The Tippmann ISS-12 is a 12-inch integral suppressed barrel for .22 LR (Tippmann Arms part no. A201376). It combines a solid 4150 steel ported barrel with an integrated suppressor system, delivering sound reduction in a compact package without the length, weight or complexity of a thread-on suppressor. Tippmann engineered it for subsonic .22 LR while keeping it fully functional with high-velocity ammunition. The black finish matches the rest of a typical rimfire build. It is aimed at shooters who want a quiet, short rimfire setup.

Key Specifications

• The caliber is .22 LR, an affordable rimfire for plinking, training and small game.
• The barrel length is 12 inches, a compact length that keeps the setup handy.
• The barrel is solid 4150 steel, a strong, common barrel steel.
• The barrel is ported, working with the integrated suppressor to reduce sound.
• The suppressor is integral, built into the barrel rather than threaded on.
• It is engineered for subsonic .22 LR ammunition for the quietest operation.
• It also works with high-velocity .22 LR ammunition, so you are not limited to subsonic loads.
• The model is the ISS-12, the 12-inch version of the ISS line.
• The finish is black, a low-glare, neutral color.

Frequently Asked Questions

Do I need ATF approval to buy this? No. As of October 9, 2026, ATF no longer requires Form 4 approval, registration or a tax stamp for suppressors. It transfers on a Form 4473 with a background check through a Class 3 (SOT) dealer. State and local laws still apply.

What is the ISS-12? It is Tippmann Arms’ 12-inch integral suppressed barrel for .22 LR, with a ported 4150 steel barrel and an integrated suppressor system.

Can I shoot high-velocity ammunition through it? Yes. Tippmann says it is engineered for subsonic .22 LR while remaining fully functional with high-velocity ammunition.

Buy the Tippmann ISS-12 Integral Suppressed Barrel

As of October 9, 2026, this suppressor transfers on a Form 4473 with a background check at your Class 3 (SOT) dealer, with no Form 4 or tax stamp; state and local laws still apply. Order through Tippmann Arms’s suppressors lineup and our Lubbock, Texas team will handle the transfer and it ships fast to your Class 3 dealer.