Q&A for Radical Firearms 16 in. 12.7x42 (.936) Upper Assembly

Radical Firearms 16 in. 12.7x42 (.936) Upper Assembly

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Joseph, guest, from NC, United States, asked on June 27, 2020

Will this upper fit any ar-15 lower receiver

Answered by pound, member, from PA, United States, on March 04, 2021

yes it will

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Rebel, member, from GA, United States, asked on November 27, 2022

12.7mm is somewhat close to 50 caliber right?

Expert Answer

Answered by Hunter, Gear Expert, from OH, United States, on December 01, 2022

The Radical Firearms 16 in. 12.7x42 (.936) Upper Assembly is chambered in 12.7x42mm which is the same as 50 Beowulf since 50 Beowulf is a trademarked name.

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Allen Tate, member, from LA, United States, asked on March 22, 2021

Will this work with a PSA PA-15 AR Pistol lower?

Expert Answer

Answered by Nick B., Gear Expert, from IL, United States, on November 02, 2021

Yes, this will be compatible.

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Captain, member, from CO, United States, asked on February 10, 2021

Should this be installed on an AR-10 type lower. (.308 win). Any data on 18 or 20” barrel with different twists? 1:10. Or 1:14? Thanks, My 1st build.

Expert Answer

Answered by Nick B., Gear Expert, from IL, United States, on November 02, 2021

This will not fit an AR10/308 lower receiver, it is made to fit a standard AR15 lower receiver. Please email us at TechSales@OpticsPlanet.com with the specific data you are looking for and we'll be happy to help.

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pjack, guest, from PA, United States, asked on May 28, 2020

I am just looking for a 20 inch barrel for my 12.7X42mm do you know where I can purchase one?

Expert Answer

Answered by Nick B., Gear Expert, from IL, United States, on November 02, 2021

Please email us at TechSales@OpticsPlanet.com and we'll be glad to offer any possible options.

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Emmanuel, member, from FL, United States, asked on February 23, 2020

This upper shoots 50 Beowulf? correct? Also, where can I get the magazine for this upper?

Expert Answer

Answered by Ethan C., Gear Expert, from IL, United States, on March 23, 2020

Yes, this shoots .50 Beowulf. You can use any .50 Beowulf AR-15 magazine such as this: https://www.opticsplanet.com/alexander-arms-alexander-magazine-50-beowulf-10-rounds-steel.html

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gus, guest, from MI, United States, asked on December 25, 2018

my wife just ordered a scope and a 12.7x42 upper for me . I was wondering if it comes with a mag thanks Ron and Heidi Bambach

Expert Answer

Answered by Ethan C., Gear Expert, from IL, United States, on June 05, 2019

No, a magazine is not included.

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Cpayne, guest, from MO, United States, asked on December 06, 2018

Does it come with a magazine?

Expert Answer

Answered by Nick B., Gear Expert, from IL, United States, on November 02, 2021

No, this does not come with a magazine.

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Clifton Erickson, member, from ND, United States, asked on December 05, 2018

Is the muzzle break threaded on?

Expert Answer

Answered by Ethan C., Gear Expert, from IL, United States, on June 05, 2019

Yes, the muzzle brake is threaded on, so you can remove and replace it.

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Matthew Nystrom, guest, from FL, United States, asked on November 30, 2018

Is the muzzle changeable?

Expert Answer

Answered by Ethan C., Gear Expert, from IL, United States, on June 05, 2019

Yes, the muzzle brake is threaded on, so you can remove and replace it.

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Q&A for Radical Firearms 16 in. 12.7x42 (.936) Upper Assembly — 14 Questions & 15 Answers