The Otter Creek Labs Universe-36 multi-caliber suppressor is built for the shooter who wants one can that lives on almost anything in the safe. It is rated for any caliber .36 or smaller, from .22 LR and 9mm through 5.56, 300 Blackout, 7.62 and .338 Lapua. The can is DMLS-printed Inconel for hard-use durability. An adjustable end cap system lets you tune for lower or higher back pressure, and it ships with a 9mm low back pressure vented end cap installed. This is the standard Universe-36; an FDE version is listed separately.

Key Specifications

• The caliber rating is anything .36 caliber or smaller, from .22 LR to .338 Lapua.
• Length is 7 inches, a mid-length body for a multi-caliber can.
• Outer diameter is 1.5 inches, the width of the tube.
• Weight is 14 ounces, a manageable figure for an Inconel can.
• The body is DMLS-printed Inconel, built for hard-use durability.
• The firing schedule is full-auto rated.
• The rear mount is HUB 1.375×24, which fits mounts from most major makers.
• The end cap system swaps with a socket or adjustable wrench, with no proprietary tools.
• It ships with a 9mm low back pressure vented end cap installed.
• No mount is included, so you choose a HUB-compatible mount.

Frequently Asked Questions

Can the Universe-36 be used on a .338 Lapua? Otter Creek Labs says not to use it on a .338 Lapua with a barrel under 24 inches.

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.

Does it include a mount? No. Mounting options are sold separately, and it uses the universal 1.375×24 HUB rear thread.

Buy the Otter Creek Labs Universe-36 Multi-Caliber Inconel Suppressor, 36 Cal

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. Moving one can between several rifles and pistols is the idea behind the Universe-36. The end cap system lets you tune it for each host. Order through Otter Creek Labs‘s suppressors lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer.