Q&A for TacFire .45 ACP Complete Upper Assembly

TacFire .45 ACP Complete Upper Assembly

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John, member, from LA, United States, asked on December 14, 2022

Will this upper work with Glock magazines

Expert Answer

Answered by Hunter, Gear Expert, from OH, United States, on January 10, 2023

The manufacturer does not state what magazines the TacFire .45 ACP Complete Upper Assembly is compatible with. I recommend contacting TacFire for that information.

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James, member, from MI, United States, asked on October 15, 2025

Will this upper function properly with the stern defense m&p45 Magwell conversion?

Manufacturer Answer

Answered by TACFIRE INC., Manufacturer from AL, United States, on October 29, 2025

No, our BCG's are only compatible with Glock or Colt mags

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Nak-9, guest, from WA, United States, asked on August 11, 2025

Hello, Do to the barrel being under 16"in do I need a Tax stamp? I live in Washington state.

Manufacturer Answer

Answered by TACFIRE INC., Manufacturer from AL, United States, on August 21, 2025

It is not our responsibility to follow up with you local and state laws. Therefore, we ask that you defer any legality questions to your local FFL

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Michael, member, from IA, United States, asked on July 09, 2025

Im very curious if anyone has tried to run 45 super in the tac fire 45 acp uppers. Massive potential if it can handle them. I would think they could.

Manufacturer Answer

Answered by TACFIRE INC., Manufacturer from AL, United States, on August 21, 2025

Hypothetically it will run. However the issue that comes into play would be excessive barrel wear after tweaking with the recoil system. We recommend just sticking with .45ACP

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Shifuharms, member, from ID, United States, asked on October 15, 2024

what Lower have people paired this with?

Manufacturer Answer

Answered by TACFIRE INC., Manufacturer from AL, United States, on January 02, 2025

Pretty much all PCC lowers that accommodate Glock/Colt magazines. The main factor for functionality is the height of the ejector.

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tom krummel, member, from WI, United States, asked on June 30, 2024

does it come with a bolt and charging handle

Manufacturer Answer

Answered by TACFIRE INC., Manufacturer from AL, United States, on February 17, 2025

Yes, all TacFire built uppers contain all parts needed to function.

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Paul, member, from FL, United States, asked on March 13, 2024

is a BCG included?

Manufacturer Answer

Answered by TACFIRE INC., Manufacturer from AL, United States, on February 17, 2025

Yes, all TacFire built uppers contain all parts needed to function.

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Mike, member, from TN, United States, asked on July 30, 2022

Mounting on a standard, mil-spec lower, which magazines and adaptor are recommended?

Expert Answer

Answered by Hunter, Gear Expert, from OH, United States, on August 09, 2022

The manufacturer does not state what magazine and adapter is compatible with the TacFire .45 ACP Complete Upper Assembly. I recommend contacting TacFire for that information.

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David, guest, from WA, United States, asked on June 07, 2022

Is it threaded for a suppressor?

Answered by Alex Lerash, member, from MI, United States, on July 03, 2022

Not 1/2x28! It is 5/8x32

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zach Gillette, member, from MO, United States, asked on May 25, 2022

I have a radical firearms 556 ar15, I was wondering if this upper would work on it? Also would I need to change buffer weight or buffer spring?

Answered by Jay Johnson, member, from FL, United States, on November 25, 2022

From what I’ve read as I’m building this firearm it’s made to use a 7.5 to 10oz buffer. The 10oz would be best for a suppressor.

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Q&A for TacFire .45 ACP Complete Upper Assembly — 10 Questions & 13 Answers

Will this upper work with Glock magazines

Will this upper function properly with the stern defense m&p45 Magwell conversion?

Hello, Do to the barrel being under 16"in do I need a Tax stamp? I live in Washington state.

Im very curious if anyone has tried to run 45 super in the tac fire 45 acp uppers. Massive potential if it can handle them. I would think they could.

what Lower have people paired this with?

does it come with a bolt and charging handle

is a BCG included?

Mounting on a standard, mil-spec lower, which magazines and adaptor are recommended?

Is it threaded for a suppressor?

I have a radical firearms 556 ar15, I was wondering if this upper would work on it? Also would I need to change buffer weight or buffer spring?

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Q&A for TacFire .45 ACP Complete Upper Assembly — 10 Questions & 13 Answers