The Rearden Alpha Atlas mount in a nitride finish (brand part no. 10096) is a thread adapter that gives a suppressor with a 1.125-28 inside-diameter thread a Plan B style mounting interface. Rearden lists it for suppressors such as the Rugged Obsidian 9 and Obsidian 45. It adds only 0.350 inch of length and works with the short Rearden muzzle devices as well as the Q Cherry Bomb and other Plan B compatible devices. For a shooter pairing a Plan B muzzle device with an Obsidian, it is the mount that makes the connection.

Key Specifications

• The thread is 1.125-28, the SilencerCo Alpha thread pitch, so it mates with suppressors that use that inside-diameter thread.
• The finish is nitride, a hard surface treatment suited to a mount that sees repeated installs.
• The material is 17-4 PH H900 stainless steel, a precipitation-hardened steel chosen for strength in a small part.
• It weighs 1.22 ounces, which adds very little to the muzzle end.
• It adds 0.350 inch of length, which keeps the overall setup short.
• It fits suppressors such as the Rugged Obsidian 9 and Obsidian 45, which use the 1.125-28 interface.
• It works with the short Rearden devices, including the FHD, Mini, SPB, RPB and R2S.
• It is compatible with the Q Cherry Bomb and other Plan B compatible muzzle devices.
• Rearden does not recommend it on suppressors that use low-profile style adapters, such as the Omega 9k.
• Rearden says finishes do not have to match, so the nitride mount can pair with a muzzle device in a different finish.

Frequently Asked Questions

Which suppressors does this mount fit? Rearden lists it for suppressors with 1.125-28 inside-diameter threading, such as the Rugged Obsidian 9 and Obsidian 45. It is not recommended for suppressors that use low-profile style adapters, like the Omega 9k.

Do I need a nitride muzzle device with the nitride mount? No. Rearden says you do not need to match the finish, so you can mix and match finishes.

Which muzzle devices does it work with? The short Rearden devices (FHD, Mini, SPB, RPB and R2S), the Q Cherry Bomb and other Plan B compatible muzzle devices.

Buy the Rearden Alpha Atlas Mount, 1.125-28 Thread, Nitride Finish

A short, strong adapter keeps the can close to the muzzle device and the setup compact. Order it from our Lubbock, Texas gun shop for fast direct shipping, and browse our other Class 3 parts and accessories.