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Questions & Answers
Does FM make this or a similar .45 that's forward or side charging instead of rear?

Yes. FM Products does make front charge uppers chambered in .45 ACP.

by David Black, Verified Owner, December 28, 2024
Do all FM uppers delete the need for a buffer tube and there for are shoot able without a stock? Expert Answer

This FM Products FM-45 AR .45 Rear Charging Upper Receiver as well as most FM products require the use of a buffer assembly. However, FM Products has just released a newly designed upper chambered in .223 Wylde that does not require the use of a buffer assembly due to the redesigned recoil system. That upper can be found by using the link below:
https://www.opticsplanet.com/fm-products-fm-15-223-wylde-mid-length-gen-2-upper-reciever.html

by Ethan, Gear Expert, August 9, 2022
Customer Reviews
Helpful Positive Review
Solid build and as described in image by Jando Rones, Verified Owner, September 12, 2023
Another reviewer indicated that he received his upper with a shorter handguard, I can confirm that the handguard comes with two rows of M-Lok slots and comes as pictured and described. It's a solidly constructed unit with a high qauality bolt carrie...
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2/2 found this helpful
Helpful Positive Review
Fm-45 5inch by Nathan, Verified Owner, April 25, 2023
Just received my product today haven’t shot it yet. Leaving the review to let customers know the product pictured is incorrect. The picture shows a flush look handguard with two m lok slots, this is not what I received. I was sent a 3 inch handguard ...
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2/2 found this helpful
Helpful Negative Review
Not as pictured by JESSE, Verified Owner, December 13, 2023
Just opened the box and can confirm here also that what I received was not as pictured. Only one mloc slot and brake sticks out front. I will actually measure the barrel. They will say that the picture is just a representation of the item, but it sho...
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1/1 found this helpful
Most Recent Reviews
Foxtrot mike by Francisco, November 3, 2024
Great quality good price worth every penny foxtrot mike has great customer service
Most Recent Reviews
45 acp upper by Ravdog, Verified Owner, November 1, 2024
Very nice upper shoots straight no malfunctions at all. Best of all can’t beat the price.
Most Recent Reviews
I love this product is excellent. I shot Hunter Shad with it and it’s perfect. I give a five stars.
0/1 found this helpful
Read All 6 Reviews

Product Discontinued by Manufacturer

FM Products FM-45 AR .45 Rear Charging Upper Reciever, 5 inch w/ Blast Diffuser has been discontinued by FM Products and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Gun Parts, AR 15 Parts, Rifle Parts, AR15 Upper Receivers yourself to try and find the perfect replacement for you!

Product Info for FM Products FM-45 AR .45 Rear Charging Upper Reciever, 5 inch w/ Blast Diffuser

The Foxtrot Mike Products FM-45 Complete 45 Cal Upper Receiver is built from the ground up to provide outstanding reliability and accuracy with a host of top tier features. The monolithic style has been achieved with a proprietary interlock between the upper and handguard. The slim-line handguard is M-LOK compatible for your favorite accessories.image

The Foxtrot Mike Products 45 Cal Upper Receiver comes fully assembled and ready to drop on any pistol caliber lower receiver that uses Glock magazines. With its full-length Picatinny top rail and M-LOK compatible handguard, the Foxtrot Mike 45 Cal Upper offers plenty of mounting space for optics and other accessories.

Features of FM Products FM-45 AR .45 Rear Charging Upper Reciever, 5 inch w/ Blast Diffuser

  • Proprietary handguard / upper interlock keeps handguard true to the upper;
  • Premium Match Grade 41V50 Barrel;
  • M-LOK compatible handguard;
  • Complete upper includes bolt carrier group and charging handle;
  • FM Products Micro Brake (5/8-24 thread);
  • Compatible with 45 Cal Glock magazines

Package Contents:

  • FM Products FM-45 AR .45 Rear Charging Upper Reciever, 5 inch w/ Blast Diffuser

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Related Products to FM Products FM-45 AR .45 Rear Charging Upper Reciever, 5 inch w/ Blast Diffuser

FM Products FM-45 AR .45 Rear Charging Upper Reciever, 5 inch w/ Blast Diffuser Unavailable & Discontinued Models

List of Unorderable Models

  • FM Products FM-45 AR .45 Rear Charging Upper Reciever, 5 inch w/ Blast Diffuser, Black, FM45-RS-54 , MPN: FM45-RS-54 , UPC: 3539026 , Code: 3JR-URC-FRC45R5-FM45-RS-54
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