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Questions & Answers
Am I correct in assuming this upper will fit the FM 45 AR Pistol lower that I already have ? Expert Answer

Yes, the FM Products FM-45 AR .45 Rear Charging Upper Receiver will fit and function with an FM45 AR lower receiver.

by Ethan, Gear Expert, August 17, 2022
Does it fit on a standard ar15 lower receiver? Expert Answer

The FM Products FM-45 AR .45 Rear Charging Upper Receiver is designed to fit any pistol caliber lower receiver that uses Glock magazines.

by Ethan, Gear Expert, June 2, 2022
Caliber:
.45 ACP
Barrel Length:
16 in
Barrel Profile:
Ultralight
Muzzle Device:
Flash Supressor
Color:
Black
Fabric/Material:
Premium Match Grade 41V50
Handguard Length:
15 in
Gun Rail:
Picatinny
Gun Make:
AR Platform
Gun Model:
AR-15
Barrel Material:
4150 Chrome Moly Vanadium
Bolt Carrier Group Included:
MIL-SPEC
Charging Handle Included:
MIL-SPEC
Magazine Included:
No
Condition:
Factory DEMO
Mount Type:
M-LOK
Threads per Inch:
5/8x24

Code: 3JR-URC-FRC45RS-FM45-RS-1615-DEMO

MPN: FM45-RS-1615-DEMO

Product No Longer Available

Product Info for FM Products FM-45 AR .45 Rear Charging Upper Receiver w/ Micro Brake

Surround yourself with premium features when you install this FM Products FM-45 AR .45 Rear Charging Upper Receiver w/ Micro Brake. For complete concealment, these AR15 Upper Receivers by FM Products come with a built-in micro flash suppressor that greatly reduces muzzle rise to keep you hidden. The proprietary handguard / upper interlock on this FM Products FM-45 Rear Charging Upper Receiver creates a monolithic look that draws the eye without a doubt. The quality of the materials and craftsmanship is apparent in every aspect of this upper receiver. Every single component is constructed out of 41V50 chrome moly vanadium steel, offering you the most durable and reliable firearm possible. The slim-line handguard offers plenty of mounting space for your favorite accessories. You can even mount a pistol magazine using an adaptable Glock mag base. This FM Products FM-45 Rear Charging Upper Receiver is compatible with 45 caliber Glock magazines, ensuring easy access to your hot cartridges. Keep your weapon secure with the included FM Products micro brake.image

Features of FM Products FM-45 AR .45 Rear Charging Upper Receiver w/ Micro Brake:

  • Proprietary handguard / upper interlock keeps handguard true to the upper;
  • Premium Match Grade 41V50 Barrel;
  • M-LOK compatible handguard;
  • Complete upper includes bolt carrier group and charging handle;
  • FM Products Micro Brake (5/8-24 thread);
  • Compatible with 45 Cal Glock magazines

Package Contents:

  • FM Products FM-45 AR .45 Rear Charging Upper Receiver w/ Micro Brake

Gun Triggers

1–15 / 15
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Gun Barrels

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FM Products FM-45 AR .45 Rear Charging Upper Receiver w/ Micro Brake Accessories

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Gun Parts and Accessories

1–29 / 29
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Gunsmithing Tools & Accessories

1–16 / 16
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Magazine and Accessories

1–20 / 20
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Gun Sights

1–18 / 18
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Gun Stocks

1–19 / 19
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Mounts, Rings and Accessories

1–20 / 20
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Related Products to FM Products FM-45 AR .45 Rear Charging Upper Receiver w/ Micro Brake

FM Products FM-45 AR .45 Rear Charging Upper Receiver w/ Micro Brake Unavailable & Discontinued Models

List of Unorderable Models

  • DEMO, FM Products FM-45 AR Rear Charging Upper Receiver w/ Micro Brake, .45 Caliber, Ultralight Profile, Black, FM45-RS-1615 , MPN: FM45-RS-1615-DEMO , Code: 3JR-URC-FRC45RS-FM45-RS-1615-DEMO
  • FM Products FM-45 AR Rear Charging Upper Receiver w/ Micro Brake, .45 Caliber, Ultralight Profile, Black, FM45-RS-1615 , MPN: FM45-RS-1615 , Code: 3JR-URC-FRC45RS-FM45-RS-1615
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