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Q&A for Ultradyne Apollo S Compensator — 13 Questions & 15 Answers

Name Ultradyne Apollo S Compensator (4.8)
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A
Answered by Bob, member, from PA, United States, on February 29, 2020

Any break would work better then an A2 flash hider.

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Manufacturer Answer
A
Answered by Ultradyne USA, Manufacturer from MO, United States, on October 08, 2025

The standard timing nut provided with the Apollo S will successfully shroud over diameters 7/8" (0.875") or less.

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Manufacturer Answer
A
Answered by Ultradyne USA, Manufacturer from MO, United States, on October 08, 2025

Your rifle will need at least 0.6" of thread length to successfully use this muzzle brake in conjunction with the provided timing nut. If the thread length is shorter, a traditional crush washer can be used in the place of the provided timing nut to allow proper timing and torque.

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Q
Z, member, from KS, United States, asked on March 31, 2025

Will this fit PSA AR 15 Nitride edition?

Manufacturer Answer
A
Answered by Ultradyne USA, Manufacturer from MO, United States, on October 08, 2025

The Apollo S muzzle brake should work with most PSA AR 15 Nitride Edition rifles.

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Q
Nathan Fischer, member, from AZ, United States, asked on December 22, 2024

Will this work for a 22-250 with 5/8-24 threads on the barrel

Manufacturer Answer
A
Answered by Ultradyne USA, Manufacturer from MO, United States, on October 08, 2025

As long as your barrel is at least 14.5", the Apollo S 6.5 should work great with your rifle chambered in 22-250 with 5/8 x 24 threads.

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Q
Hive Med, member, from CA, United States, asked on July 13, 2024

What is the length?

Manufacturer Answer
A
Answered by Ultradyne USA, Manufacturer from MO, United States, on October 08, 2025

The Apollo S muzzle brake is 2.94" by itself, and about 3" in conjunction with the provided timing nut and spacing collar.

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Manufacturer Answer
A
Answered by Ultradyne USA, Manufacturer from MO, United States, on October 08, 2025

The Apollo S muzzle brake is 2.94" by itself, and about 3" in conjunction with the provided timing nut and spacing collar.

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Q
Victor, member, from CA, United States, asked on May 14, 2023

Will this work on a ruger 6.5 PRC?

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on May 16, 2023

Yes, the Ultradyne Apollo S Compensator model MPN:UD10250 will also work with rifles chambered in 6.5 PRC that use 5/8x24 threads as both 6.5 Creedmoor and 6.5 PRC have the same bullet diameter.

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Q
Alex, guest, from FL, United States, asked on September 11, 2022

Will this thread on my factory ruger american predator 6.5 creedmoor?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on September 22, 2022

The Ultradyne Apollo S Compensator 6.5 Creedmoor model has threads for 5/8x24. So it will work with a Ruger American Predator in 6.5 Creedmoor.

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Q
Massey, member, from AZ, United States, asked on September 06, 2022

What Apollo would be best for a 300 ham'r on a 18" barrel with 1-13 twist?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on September 19, 2022

The Ultradyne Apollo S Compensators will not work with a rifle chambered in 300 Ham'r. You will need the .308 model of the Ultradyne Apollo Max Compensator at the link below. This is model number UD10710. It will work with your barrel if it is threaded for 5/8x24 and has a minimum thread length of .600".
https://www.opticsplanet.com/ultradyne-apollo-compensator.html?_iv_code=3HE-BMB-APND-UD10710

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