One Horse Suppressors

300 Blackout Suppressor

$549.99 MSRP $599.99
FREE SHIPPING on orders of $399 or more

The One Horse Ryn .30 Cal: a titanium .30 cal suppressor tested on 300 Blackout. Plan B Included.

A 300 Blackout suppressor from One Horse means the Ryn .30 Cal: Grade 5 titanium, 6.4 oz, 6.7 in., tested on 300 Blackout (plus .308, 5.56, 6mm ARC, 6.5 Creedmoor, and 6.5 Grendel). Plan B Included with a 5/8×24 Plan B mount and OH-Hub Mount in the box. Built in Brownstown, Indiana. Not full-auto rated.

Order online, we ship to your SOT dealer, you complete a 4473 (Form 4 or Form 4473 per dealer policy), and dealer approval is typically under 24 hours. Keep a spare Plan B mount on a second 300 BLK host, and add a 6.5″ heat cover for hot strings. More .30 cal context on .30 cal suppressors.

  • Plan B Included: 5/8×24 Plan B mount and OH-Hub Mount in the box
  • The $200 tax stamp is gone. Subject to state law and dealer policy.

SKU OH-RYN30UPC 850078799760

Ryn .30 Cal 300 blackout suppressor by One Horse
  • Limited Lifetime warranty
Colors — Black, FDE, OD Green

Add a heat cover:

Sukon™ Performance Made in the U.S.A.

Ryn 6.5" Heat Cover – Coyote BrownRyn 6.5" Heat Cover – Coyote BrownAmerican Made$104.99 MSRP $119.99
Ryn 6.5" Heat Cover – Coyote BrownRyn 6.5" Heat Cover – Coyote BrownAmerican MadeAvailable SoonNotify Me When Available

Get another mount:

Extra mount · 5/8×24. Move the Ryn between rifles.

5/8x24 Pike 3 Prong Plan B Mount5/8x24 Pike 3 Prong Plan B MountShips to you like other parts$59.99 MSRP $69.99
5/8x24 Pike 3 Prong Plan B Mount5/8x24 Pike 3 Prong Plan B MountShips to you like other partsAvailable SoonNotify Me When Available

Shop the Ryn .30 Cal

  • Limited Lifetime warranty
  • Ships to your dealer
  • Plan B Included

How buying a suppressor works

  1. Order online.Pick your Ryn and check out at theonehorse.com.
  2. Choose your dealer.At checkout, choose a dealer near you. Your dealer must hold an SOT to receive a suppressor. We can't ship to a dealer without one, so check with them before you order.
  3. Paperwork and pickup.Once it reaches your dealer, you fill out a 4473 and take it home once approved.

One Horse suppressors are heavy duty, rugged and built with quality in mind. They aren't rated for full auto fire, but they're made to take abuse.

The Ryn on 300 BLK

One can. More rifles.

  • 6.4 ozWeight
  • 6.7 in.Length
  • 1.5 in.Diameter
  • Grade 5Titanium

Ryn .30 Cal specs

SKUOH-RYN30
Caliber.30 cal
Tested calibers300 Blackout, .308, 5.56, 6mm ARC, 6.5 Creedmoor, 6.5 Grendel
MaterialGrade 5 titanium
Weight6.4 oz
Length6.7 in.
Diameter1.5 in.
Mount5/8×24 Plan B mount included
Rear connection1.375×24 HUB (OH-Hub Mount included)
ColorsBlack, FDE or OD Green
Full auto ratedNo
WarrantyLimited Lifetime

Sound test

Host / ammoUnsuppressed muzzleSuppressed muzzleMuzzle reductionEar reduction
8″ 300 BLK pistol, supersonic169.5 dB148.9 dB20.6 dB25.1 dB
20″ .308 rifle, supersonic172.3 dB148.8 dB23.6 dB19.8 dB

From the One Horse performance chart (direct thread mount). Results vary with barrel length, host, caliber, ammo, mount and conditions. Always wear hearing protection.

Quick answer: 300 Blackout suppressor

The One Horse Ryn .30 Cal is the 300 Blackout suppressor: Grade 5 titanium, 6.4 oz, 6.7 in., tested on 300 Blackout (and .308, 5.56, 6mm ARC, 6.5 Creedmoor, 6.5 Grendel). Plan B mount included (5/8×24) plus OH-Hub Mount. Not full auto rated. Order online; we ship to your dealer. See Ashe vs Ryn or how to buy a suppressor.

The Ryn .30 Cal on 300 BLK

The Ryn .30 Cal is One Horse's 300 blackout suppressor: a Grade 5 titanium can, 6.7 in. long, 1.5 in. in diameter and 6.4 oz.

It is tested on 300 Blackout, .308, 5.56, 6mm ARC, 6.5 Creedmoor and 6.5 Grendel, so one can covers more than one rifle. Plan B Included: a 5/8×24 Plan B mount comes in the box with the OH-Hub Mount.

  • Running it suppressed?

    See what buffer for a suppressed AR-15 in our buffer weight chart. The 300 Blackout bolt carrier group fits both .300 BLK and 5.56.

  • Match the thread

    5/8×24 is the usual thread on .300 BLK barrels (see the AR-15 muzzle thread pitch chart). The Ryn mounts on a 5/8×24 Plan B mount, which threads onto your barrel. Check your barrel before you order. One Horse .300 BLK firearms, like the 16" .300 BLK AR-15 Rifle and the .300 BLK AR pistols, list a 5/8×24 muzzle thread.

  • One can, more rifles

    Put an extra 5/8×24 Pike 3 Prong on each rifle and move the Ryn between them. With no can on, the Pike works as a 3 prong flash hider. The Pike ships to you like other parts. Only the suppressor ships to your dealer.

  • Subsonic and supersonic

    .300 BLK is loaded both ways. Supersonic loads break the sound barrier and make a crack downrange, even with a suppressor. Subsonic loads stay below the sound barrier, so that crack is absent. A suppressor reduces the sound at the muzzle. It does not remove a supersonic bullet's crack. The One Horse sound test above used supersonic ammo.

  • Heat covers

    A suppressor gets hot. The Ryn 6.5" heat covers by Sukon™ Performance are American Made, rated up to 1,000°F and fit cans 1.5 to 1.8 in. in diameter.

300 blackout suppressor on an AR-15 in the woods with heat coverOne Horse .30 cal suppressor shooter outdoorsOne Horse suppressor and Pike 3 Prong flash hider Plan B mountOne Horse 300 blackout suppressor performance data chart
How to buy

Order online. We ship to your dealer.

Pick your Ryn and check out at theonehorse.com. At checkout choose a dealer close to you. Your dealer must hold an SOT. Once it reaches your dealer, you fill out a 4473 and take it home once approved.

The $200 tax stamp is gone. Subject to state law and dealer policy.

One Horse suppressors are heavy duty, rugged and built with quality in mind. They aren't rated for full auto fire, but they're made to take abuse.

300 Blackout suppressor FAQ

Which One Horse suppressor is for 300 Blackout?

The Ryn .30 Cal. It is tested on 300 Blackout, .308, 5.56, 6mm ARC, 6.5 Creedmoor and 6.5 Grendel. It is not rated for magnum or high-pressure calibers.

What mount comes with the Ryn .30 Cal?

Plan B Included: every Ryn ships with a 5/8×24 Plan B mount and the OH-Hub Mount.

What thread do I need for a 300 BLK suppressor?

5/8×24 is the usual thread on .300 BLK barrels. Check your barrel before you order.

How much quieter is the Ryn on 300 Blackout?

On the One Horse performance chart, the Ryn took 20.6 dB off at the muzzle on an 8" 300 BLK pistol with supersonic ammo (direct thread mount). Results vary with barrel, ammo, mount and conditions. Suppressors reduce sound but do not remove it. Always wear hearing protection.

How do I buy a suppressor from One Horse?

Order online and choose a dealer close to you at checkout. Your dealer must hold an SOT. We ship it to your dealer. Once it reaches your dealer, you fill out a 4473 and take it home once approved.

Is the Ryn .30 Cal full auto rated?

One Horse suppressors are heavy duty, rugged and built with quality in mind. They aren't rated for full auto fire, but they're made to take abuse.

Which heat cover fits the Ryn?

The Ryn 6.5" Suppressor Heat Cover in Black or Coyote Brown. The covers are American Made by Sukon™ Performance and fit cans 1.5 to 1.8 in. in diameter.

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