Do I need an FFL to buy this?

If you and the seller live in different states, yes. The seller ships to your FFL and you complete a 4473 and background check there. If you live in the same state, federal law allows a private sale, but many states require an FFL transfer anyway. Check your state's rules before you meet.

Suppressor tubes for sale

Firearm part

Outer tubes and sleeves for modular and serviceable cans. A tube is a silencer part under the Gun Control Act, so out-of-state sales ship to your FFL.

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What to check before you buy a tube

Inner diameter and thread spec on both ends. They must match your baffles and end caps exactly.
Length, for modular cans that run in short or long configurations.
Material and wall thickness: titanium saves weight, stainless handles heat and abuse better.
Whether it's serialized. On most cans the serial number is on the tube, and that's what your FFL records.
Dents or out-of-round damage. Even small dents can cause a baffle strike.

Common questions

Do I need an FFL to buy this?: If you and the seller live in different states, yes. The seller ships to your FFL and you complete a 4473 and background check there. If you live in the same state, federal law allows a private sale, but many states require an FFL transfer anyway. Check your state's rules before you meet.

Not sure how transfers work now? Read what changed with the NFA in October 2026 and our buying and selling rules.