Enjoy free shipping during the holidays! Shop now and get
Free Value Shipping
on most orders over $49 to the contiguous 48 states, DC and to all U.S. Military APO/FPO/DPO addresses.
Enjoy Our Extended FREE RETURNS
We want to ensure that making a return is as easy as possible! With our Hassle-Free, Extended
Holiday Returns, eligible orders placed from November 12, 2025 on will benefit from an extended
return deadline (January 13, 2026 or 30 days after receipt of your order - whichever is later).
We'll even cover the cost of return shipping. Learn more about our
Return Policy.
Please Enable Your Browser's Cookies Functionality
Cookies are not currently enabled in your browser, and due to this the functionality of our site will be severely restricted.
Web browser based cookies allow us to customize our site for you, save items in your cart,
and provide you with a great experience when shopping OpticsPlanet.
Your privacy is important to us, and any personal information you supply to us is kept strictly confidential.
If you cannot enable cookies in your browser, please contact us — we are always here to help!
JavaScript is blocked by AdBlocker or ScriptBlocker
We're sorry - it looks like some elements of OpticsPlanet are being disabled by your AdBlocker.
Unfortunately we are unable to offer our excellent shopping experience without JavaScript.
Please add "opticsplanet.com" and "https://opl.0ps.us/assets-ac483a73966/" to whitelist,
or disable AdBlocker for this site (please note that we do NOT feature any annoying ads on this website).
Thanks!
Your Browser is Outdated
Unfortunately, we are unable to provide an excellent shopping experience on your browser because it lacks modern functionality needed for us
to provide a fast, secure, and enjoyable experience. If you cannot upgrade your browser or use an alternative device to visit us,
please contact us at +1-800-504-5897 and we'll be happy to assist you over the phone!
Reviews & Ratings for FM Products FM-45 AR .45 Upper Receiver w/ Micro Brake
— 6 reviews — Page 1
(6 reviews)
FM Products FM-45 AR .45 Upper Receiver w/ Micro Brake
This is a re-rating. I was sent the 9mm by mistake. Quick turnaround I sent the 9 back on Fri and received the 45 on Wednesday. I installed it on a ar45 lower I built with a echo trigger. I have a 9mm with the same echo sport trigger they are a blast at the range.
I ordered a FM Products FM-45 AR .45 Upper Receiver w/ Micro Brake 8.5 in and got a 9mm 10 in
I sent the emails with pictures then had to call. Instead of shipping out the CORRECT one they are requiring me to ship the INCORRECT one back and when they receive it they want me to call to have them sen...
Read More...
by
datgypsy,
Verified Owner
from AL, United States
Written on November 29, 2023
Very solid well engineered well manufactured it what I noticed ……………………….6…….. …………………….9……..6……..I’m writing more about the product they don’t seem to kno that when speaking to a person about firearms, especially if they are interested enough to weight the opinion of a stranger in the form of a review the person may just nod and go “hmmmm” and you kno this individual is picking up exactly what you’re saying. Two eyes two hears one mouth saying it half long and twice strong
Would recommend: Yes
0 of 3 found the following review helpful.
Was it helpful to you?Yes|No
You said this review was not helpful.
Would you like to change your vote?
by
Tony,
Verified Owner
from AR, United States
Written on March 22, 2023
I just received this upper and upon opening it, found I had gotten a 10” ar45 instead of an 8.5” ar45. Luckily it’s still 45, everything looks and feels nice, but it would have been nice to get what is advertised and why was purchased. Recommend not to buy if your expecting the correct part to show up
Pros:
5 stars for FM, 3 stars for optics planet
great product received
Cons:
Wrong product received.
Would recommend: No
0 of 0 found the following review helpful.
Was it helpful to you?Yes|No
You said this review was not helpful.
Would you like to change your vote?
by
Brent,
Verified Owner
from TN, United States
Written on February 19, 2023
Wow is all I can say about this upper! Craftsmanship is top notch this is the second FM I own. I also own a FM9 which is what lead me to buy this upper also. It’s great quality for sure. The forward charging is awesome and smooth! OP did send me the correct one I saw others say they will send you a 9mm upper but I did receive the correct FM45 upper and at a unbeatable price! Thanks OP!
Would recommend: Yes
3 of 3 found the following review helpful.
Was it helpful to you?Yes|No
You said this review was not helpful.
Would you like to change your vote?
by
don,
Verified Owner
from TN, United States
Written on May 17, 2022
I got this upper in 45cal. I received it 2 days ago opened the box it was a 9mm. I called the customer service guy was really nice about and sent me an email for an RMA to get it swapped out. They paid shipping after 3 days I get an email saying they had received it back and it could take 10 to process. So I guess we will see how it goes. It was a really nice upper well built. I'll get back with revised review once it's done. I thought it got here too quickly it said up to 9 weeks to get and it had only been 2. I guessing it will be a little bit before I get the correct one, I haven't received my lower yet so it's no big deal.
Would recommend: Yes
3 of 4 found the following review helpful.
Was it helpful to you?Yes|No
You said this review was not helpful.
Would you like to change your vote?