Home / AR Parts / Fm Products / FM Products FM-45 AR Upper Receiver w/ Micro Brake .45 Caliber 10 inch 10in Barrel Ultralight ProfileFlash Supressor Black
FM Products FM-45 AR Upper Receiver w/ Micro Brake .45 Caliber 10 inch 10in Barrel Ultralight ProfileFlash Supressor Black

FM Products FM-45 AR Upper Receiver w/ Micro Brake .45 Caliber 10 inch 10in Barrel Ultralight ProfileFlash Supressor Black

Lowest Price
$352.47
MSRP
$379
Savings
7% off
In Stock at
0 Stores
Updated
Dec 17, 2025

Specifications

MPN
FM45FS109

Description

FM Products FM-45 AR Upper Receiver w/ Micro Brake .45 Caliber 10 inch 10in Barrel Ultralight ProfileFlash Supressor Black. 45 ACP .45 Glock or another 45cal pistol magazine you can feed these FM Products FM-45 Complete Uppers designed by FM Products from the ground up. To ensure the most reliable and accurate shooting experience possible FM Products designed these AR15 Upper Receivers with a monolithic style and a M-LOK compatible handguard and the upper comes with an FM Products Micro Brake muzzle attachment. This FM Products FM-45 Complete Upper .45 Receiver w/ Micro Brake is complete with an FM Products Micro Brake muzzle brake attachment and a bolt carrier group and bolt in place so you can easily install these on your favorite pistol. For added security this upper has an all steel barrel with a Chrome Line finish and it uses match-grade bolts and chambers. Trust this FM Products FM-45 M-LOK Compatible Upper Receiver w/ Micro Brake to deliver premium performance with your pistol caliber rifle. Specifications for FM Products FM-45 AR .45 Upper Receiver w/ Micro Brake: Manufacturer: FM Products Caliber: .45 ACP Barrel Length: 9.875 in Barrel Profile: Ultralight Threads per Inch: 5/8x24 Muzzle Device: Flash Supressor Color: Black Fabric/Material: Premium Match Grade 41V50 Handguard Length: 8.5 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 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 Upper Receiver w/ Micro Brake What firearm models does the manufacturer say FM Products FM-45 AR .45 Upper Receiver w/ Micro Brake is compatible with? The manufacturer suggests that FM Products FM-45 AR .45 Upper Receiver w/ Micro Brake is compatible with AR-15FM Products FM45-FS-110: FM-45 AR Upper Receiver w/ Micro Brake .45 Caliber 10 inch 10in Barrel Ultralight ProfileFlash Supressor Black
Stay Connected

Join our newsletter for the latest updates and exclusive deals.

ARMSAGORA

Compare prices on firearms, ammunition, and accessories from hundreds of trusted retailers. Find the best deals, track prices, and build your own loadouts.

© 2026 ARMSAGORA. All rights reserved.
Not an FFL licensed dealer. ARMSAGORA is a product comparison tool.