Home / AR Parts / Fm Products / FM Products FM-45 AR Rear Charging Upper Receiver w/ Micro Brake .45 Caliber Ultralight Profile Black
FM Products FM-45 AR Rear Charging Upper Receiver w/ Micro Brake .45 Caliber Ultralight Profile Black
Lowest Price
$436.17
MSRP
$469
Savings
7% off
In Stock at
0 Stores
Updated
Dec 17, 2025
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Specifications
Brand
MPN
FM45RS1615
Description
FM Products FM-45 AR Rear Charging Upper Receiver w/ Micro Brake .45 Caliber Ultralight Profile Black. 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. Specifications for FM Products FM-45 AR .45 Rear Charging Upper Receiver w/ Micro Brake: Manufacturer: FM Products Caliber: .45 ACP Barrel Length: 16 in Barrel Profile: Ultralight Threads per Inch: 5/8x24 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 Condition: New Barrel Material: 4150 Chrome Moly Vanadium Bolt Carrier Group Included: MIL-SPEC Magazine Included: No Charging Handle Included: MIL-SPEC Mount Type: M-LOK 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 What firearm models does the manufacturer say FM Products FM-45 AR .45 Rear Charging Upper Receiver w/ Micro Brake is compatible with? The manufacturer suggests that FM Products FM-45 AR .45 Rear Charging Upper Receiver w/ Micro Brake is compatible with AR-15FM Products FM45-RS-1616: FM-45 AR Rear Charging Upper Receiver w/ Micro Brake .45 Caliber Ultralight Profile Black
