PTR VENT 3-Caliber Suppressor Kit

Three Suppressors for Distinct Applications

The PTR VENT 3-Caliber Suppressor Kit combines the VENT 1, VENT 2, and VENT SPIRITUS™ 5.56i in one package. Each suppressor is configured around a different cartridge class and host type rather than requiring one suppressor to cover substantially different operating requirements.

The VENT 1 provides a full-size .30-caliber rifle configuration. The VENT 2 is designed around 9mm PCCs, subguns, and compatible handguns. The SPIRITUS 5.56i provides a compact Inconel configuration for 5.56 rifles and compatible small-caliber platforms.

Materials Selected for Each Role

The VENT 1 and VENT 2 use monolithic structures 3D printed from titanium. This construction integrates their internal gas-management geometry directly into each suppressor body while limiting added muzzle weight. The VENT 1 weighs 12.3 ounces, and the more compact VENT 2 weighs 8.9 ounces.

The SPIRITUS 5.56i uses a monolithic structure 3D printed from Inconel. This material is selected for strength and resistance to the temperatures associated with demanding rifle firing schedules. At 6 inches long and 15.2 ounces without its adapter, the SPIRITUS trades some of the titanium VENT 3’s weight advantage for reduced overall length and increased material durability.

PIP Gas-Management Architecture

All three suppressors incorporate PTR’s Purposely Induced Porosity™ technology. The architecture uses engineered porous structures and controlled internal flow paths to manage expanding combustion gases while reducing the pressure accumulation associated with more restrictive suppressor designs.

The SPIRITUS 5.56i adds radial PIP venting as part of its pressure-management system. This is particularly relevant on semiautomatic 5.56 rifles, where suppressor-induced pressure can affect shooter-side gas, ejection-port signature, and weapon behavior.

Mounting Configured for Each Platform

The VENT 1 and SPIRITUS 5.56i use 1-3/8×24 HUB mounting interfaces, allowing them to accept suitable HUB-pattern mounting systems. The VENT 2 uses a 1.125×28 Alpha interface and incorporates a booster cage for use with compatible pistol-mounting components.

Each suppressor includes a direct-thread adapter matched to commonly used barrel threads in its primary caliber class. Alternative mounts, pistons, or boosters must be compatible with the suppressor, host firearm, barrel thread, and operating system.

Why This Kit Exists

This kit provides dedicated suppressors for .30-caliber rifle, 9mm, and compact 5.56 applications while retaining PTR’s monolithic construction and PIP gas-management architecture across the set. Its defining feature is the SPIRITUS 5.56i, which replaces the longer, lighter titanium VENT 3 with a shorter Inconel suppressor configured for more demanding 5.56 firing schedules.

Each suppressor can remain set up for its intended host and mounting system, reducing the need to transfer one suppressor and its mounting hardware between substantially different firearm platforms.