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** 28 and/or .410 gauge shells may not reliably reset inertia triggers every time in some some 12 gauge guns. In most guns, they work fine. If you encounter this problem, try switching to another brand of shell or one with a higher velocity. If this does not solve the problem, your inertia triggers will need to be changed to mechanical triggers. This is a cheap and simple procedure that Seminole Gunworks can perform for you. If your gun already has mechanical triggers, double triggers, or hammers, you will not encounter any problems.

10 gauge gun - 12 gauge inserts

10 gauge gun - 20 gauge inserts

12 gauge gun - 20 gauge inserts

12 gauge gun - 28 gauge inserts

12 gauge gun - .410 gauge inserts

16 gauge gun - 28 gauge inserts

16 gauge gun - .410 gauge inserts

20 gauge gun - 28 gauge inserts

20 gauge gun - .410 gauge inserts

28 gauge gun - .410 gauge inserts

Gauge of Gun  

Gauge of Insert 1
Gauge of Insert 2

10 ga 12 ga 16 ga 20 ga 28 ga

12 ga 20 ga 28 ga .410 ga
12 ga 20 ga 28 ga .410 ga

Internet Special
Combo Pack
(1 set of each sub-gauge tubes for 12 gauge gun)
(Save $117)

12 gauge gun - 20 gauge, 28 gauge, & .410 gauge inserts combo pack