The Q Erect9R is a fully modular 9mm silencer in a clear anodize finish (Q part no. SIL-E-9). You can run it short for a compact setup or stack it out to its full 8.7 inches for maximum internal volume, changing its length, weight and performance to suit the day. Q says it weighs about the same as a phone when fully assembled, and it ships with a booster included. That makes it a flexible 9mm can for pistols, pistol-caliber carbines and range work.

Key Specifications

• Caliber is 9mm, the cartridge this modular silencer is built for.
• Length is adjustable from 3.4 to 8.7 inches, so you choose a compact or full-volume build.
• Weight runs from 4.0 to 7.6 ounces depending on configuration, light enough for a pistol.
• Diameter is 1.375 inches, the same across every configuration.
• Construction is aluminum and stainless steel, which keeps the weight down.
• The finish is clear anodize, a natural aluminum look.
• The mounting solution is direct mount, and Q sells other mounts separately for different hosts.
• A booster is included, so the suppressor is ready for compatible tilt-barrel pistols out of the box.
• The design is fully modular, so you pick between maximum suppression and a shorter setup.
• Internal volume is high when fully assembled, which is where the quietest builds come from, per Q.

Frequently Asked Questions

Do I need the booster? Q includes a booster so the Erect9R is ready for compatible tilt-barrel 9mm pistols, and notes that some tilt-barrel pistols are light enough that they do not need it.

How long is the Erect9R? It adjusts from 3.4 to 8.7 inches, and the weight changes with it from 4.0 to 7.6 ounces.

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.

Buy the Q Erect9R 9mm Modular Suppressor, Clear Anodize

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 Q‘s suppressor lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer.