Description
Weight and Length
.578-281.69 oz1.723″1.098″
| Thread Pitch | Weight | Length | Length Added |
| 1/2-28 | 2.17 oz | 1.723″ | 1.098″ |
| 1/2-36 | 2.17 oz | 1.723″ | 1.098″ |
| 1/2-28 Tapered | 2.08 oz | 1.723″ | 0.9105″ |
| 5/8-24 | 1.69 oz | 1.723″ | 1.098″ |
| 5/8-24 Tapered | 1.69 oz | 1.723″ | |
| 9/16×24 LH | 2.01 oz | 1.723″ | |
| 13.5×1 LH | 2.01 oz | 1.723″ | 0.973″ |
| 14×1 LH | 2.20 oz | 1.723″ | 1.198″ |
| 13×1 LH | 2.20 oz | 1.723″ | 1.198″ |
| 13×1 RH | 2.20 oz | 1.723″ | 1.198″ |
These fit the plan B type mounts. This is an updated version that has larger wrench flats on the rear. 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 15-25 ft 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.
Bryan` (verified owner) –
I used one of Rearden’s nitrided FHDs on a retro AR9 build and it looks great, fits with their Atlas mount and other vendors mounts in this pattern, and is beautifully made. I’ve tried a lot of suppressor mounting options and the options from Rearden are among my favorites.
Aaron Wiedman –
Saw Rearden suggested as a mounting option on Reddit and picked up a couple FHD for a few different guns. Superb quality, great prices, and amazing functionality when paired with the Atlas mounts. Rearden has a convert for life!
kyle williams (verified owner) –
These FHD’s from Rearden are awesome. I got one in each finish and swapped all my devices over to their stuff. Also swapped all my cans over to an Atlas adapter.
Elliott –
Fits my Q Thunder Chicken perfectly. Does a good job of eliminating muzzle flash. I used a crush washer instead of Rockset. Works great!