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Questions & Answers
Will this upper fit a mil spec multi cal AR lower with an insert in the magwell? Expert Answer

Yes it will, as long as you use a Glock magazine adapter in the magwell. It will not work with a Colt-style adapter.

by Ethan C., Gear Expert, October 16, 2019
Customer Reviews
Helpful Positive Review
A Great Kit by SirKickington, Verified Owner, April 11, 2020
This build kit comes with everything except a lower receiver. Quality from Foxtrot Mike is always great. I have the FM lower receiver as well. I haven’t had any issues with feeding and the LRBHO works as it should. Upper and BCG worked flawlessly.
1/1 found this helpful
Helpful Positive Review
Great build kit by TheCco, November 25, 2019
This is a extremely nice kit especially for the price. Ive wanted a 9mm for a while but was hesident to drop 700-1000 for most of the kits out there; so i took a chance on this one and glad I did. Overall if your on the fence do it youll be pleasantl...
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2/2 found this helpful
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Product No Longer Available

Unfortunately OpticsPlanet Exclusive FM Products Foxtrot Mike Premium Pistol Builders Kit, 10.5in, FM9 is not listed by OpticsPlanet.You can also explore other items in the Gun Parts, AR 15 Parts, Rifle Parts, Firearm Braces, AR15 Upper Receivers, AR15 Lower Parts yourself to try and find the perfect replacement for you!

Product Info for OpticsPlanet Exclusive FM Products Foxtrot Mike Premium Pistol Builders Kit, 10.5in, FM9

If you own a stripped small frame 9mm Glock-style lower receiver, then you can use this FM Products Premium Pistol Builders Kit to create a more versatile, accurate and reliable firearm for use at the range, in the field, or out on the hunting grounds. There's a wide variety of features these FM Products AR15 Lower Parts deliver, starting with a 6.4oz. heavy buffer that ensures smooth cycling while reducing felt recoil for an elevated shooting experience. This FM Products OP Exclusive Premium 10.5in Pistol Builders Kit includes a rugged M-LOK handguard crafted from 6061-T6 aluminum with steel barrel nuts and screws that gives you all the accuracy-amplifying advantages of a free-floating barrel while still offering 7 rows of M-LOK slots and a full-length Picatinny rail on top so that you can add on the sights, light and other accessories that will improve your game. The ultra-light 9.75in barrel included with this kit is crafted from 41V50 chrome-molyvanadium steel alloy complete with a salt bath Nitride QPQ/Melonite finish so that it can handle anything you come across in the field, including corrosive elements. This FM Products OpticsPlanet Exclusive Premium 10.5in Pistol Build Kit is only available here, and all the included components are sure to boost your shooting skills while creating a more comfortable and fun shooting experience. Pick up yours today to explore the full capabilities of your current lower receiver.image

Features of OpticsPlanet Exclusive FM Products Foxtrot Mike Premium Pistol Builders Kit:

  • Available exclusively from OpticsPlanet
  • FM 9 10.5in Upper Receiver:
  • Traditional M4 charging handle has been replaced with an ambidextrous, non reciprocating forward charging handle
  • Monolithic Style Upper Receiver:
  • Coated in Type 3 Hard Anodizing
  • Proprietary interlock between the upper and handguard
  • Guarantees the barrel nut can never come loose with hard use
  • Reduces weight and feels great
  • Ultra Slim 10.5in M-LOK Handguard:
  • Proprietary barrel nut is machined from steel
  • The free floated rail is machined from durable 6061-T6 aluminum and mounts to the barrel nut with eight high strength stainless steel screws
  • Seven rows of M-LOK slots and a full-length Picatinny rail up top
  • FM-9 9mm 9.75in Ultra Light Barrel:
  • Precision-machined from high-grade, 41V50 chrome-molyvanadium steel alloy
  • Button-rifled
  • Built with integrated feed ramps
  • 1-10 twist
  • Made from Premium 41V50 Match Grade barrel blanks
  • Premium FM9 Glock Style Bolt Carrier Group:
  • 1-piece design
  • Compatible with all Glock Style 9MM Pistol Caliber AR builds
  • Carrier machined from pre-hardened Premium 4340 Steel
  • Comes with a removable weight
  • S7 Extractor, a Premium 17-4 SS Firing Pin coated in Nickel Boron, and a 17-4 SS M67 Firing Pin Retainer
  • FM9 Forward Blast Device:
  • Reduces muzzle rise and recoil
  • Machined from steel and finished with Salt Bath Nitride
  • FM Mils Spec GI Trigger:
  • Salt Bath Nitride
  • 6.4oz. Heavy Buffer:
  • Ensures reliable cycling
  • Requires no spacer and helps prevent bolt catch breakage
  • Coated in Salt Bath Nitride

Package Contents:

  • OpticsPlanet Exclusive FM Products Foxtrot Mike Premium Pistol Builders Kit
  • 6.4 Ounce Heavy Buffer
  • Premium .308 Carbine Recoil Spring
  • 7075 T6 Pistol Buffer Tube, 1.1in Diameter and coated in Type 3 Hard Anodize
  • Ambidextrous Safety Selector
  • Anti Rotation Trigger and Hammer Pins
  • FM Products Foxtrot Mike Rail Covers
  • Free FM Products Foxtrot Mike Pistol Brace, with spacers to adjust the length of pull
  • Forward Blast Device

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OpticsPlanet Exclusive FM Products Foxtrot Mike Premium Pistol Builders Kit, 10.5in, FM9 Unavailable & Discontinued Models

List of Unorderable Models

  • OpticsPlanet Exclusive FM Products Premium Pistol Builders Kit, 10.5in, FM9, Black, FM-10.5-PPBC , MPN: FM-10.5-PPBC , Code: 3JR-URC-FMKIT2-FM-10-5-PPBC
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