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Questions & Answers
Would this kit work with a multi caliber are lower, or is it specifically for pistol lowers?

You can run a .223/5.56 AR lower but you have to get either a mag adapter for Glock that fits in your mag well or you can get some EndoMag conversion inserts to put in gen2/3 Pmags. The only way to get LRBHO is to get FM products dedicated Glock lower.

by Ken Mett, Verified Owner, March 17, 2020
Do the pivot pins, castle nut, end plate, grips, and all the other items shown in the pictures come in this kit. Expert Answer

Yes, this comes with everything you need except for the lower receiver and a trigger guard if your lower doesn't have one built in.

by Ethan C., Gear Expert, March 18, 2020

Product No Longer Available

Unfortunately OpticsPlanet Exclusive FM Products Foxtrot Mike Premium Pistol Builders Kit, 8.5in, 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, 8.5in, FM9

Complete your dream weapon build by using the components of this FM Products Premium Pistol Builders Kit to turn your stripped small frame 9mm Glock-style lower receiver into an unstoppable force in the field, range or backcountry. Each of these AR15 Lower Parts crafted by FM Products is made from the highest quality materials and delivers amazing features that will improve your aim, handling and overall shooting capabilities. For example, the 9.75in ultra-light barrel is machined from 41V50 chrome-molyvanadium steel alloy with a salt bath Nitride QPQ/Melonite finish for maximum durability and premium resistance to corrosion and wear over time. This FM Products OP Exclusive Premium 8.5in Pistol Builders Kit includes a forward blast diffuser that mitigates muzzle rise and reduces recoil for pinpoint precision with every shot you take. You'll also create a more reliable weapon by installing this kit since the 6.4oz. heavy buffer ensures proper and smooth cycling with every round chambered, and it even further dampens recoil to help you land difficult shots and get back to target quicker than ever before. Check out the features below to explore all the ways this bundle will improve your firearm, and pick up your FM Products OpticsPlanet Exclusive Premium 8.5in Pistol Build Kit right here to see them all in action.image

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

  • Available exclusively from OpticsPlanet
  • FM 9 8.5in 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 8.5in 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 Diffuser:
  • 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 Diffuser

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OpticsPlanet Exclusive FM Products Foxtrot Mike Premium Pistol Builders Kit, 8.5in, FM9 Unavailable & Discontinued Models

List of Unorderable Models

  • OpticsPlanet Exclusive FM Products Premium Pistol Builders Kit, 8.5in, FM9, Black, FM-8.5-PPBC , MPN: FM-8.5-PPBC , Code: 3JR-URC-FMKIT3-FM-8-5-PPBC
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