A suppressor is only as good as the way it attaches to your rifle. Get the mount right and your can returns to the same zero every time you reattach it, holds tight round after round, and moves easily between hosts. Get it wrong and you're fighting carbon lock, chasing point-of-impact shift, or worse — running a can that isn't safely attached at all.

The problem is that the mounting world has its own language — thread pitch, HUB, Bravo, taper mount, ASR, direct thread, QD — and most of it gets explained to you by someone who forgot they ever had to learn it. This guide untangles all of it in plain English, then shows you exactly where Rearden Manufacturing's mounting system fits so you get your can set up right the first time.

Suppressor Mounting Nomenclature 101

Before comparing systems, it helps to speak the language. Here are the terms that show up on every spec sheet and product page.

Barrel Thread Pitch & the Caliber Chart

Thread pitch is the first thing to nail down, because it's fixed by your barrel. It's expressed as major diameter × threads per inch. A 1/2×28 barrel has a half-inch major diameter with 28 threads per inch. Metric threads (common on European and large-bore guns) read as M18×1.5 — an 18 mm diameter with 1.5 mm between threads.

The muzzle device or direct-thread mount you buy must match the barrel exactly. Here are the patterns you'll encounter most:

The Three Ways to Mount a Suppressor

Every mounting decision comes down to one of three approaches.

For most shooters building more than one suppressed gun, the winning strategy is a HUB-threaded can plus the adapters that match your muzzle devices. That's exactly the flexibility Rearden's system is built around.

The HUB / Bravo Universal Standard

HUB stands for Hybrid Universal Base, and it refers to a 1.375×24 (one and three-eighths inch, 24 TPI) thread on the rear of a modular suppressor. It exists because manufacturers were all cutting different rear threads on their cans — HUB is the spec the industry rallied around so one adapter could fit (almost) everything.

"Bravo" is simply the older name for that same thread. SilencerCo introduced it on the 2014 Omega 300, calling the 1.375×24 base a Bravo mount; as the pattern spread and became the shared standard, it got re-branded HUB. So Bravo and HUB are the same spec — when you see Rearden's "Atlas Bravo," the "Bravo" just tells you it's the 1.375×24 HUB-thread version. It could just as accurately be called the Atlas HUB.

Proprietary QD Systems, Compared

The "host side" of the mount is where brands compete. Each QD ecosystem uses its own muzzle-device pattern and lockup mechanism. Most modern systems are, at their core, a taper that self-centers the can plus a locking collar or ratchet to hold it. Here's how the major players stack up.

Where Rearden Fits: The Plan B & Atlas System

Rearden Manufacturing builds a taper-mount ecosystem designed to be simple, durable, and — critically — HUB-friendly, so it plays well with the modular suppressor world instead of locking you into a closed system.

The system has two halves: Plan B muzzle devices (the host side that goes on your barrel) and the Atlas adapter (the can side that turns any HUB suppressor into a Plan B QD can).

Plan B Muzzle Devices — the host side

Plan B is the taper interface — the spec that defines how a muzzle device seats into an adapter. A Plan B muzzle device threads onto your barrel (in the correct pitch for your caliber), and any Plan B–spec adapter locks onto its taper. Run the gun suppressed for QD convenience, or unsuppressed with the flash or recoil control the device provides. The Plan B flash hiders we carry are:

FHD — Flash Hider R2 — Flash Hider R2S — Flash Hider

All three are tapered-shoulder designs built to index cleanly against the Atlas taper, and come in thread pitches for both 5.56-class (1/2×28) and .30-class (5/8×24) barrels. Finish options span practical to premium — classic black nitride, gunmetal, and black rainbow — so shooters can match a build's aesthetic without giving up durability. Muzzle brakes in the Plan B family are also available by request.

Atlas — the HUB adapter that ties it together

The Rearden Atlas is the bridge between the two specs. One side threads into any HUB/Bravo (1.375×24) can; the other presents a Plan B taper that accepts a Plan B muzzle device. Install the Atlas once and your modular can locks onto any Plan B device across your host list. (The "Bravo" in Atlas Bravo Gen 2 just denotes that 1.375×24 HUB thread — same spec, older name.)

Compatibility is deliberately broad. The Atlas works with Rearden's own Plan B muzzle devices, Liberty Precision Machine muzzle devices, and the popular Q Cherry Bomb — so you're not restricted to a single brand of host device.

Beyond the Atlas itself, the Plan B pattern is supported by a range of adapter options — including HUB, Charlie, Helios QD, and Wolfman mounts — giving you more than one path to fit your specific suppressor. We stock Helios QD and Wolfman Atlas-pattern adapters alongside the Rearden mounts.

How to Choose Your Setup

Use this quick decision path to land on the right configuration.

1. Confirm your thread pitch. Check every host you plan to suppress against the caliber chart above. This determines which Plan B muzzle device thread you order for each gun.
2. Decide: one gun or many? A single dedicated host can run direct thread. Two or more hosts — or any plan to grow, and let's be honest, there's always a plan to grow — points strongly to a HUB can plus QD adapters.
3. Verify your can is HUB (1.375×24). If it is, the Atlas drops right in. Most modern modular cans qualify; large or specialty cans may need the Atlas XL.
4. Match muzzle devices to each barrel. Order a Plan B device (flash hider or brake, in the right thread) for each host so the can moves between them with the same lockup.
5. Pick your finish. Nitride for value and toughness; PVD or titanium when you want the build to look as good as it runs.

Rearden Mounts & Devices at Zed Supply

These are the most popular Rearden parts — we keep them on the shelf so they ship fast. The rest of the Rearden line is available too, drop-shipped from our distributors. Build your system from one place: an Atlas adapter for your can plus the Plan B flash hider in the right thread for each host.

Frequently Asked Questions

Disclaimer: This guide is educational. Suppressors are regulated under the National Firearms Act and applicable state law; purchase and transfer requirements apply. Always verify your barrel thread pitch and suppressor specifications before ordering, follow all manufacturer torque and installation instructions, and confirm legality in your jurisdiction. Product names and trademarks belong to their respective owners and are referenced for compatibility and educational purposes only.