Lightweight and multi-caliber rarely land in the same suppressor. Cans built to survive magnum pressure usually get there with mass, and cans built to be light usually get there by narrowing what they are rated to eat. The Liberty Suppressors Infiniti X is an attempt to do both, and the number that makes it interesting is the weight: a titanium monocore baffle stack inside a plain tube, with an advertised bare body weight of 7.5 ounces.

What the scale actually says

Advertised weights are a starting point, not a spec you should build a rifle around. The unit I handled came in at 7.4 ounces bare, slightly under the published figure. That number climbs the moment you add a mount, and the mount is where most buyers get surprised.

  • Low profile 1/2×28 direct thread: 8.1 ounces total
  • Full size steel fixed barrel adapter, 1/2×28: 10.2 ounces total
  • 1/2×28 booster assembly for tilting barrel pistols: 11.9 ounces total

That is a 4.5 ounce spread between the lightest and heaviest configuration on the same serialized tube. On a hunting rifle carried all day, the difference between 8.1 and 10.2 ounces at the end of a 22 inch barrel is felt in the hands long before it is felt on a scale. On a handgun, the booster is not optional, so the 11.9 ounce figure is the honest number for pistol use.

How the modular design is built

The serialized component is the outer sleeve. The titanium monocore baffle stack drops in, a lock ring secures it, and crenellations on the front of the stack index the core against the tube so it cannot rotate under fire. Adapters thread into the rear of the body. This construction matters for three practical reasons.

First, a user-serviceable core means carbon and lead fouling can be addressed directly rather than relying on solvent soaking through a welded tube. If you plan to run .22 LR through it, that access is not a convenience feature, it is the difference between a can that stays functional and one that seizes into a solid mass after a few thousand rounds of dirty rimfire.

Second, titanium is the reason the weight is where it is, and it also sets the thermal limits. Titanium handles sustained heat differently than Inconel or stainless. Slow fire from a bolt gun or a precision gas gun is well within its comfort zone. Sustained rapid strings from a belt-fed or a rifle-length string in the summer are not what a titanium core is designed to absorb.

Third, the exterior is a plain cylindrical tube. That sounds cosmetic, but it affects handguard clearance, thermal cover fitment, and how the can seats in a suppressor pouch or a padded rifle case. Fluted and faceted exteriors complicate all three.

Barrel length minimums are the real compatibility spec

The caliber range runs from .22 LR up to .338 Win Mag, but the rating that governs whether your host is legal to run is barrel length, not just chambering. The published minimums break down like this:

  • Magnum cartridges: 22 inch barrels or longer
  • Standard rifle cartridges such as .308 Winchester and .30-06: 18 inch minimum
  • Small frame AR cartridges such as 5.56 NATO and 6.8 SPC: 11.5 inch minimum
  • Supersonic .300 Blackout and 8.6 Blackout: 8 inch minimum
  • Subsonic loads: down to 5 inches

Read those numbers as a gas volume and dwell time argument, not as arbitrary caution. A short barrel dumps unburned powder and higher muzzle pressure into the first baffle. Titanium tolerates that less well than steel. Ignoring a stated minimum is how a lightweight can gets a blown baffle and a voided warranty on the same range trip.

Mount selection framework

Before you buy the mount package, work through four questions in order.

  1. How many hosts, honestly? If the can lives on one rifle, a low profile direct thread mount saves weight, length, and money. Quick detach systems earn their weight when you are moving between three or more guns.
  2. Is a tilting barrel pistol in the plan? If yes, you need a booster. A fixed barrel adapter on a Browning-action pistol will induce malfunctions.
  3. What thread pitches do you already own? 1/2×28 and 5/8×24 cover most of the domestic market. A 13.5×1 LH piston is what you need for common 9mm pistols with metric threading.
  4. Recoil impulse of the heaviest host. Liberty specifies the full size steel fixed barrel adapter for higher pressure rifle cartridges including 6mm BR, 6mm PPC, and .243 Winchester. If you are running 6mm ARC or anything in that pressure band, use the steel mount and accept the 10.2 ounce total.

Pricing and the upgrade path

The base can lists at $1,070. The complete kit at $1,266 adds 1/2×28 and 5/8×24 fixed barrel and low profile mounts plus a 1/2×28 booster, which is a reasonable value if you already know you need more than one mount. The master bundle at $1,731 adds a 13.5×1 LH piston and tooling. Owners of an older Mystic, Mystic X, or original Infiniti can send the unit in for conversion to Infiniti X specification for $500, or $575 for a color other than black. That upgrade route preserves the existing tax stamp, which is worth understanding before buying a second can outright.

Ownership, maintenance, and transport

Plan for disassembly on a schedule tied to what you shoot. Rimfire fouling accumulates fast and should be addressed every few hundred rounds. Centerfire rifle use is far more forgiving. Anti-seize on adapter threads and mount shoulders prevents a can from welding itself to a mount after a hot session. Check mount torque and lock ring tension during any cleaning cycle.

For storage and transport, keep the can dry and let it cool completely before it goes into an enclosed case. Sealing a hot titanium tube in foam traps moisture and accelerates finish wear. Compare specifications and mounting systems in our suppressor buyer’s guide, and browse current multi-caliber suppressor options alongside thread adapters and mounts when you are matching hardware to hosts. If the can is destined for a precision rifle, our rifle field optics guide covers how added muzzle weight and point of impact shift interact with zeroing.

Decide what job this can has to do

If your answer is one lightweight hunting rifle plus occasional pistol duty, the Infiniti X in a direct thread configuration is a strong fit. If the answer is high volume carbine training with sustained strings, a heavier stainless or Inconel can is the more durable purchase. Write down your hosts, their barrel lengths, and their thread pitches before you pick a package, and buy the mount set that matches that list rather than the one that sounds most complete.