Franklin Armory F17-L Complete Upper Receiver .17 WSM 20rd Magazine 20" Threaded Barrel Black

The Franklin Armory F17-L Complete Upper Receiver is designed for professional use on Milspec AR complete lower receivers. It is chambered in .17 Winchester Super Magnum, offering a piston-driven system that enhances shooting precision and reduces fouling. This upper receiver features the Osprey Defense slim piston system, which automatically adjusts for suppressed or unsuppressed firing without manual intervention.

The 20-inch barrel is threaded with a standard 1/2-28 pitch, compatible with many suppressors, making it suitable for tactical and pest control applications. The handguard includes an integrated barrier stop and is M-Lok compatible, allowing for versatile accessory mounting.

Features

• 20" threaded barrel with 1/2-28 thread pitch
• Osprey Defense slim piston system with automatic adjustment
• M-Lok compatible proprietary handguard with integrated barrier stop
• Optic ready sights
• Standard charging handle
• F17 proprietary bolt carrier
• Low profile gas block
• Aura muzzle device

Specifications

• Caliber: .17 Winchester Super Magnum
• Barrel twist rate: 1:9
• Barrel length: 20 inches
• Color: Black
• Material: Steel and aluminum
• Magazine capacity: 20 rounds
• MPN: 00-40072-BLK
• UPC: 818725012853