Foxtrot Mike Products FM-15 GEN 2 Side Charging AR-15 Upper Receiver - 13.9"
Details
Details
The Foxtrot Mike Products FM-15 Gen 2 Side Charging AR-15 Upper Receiver features a unique dual spring recoil system nested in the top of the upper receiver allowing the use of a folding stock. This recoil system is paired with a mid-length direct impingement gas system and a proprietary lightweight bolt carrier group for a smooth and reliably functioning rifle. The gas block features an indexing pin and a coil pin to keep it locked in place against the lightweight contoured barrel for an extremely robust system.
Features:
- Machined from a billet of aluminum
- 4 Position side charging handle
- Slim M-LOK handguard
- Proprietary recoil system allows the use of a folding stock
- .223 Wylde chambering
- Proprietary lightweight BCG
- Picatinny rail adapter with QD sling mount
- 13.9" Pinned and welded barrel
- Mid-length gas system
- Dead Air KeyMo muzzle brake
- Compatible with Mil-Spec lowers (buffer and buffer spring will not be used)
The barrel features a .223 Wylde chamber and a 1:8 twist rate for compatibility with a wide range of ammunition. Additionally, it features a lightweight contour and at 13.9 inches in length, it has a pinned and welded muzzle brake to bring the overall length to 16 inches. The Dead Air KeyMo muzzle brake is compatible with KeyMo quick detach suppressors.
Specifications
California Prop 65 warning
WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.Ratings & Reviews
3 reviews
The Perfect Hiking Rifle!
by Organic Bee
I wanted to make a rifle like my Sig Spear but lighter, thinner, and more compact so I can stuff it in my hiking bag. Yet I wanted there to be plenty of room to carry all my other essentials and 2-3 extra mags.
Let me tell you how perfectly the FM15(13.9” Primary Arms) fit all of those requirements!
First of all, it weighs so much less than my Sig Spear or any of my ARs in this caliber or length. It is so slim compared to any of my rifles. And finally, the weight of the rifle is quite shocking when you initially pick it up. I love stuffing it in my North Face bag. Whenever I need it, I can quickly retrieve it and fire(with the stock folded or not). All of my friends are envious of my build so 5/6 of them decided to order this upper.
I highly recommend this upper or rifle as a while. It has been very reliable for me(1200 rounds so far).
Cool fun gun, but wouldn't rely on it
by Eric
For the price, its a great for plinking. Had more in-depth review but hit 1k character limit.
Pros
-The barrel is good enough, gotten ~2" moa w/ m193/m855.
-Brake is Keymo if you got Deadair and it does a good job of causing overpressure
-Install of the bolt stop for the buffer tube was easy
-Can fire folded (why I wanted to try it)
Cons:
-All proprietary, have to call FM for parts
-The charging handle sucks, you will at least cheese grate your hand once when doing remedial for stoppages.
-The bolt can get stuck beyond the bolt stop and requires additional charge to unstick.
-Steel case is not recommended but mfg says you can shoot it after about "300" round break-in period. FTE happened almost every other round. It does "work" after break-in and it was ~300rds.
-Doing remedial for stoppages suck without a bad lever.
-The springs seem like they have issues when the gun gets dirty and bolt needs liberal amount of lube to continue. Fired about 500rds w/o cleaning and it did not like it.
Great upper
by Jordan
Ran this upper in a carbine class today, ~600 rounds suppressed without a hiccup. Solid product with great customer service.