Description
REARDEN SPB MUZZLE BRAKE – HEAT TREAT
The Rearden SPB (Single Port Brake) with heat treat finish is a muzzle brake designed for recoil reduction and suppressor mounting. It’s a compact, high-efficiency brake that also features a taper on the muzzle end to interface with Rearden’s Atlas, Atlas XL, and Plan B suppressor mounting systems. This allows for a secure and repeatable suppressor attachment without relying on mechanical latches or levers.
- 17-4 PH H900
- Atlas and Atlas XL Compatible
- Plan B Compatible
- Atlas Adapter Overrun Approximately 1.050″
- Atlas XL Adapter No Overrun
- Shims Included*
*Shims not included with the SR25/M110 or 11/16×24
| Thread Pitch | Weight | Length | Length Added |
| .280 1/2-28 | 2.3 oz | 1.73″ | 1.105″ |
| .375 1/2-28 | 2.26 oz | 1.73″ | 1.105″ |
| .375 5/8-24 | 1.74 oz | 1.73″ | 1.105″ |
| .50 5/8-24 | 1.71 oz | 1.73″ | 1.105″ |
| .375 14×1 LH | 2.35 oz | 1.73″ | 1.205″ |
| .375 9/16-24 | 2.05 oz | 1.73″ | 1.105″ |
| .50 11/16-24 | 1.36 oz | 1.73″ | 1.105″ |
| .375 SR25 | 2.01 oz | 1.85″ | 1.25″ |
These fit the plan B type mounts. Always use an alignment rod to ensure that the entire system is set up correctly. Make sure all surfaces are cleaned and the muzzle device has been torqued and Rockset to the barrel. Use on a Q can voids your warranty, be warned.
Torque the muzzle device to approximately 15-25ft lbs. Make sure the muzzle device is square against the shoulder. When setting the silencer on the muzzle device, ensure that the threads and tapers are clean. Torque the suppressor to 10 ft lbs. Ensure alignment. Enjoy. The nitride finish does lead to a tighter seal, with that said, it is extremely important to torque and rockset your muzzle device to the barrel properly.
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