Description
Note: This AR-15 complete upper receiver assembly has a barrel length under 16” and is therefore subject to all NFA rules and regulations. Know your local laws before purchasing.
Designed for Glock-style lower receivers, this compact upper offers a robust platform for your next AR-9 build. It features a 4" lightweight barrel made from durable 4150 steel, with a black nitride finish for enhanced corrosion resistance. The barrel is paired with a micro blast diffuser that extends past the 4.5" free float M-LOK handguard, effectively managing muzzle blast and enhancing control.
Features:
- Compatible with GLOCK-style lowers
- Chambered in 9mm
- 4” lightweight barrel
- Comes equipped with a micro blast diffuser
- 4.5” free float M-LOK handguard
- Billet aluminum receiver
- Type III hardcoat anodized finish
- Full length Picatinny rail
- Ambidextrous, non-reciprocating charging handle
The upper receiver is crafted from billet aircraft-grade aluminum and finished with a Type III hard anodized coating, ensuring long-lasting durability. The handguard's monolithic design aligns seamlessly with the flat top upper receiver, providing a secure fit that won't loosen during use. Additionally, it has a full-length Picatinny rail for easy attachment of accessories.
Manufacturers Note:FM Products does not support the following items, using these may void the lifetime warranty associated with our uppers;
1) FM Products does not support Aluminum Cased ammo. Blow backs have a much higher pressure spike in the chamber than a handgun. Using Aluminum cased ammo in a blow back PCC is dangerous and will void the lifetime warranty of an FM Products Upper Receiver.
2) FM Products does not support import magazines besides OEM Glock magazines. We recommend Magpul, OEM Glock and ETS magazines only.
3) FM Products does not support Spikes Glock style lower receivers. The LRBHO requires consumers to modify the FM Products upper, to make egress for the Spikes LRBHO. The FM Products upper is cut to the Colt spec, therefore we have no plans to deviate from that. Modifying your FM Products Upper to accommodate a Spikes Tactical Glock style lower will void the lifetime warranty on our PCC Uppers.
4) We only recommend Sylvan magwell adapters, as they require no modifications or adjustments to work properly. FM Products does not support Stern Magwell Adapters as they require regular adjustments to work properly.
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Specifications
Barrel Contour: Lightweight
Barrel Length: 4.0
Barrel Material: 4150 Chrome Moly Steel
Brand: Foxtrot Mike Products
Caliber Gauge: 9mm Luger
Color: Black
Finish: Hardcoat Anodized
Gas System Type: Blowback
Handguard: M-LOK
Muzzle Device: Blast Diverter
Twist Rate: 1:10
MPN#: PAFM9-3UPR
