-inch), 04516 (14.13-inch), 04517 (8.5-inch), 04518 (14.25-inch), 04519 (8.5-inch), 04520 (14.25-inch), 04521 (19.25-inch), 04522 (19.25-inch), 04524 (7.5"w/spring), 04530 (8.5-inch), 04531 (8.5-inch), 04532 (8.25-inch)

**Magazine round count is for the total capacity using 2 3/4-inch shells including 1 in the chamber, When using 3" shells you lose 1 shell capacity. When using 3 1/2" shells you lose 2 shell capacity.**

Example: 8 shot extension= is 7 (2.75" shells) in the extension and 1 in the chamber, 6 (3" shells) in the extension and 1 in the chamber, or 5 (3 1/2" shells) in the extension and one in the chamber.

**Remington extensions require removal of tabs / detent in magazine tube on newer model shotguns**
  • Item#
    Description
    Price
    Quantity
  • 04500
    12ga - Remington 870/1100/11-87/Versa Max/V, - 8-Shot
    86.500000
  • 04500C
    12ga - Magazine Ext Sling Clamp
    16.950000
  • 04500S
    12ga - Magazine Ext Replacement Spring
    16.500000
  • 04501
    12ga - Benelli M1, M2, Super Black Eagle I, II, & III - 8-Shot
    86.500000
  • 04502
    12ga - Benelli Nova/Super Nova, CZ 912, and Beretta Extrema - 7-Shot
    85.500000
  • 04503
    12ga - Winchester 1200/1300 - 7-Shot
    85.500000
  • 04504
    12ga - Remington 870/1100/11-87/Versa Max/V3 - 10-Shot
    89.500000
  • 04505
    12ga - Winchester SX2, SX3, & SX4 / Browning Gold & Silver - 8-Shot
    89.500000
  • 04506
    12ga - Remington 870/1100/11-87/Versa Max/V3, 7-shot
    85.500000
  • 04507
    12ga - Benelli Nova/Super Nova/ CZ  912/Beretta Extrema & 1301 8 Shot
    86.500000
  • 04508
    12ga - Benelli M4 - 7-Shot
    85.500000
  • 04510
    12ga - Benelli Nova/Super Nova/ CZ 912/Beretta Extrema & 1301 10 Shot
    89.500000
  • 04511
    12ga - CZ 612 (612 Only) 8-Shot (will NOT fit HC-P models)
    86.500000
  • 04512
    12ga - Beretta A-300 Extrema, A-400 Extreme, TX4 Storm (only), 8 Shot (Not Unico)
    89.500000
  • 04513
    12ga - Stoeger M3000/3500 & P3000/3500, 8-Shot
    86.500000
  • 04514
    12ga - Stoeger M3000/3500 & P3000/3500, 10-Shot
    89.500000
  • 04515
    12ga - Mossberg 590/835/930/935/5500/9200, 8-Shot
    86.500000
  • 04516
    12ga - Mossberg 590/835/930/935/5500/9200, 10-Shot
    89.500000
  • 04517
    12ga - Franchi Affinity and Intensity - 8 Shot
    86.500000
  • 04518
    12ga - Benelli M1, M2, Super Black Eagle I, II, & III 10-Shot
    89.500000
  • 04519
    12ga - NEW Browning A5 (2016 & Later models) - 8 Shot
    86.500000
  • 04520
    12ga - NEW Browning A5 (2016 & Later models) - 10 Shot
    89.500000
  • 04521
    12ga - Remington 870/1100/11-87/Versa Max/V3, 12-shot
    93.950000
  • 04522
    12ga - Benelli M1, M2, Super Black Eagle I, II, & III - 12-Shot
    93.950000
  • 04524
    Spas 12 12 Gauge Magazine Extension Assembly (Spas 12) - 7 shot extension
    99.950000
  • 04530
    20ga - Remington 870/1100/11-87 - 8 Shot
    86.500000
  • 04531
    20ga - Benelli M1, M2, & Franchi - 8 Shot
    86.500000
  • 04532
    20ga - Mossberg SA-20 - 8 Shot
    86.500000
  • 04533
    12ga- Tri-Star Raptor 8-Shot Ext
    86.500000
  • 04534
    12ga- Tri-Star Vipor 8-Shot Ext
    86.500000