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FM Products MIKE-45 .45 ACP Build Kit

FM Products MIKE-45 .45 ACP Build Kit, 16 inch, Front Charge, 4-Port Micro Brake, Black, MIKE45K-F1615-4T-MMKIT
FM Products MIKE-45 .45 ACP Build Kit, 5 inch, Mil-Spec Rear Charge, Black, MIKE45K-R54-BT-MMKIT
FM Products MIKE-45 .45 ACP Build Kit, 10 inch, Front Charge, 4-Port Micro Brake, Black, MIKE45K-F109-BT-MMKIT
FM Products MIKE-45 .45 ACP Build Kit, 16 inch, Mil-Spec Rear Charge, 4-Port Micro Brake, Black, MIKE45K-R1615-4T-MMKIT
FM Products MIKE-45 .45 ACP Build Kit, 16 inch, Front Charge, 4-Port Micro Brake, Black, MIKE45K-F1615-4T-MMKIT
FM Products MIKE-45 .45 ACP Build Kit, 5 inch, Mil-Spec Rear Charge, Black, MIKE45K-R54-BT-MMKIT
FM Products MIKE-45 .45 ACP Build Kit, 10 inch, Front Charge, 4-Port Micro Brake, Black, MIKE45K-F109-BT-MMKIT
FM Products MIKE-45 .45 ACP Build Kit, 16 inch, Mil-Spec Rear Charge, 4-Port Micro Brake, Black, MIKE45K-R1615-4T-MMKIT
FM Products MIKE-45 .45 ACP Build Kit, 16 inch, Front Charge, 4-Port Micro Brake, Black, MIKE45K-F1615-4T-MMKIT
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FM Products MIKE-45 .45 ACP Build Kit, 16 inch, Front Charge, 4-Port Micro Brake, Black, MIKE45K-F1615-4T-MMKIT
FM Products MIKE-45 .45 ACP Build Kit, 5 inch, Mil-Spec Rear Charge, Black, MIKE45K-R54-BT-MMKIT
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FM Products MIKE-45 .45 ACP Build Kit, 5 inch, Mil-Spec Rear Charge, Black, MIKE45K-R54-BT-MMKIT
FM Products MIKE-45 .45 ACP Build Kit, 10 inch, Front Charge, 4-Port Micro Brake, Black, MIKE45K-F109-BT-MMKIT
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FM Products MIKE-45 .45 ACP Build Kit, 10 inch, Front Charge, 4-Port Micro Brake, Black, MIKE45K-F109-BT-MMKIT
FM Products MIKE-45 .45 ACP Build Kit, 16 inch, Mil-Spec Rear Charge, 4-Port Micro Brake, Black, MIKE45K-R1615-4T-MMKIT
4 of 8 images
FM Products MIKE-45 .45 ACP Build Kit, 16 inch, Mil-Spec Rear Charge, 4-Port Micro Brake, Black, MIKE45K-R1615-4T-MMKIT
FM Products MIKE-45 .45 ACP Build Kit, 16 inch, Front Charge, 4-Port Micro Brake, Black, MIKE45K-F1615-4T-MMKIT
5 of 8 images
FM Products MIKE-45 .45 ACP Build Kit, 16 inch, Front Charge, 4-Port Micro Brake, Black, MIKE45K-F1615-4T-MMKIT
FM Products MIKE-45 .45 ACP Build Kit, 5 inch, Mil-Spec Rear Charge, Black, MIKE45K-R54-BT-MMKIT
6 of 8 images
FM Products MIKE-45 .45 ACP Build Kit, 5 inch, Mil-Spec Rear Charge, Black, MIKE45K-R54-BT-MMKIT
FM Products MIKE-45 .45 ACP Build Kit, 10 inch, Front Charge, 4-Port Micro Brake, Black, MIKE45K-F109-BT-MMKIT
7 of 8 images
FM Products MIKE-45 .45 ACP Build Kit, 10 inch, Front Charge, 4-Port Micro Brake, Black, MIKE45K-F109-BT-MMKIT
FM Products MIKE-45 .45 ACP Build Kit, 16 inch, Mil-Spec Rear Charge, 4-Port Micro Brake, Black, MIKE45K-R1615-4T-MMKIT
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FM Products MIKE-45 .45 ACP Build Kit, 16 inch, Mil-Spec Rear Charge, 4-Port Micro Brake, Black, MIKE45K-R1615-4T-MMKIT

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Questions & Answers
What mag adapter does it use

This is the reply I got from FM. to my knowledge there are no conversion kits for an standard lower to take glock mags as the .45 glock mag is wider than a mil spec AR mag well

--

Colten Lebrun
Technical support / Warranty Manager
info@fm-products.com

by Semperfidelis, Verified Owner, January 8, 2025
What Glock compatible lower would I need for this upper ?

Foxtrot Mike FM45, Pro2A tactical, Spartan (Joe Bob Outfitters) or a primary arms would work. Best LRBHO is on the FM45.

by Michael, Verified Owner, October 10, 2025
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Negative Review
FM 45 do not buy by Bill, Verified Owner, December 10, 2024
First, I love my 4 Foxtrot Mike FM 9s. As well as 4 others I convinced my fellow shooters to get. Myself and a buddy decided to build a couple FM 45s. Unfortunately Every piece of brass from 4 MFG of 230gr ammo (Win,Fed,Blaz,Fio) and hand loads with ...
Read More...
8/8 found this helpful
Read 1 Review

Product Discontinued by Manufacturer

FM Products MIKE-45 .45 ACP Build Kit 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 MIKE-45 .45 ACP Build Kit

Intended to be a superb item for almost anyone, we are positive you will appreciate the FM Products MIKE-45 .45 ACP Build Kit.image

These AR15 Upper Receivers through the expert product experts at FM Products are fashioned by using heavy duty and reliable resources, as a way to provide you with product that is going to be effective for many years. Manufactured using some of the best available substances and design, these AR15 Upper Receivers from the product professionals at FM Products can last you an incredibly long time.

FM Products has been making high-quality merchandise for a number of years, and the FM Products MIKE-45 .45 ACP Build Kit is their particular means of demonstrating just how much they are concerned.

At OpticsPlanet, we ensure that it is our obligation to get the most suitable product for all your specifications, and showcasing the FM Products MIKE-45 .45 ACP Build Kit is something that we're delighted to offer.

Package Contents:

  • FM Products MIKE-45 .45 ACP Build Kit
  • Thril Rugged Tactical Grip
  • Mega Mass Buffer
  • XL Buffer Tube
  • Recoil Spring

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FM Products MIKE-45 .45 ACP Build Kit Unavailable & Discontinued Models

List of Unorderable Models

  • FM Products MIKE-45 .45 ACP Build Kit, 16 inch, Front Charge, 4-Port Micro Brake, Black, MIKE45K-F1615-4T-MMKIT , MPN: MIKE45K-F1615-4T-MMKIT , Code: 3JR-URC-M45BK-MIKE45K-F1615-4T-MMKIT
  • FM Products MIKE-45 .45 ACP Build Kit, 5 inch, Mil-Spec Rear Charge, Black, MIKE45K-R54-BT-MMKIT , MPN: MIKE45K-R54-BT-MMKIT , Code: 3JR-URC-M45BK-MIKE45K-R54-BT-MMKIT
  • FM Products MIKE-45 .45 ACP Build Kit, 10 inch, Front Charge, 4-Port Micro Brake, Black, MIKE45K-F109-BT-MMKIT , MPN: MIKE45K-F109-BT-MMKIT , Code: 3JR-URC-M45BK-MIKE45K-F109-BT-MMKIT
  • FM Products MIKE-45 .45 ACP Build Kit, 16 inch, Mil-Spec Rear Charge, 4-Port Micro Brake, Black, MIKE45K-R1615-4T-MMKIT , MPN: MIKE45K-R1615-4T-MMKIT , Code: 3JR-URC-M45BK-MIKE45K-R1615-4T-MMKIT
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