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Toni System 12GA Magazine Tube Extension Spring


Extension spring for 12GA shotgun extended magazine tubes.

Two versions available for different length.

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Extension spring to ensure reliable feeding when using extended magazine tubes.

Designed to work with 12GA Toni System and Beretta extended mag tubes.

Two versions available:
  • Short: For +1 to +4 extended tubes
  • Long: For +5 and longer tubes
Compatible with:

Benelli M1-M2 / Supernova / M4 / M3 / M2 SP / Beretta 1301 Comp / Comp Pro / Tactical / Winchester SX3 / SX4 / SXP / Breda B12i / Franchi Affinity / 612-912-Prestige / Stoeger M2000 / M3000-M3K / Remington 870 / Versamax / Baikal MP153 / Hatsan Optima Escort / Marocchi ATA/A12 / Mossberg JM930-940 / Fabarm XLR

Cutting Instruction:

1. Remove the original cap and spring

2. Insert Toni System extended spring

3. Place Toni System extended tube as illustrated below

4. Measure 300mm from Toni System tube’s end and cut the spring with a wire cutter. For increased reliability, always place the side that has been cut near the shotgun muzzle (i.e. facing forward)



Additional information



Short (+1 to +4), Long (+5 and longer)


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