The Q Tall Boy 7.62mm suppressor is a long, all-steel .30 caliber can built for one job, maximum sound suppression with subsonic .300 Blackout (brand part no. SIL-TB-QUICKIE-762). Its extended internal volume slows and cools expanding gas more effectively than shorter cans, and Q describes the result as movie quiet. While it is optimized for subsonic .300 BLK, Q says it keeps performing across a wide range of calibers up to .300 Win Mag. The steel body has a black nitride finish, mounts on Q’s Quickie Fast-Attach taper and is rated for full auto. This version includes the Rearend muzzle device.

Key Specifications

• The caliber rating is 7.62mm, the .30 caliber class.
• It is optimized for subsonic .300 Blackout, the load its extra volume was built to quiet.
• Q says it handles cartridges up to .300 Win Mag.
• Length is 10.25 inches, the extra length that provides its added volume.
• Diameter is 1.75 inches.
• Weight is 19 ounces.
• Construction is premium steel, for heat and wear resistance.
• The finish is black nitride, which resists corrosion.
• The mount is Quickie Fast-Attach, over a Cherry Bomb or Rear End device, and a Rearend is included.
• Q rates it full auto with no barrel restrictions.

Frequently Asked Questions

What is the Tall Boy designed for? Q built it for maximum sound suppression, especially with subsonic .300 Blackout, using a longer body and more internal volume than shorter cans.

What calibers can I shoot through it? Q lists it as a 7.62mm can optimized for subsonic .300 BLK that keeps performing across a wide range of calibers, including .300 Win Mag.

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 Tall Boy 7.62mm Steel Suppressor

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 silencers and suppressed firearms lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer.