ATI’s shotgun magazine tube clamp (manufacturer part number SMC1100) reinforces the connection between a magazine tube extension and the barrel on a 12 gauge shotgun, and doubles as a mounting point for a sling swivel or a 1-inch light/laser.

Key Specifications

• Manufactured by ATI Outdoors.
• Built for 12 gauge shotguns.
• Strengthens the connection between a magazine tube extension and the barrel.
• Includes a reversible sling swivel stud for right- or left-handed shooters.
• Can also mount a 1-inch diameter light or laser to the barrel.
• Molded from DuPont extreme-temperature, glass-reinforced polymer.
• Measures 8.85 inches.
• Finished in black.
• This is a magazine tube clamp accessory, not a magazine or magazine extension itself.

Frequently Asked Questions

What does this clamp do? It strengthens the connection between a magazine tube extension and the barrel, reducing flex and wobble.

Can it mount an accessory? Yes, it includes a reversible sling swivel stud and can also mount a 1-inch diameter light or laser to the barrel.

What shotguns does it fit? It’s built to fit 12 gauge shotguns with a magazine tube extension installed.

Buy the ATI 12 Gauge Shotgun Magazine Tube Clamp

This ATI clamp is a simple way to firm up your shotgun’s magazine tube extension. Shop more Advanced Technology (ATI) gear or browse the full Shotgun Parts selection. Order it from our Lubbock, Texas gun shop and it ships fast to your door.