Q&A for Matador Arms Montgo 9mm Upper Receiver

Matador Arms Montgo 9mm Upper Receiver

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Jw, guest, from NY, United States, asked on November 12, 2022

Can this be used with a full auto ar9 lower

Expert Answer

Answered by Hunter, Gear Expert, from OH, United States, on November 15, 2022

The manufacturer does not state if the Matador Arms Montgo 9mm Upper Receiver is full auto compatible. I recommend contacting the manufacturer for that information.

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Troy Sutton, member, from FL, United States, asked on October 01, 2022

what colt mag lowers are compatible with this upper?

Expert Answer

Answered by Ethan, Gear Expert, from IL, United States, on October 06, 2022

The Matador Arms Montgo 9mm Upper Receiver is compatible with AR-15 and/or AR-9 lower. AR-15 lowers will require the MagX adapter (or similar) to accept 9mm pistol magazines.

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Scott B, member, from ID, United States, asked on February 27, 2024

I have a new frontier lower that uses mp5 mags, would this work?

Manufacturer Answer

Answered by Matador Arms, Manufacturer from TX, United States, on December 04, 2024

Not this version. The MAT9s will.

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Wesley Gary, member, from PA, United States, asked on December 18, 2022

Can this work with a scorpion lower?

Expert Answer

Answered by Ethan, Gear Expert, from IL, United States, on December 20, 2022

No, the Matador Arms Montgo 9mm Upper Receiver is not compatible with CZ Scorpion lower receivers.

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HawkEye, guest, from NC, United States, asked on November 26, 2022

What is need to add a brace?

Expert Answer

Answered by Ethan, Gear Expert, from IL, United States, on February 22, 2023

The Matador Arms Montgo 9mm Upper Receiver is compatible with standard AR15 pattern lower receivers. Since it does not require a buffer system, you can use buffer tube adapters or a standard buffer tube with a brace equipped.

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Stylish Kyleish, guest, from CA, United States, asked on November 21, 2022

Does this upper have m lok slots on the side, or are those just some kind of vents on the side in the pictures?

Expert Answer

Answered by Hunter, Gear Expert, from OH, United States, on February 21, 2023

The Matador Arms Montgo 9mm Upper Receiver does not have MLOK slots on the side.

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Monkeeman, member, from CA, United States, asked on October 25, 2022

Are the uppers sold factory new or as they used?

Expert Answer

Answered by Hunter, Gear Expert, from OH, United States, on October 31, 2022

These Matador Arms Montgo 9mm Upper Recievers are new.

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Monkeeman, member, from CA, United States, asked on October 21, 2022

Is all the Montgo9 factory new or they already used uppers?

Expert Answer

Answered by Hunter, Gear Expert, from OH, United States, on October 26, 2022

The Matador Arms Montgo 9mm Upper Receiver is a new upper receiver.

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Ewalk, member, from LA, United States, asked on September 03, 2022

Would this work with a standard ar15 lower using something like the endomag?

Expert Answer

Answered by Ethan, Gear Expert, from IL, United States, on September 12, 2022

The Matador Arms Montgo 9mm Upper Receiver is compatible with any AR-15 and/or AR-9 lower. AR-15 lowers will require the MagX adapter (or similar) to accept 9mm pistol magazines.

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Monkeeman, member, from CA, United States, asked on August 31, 2022

Will this sit flush with a stern glock mag adapter? I never seen anyone mix the two together. Any adjustments needed to be made?

Expert Answer

Answered by Ethan, Gear Expert, from IL, United States, on September 09, 2022

The Matador Arms Montgo 9mm Upper Receiver is Compatible with any AR-15 and/or AR-9 lower. AR-15 lowers will require the MagX adapter (or similar - such as Stern Defense) to accept 9mm pistol magazines.

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Q&A for Matador Arms Montgo 9mm Upper Receiver — 15 Questions & 16 Answers