The Chiappa Firearms M4-22 Gen II Upper .22 Long Rifle 16" 10-Round Matte Black Receiver turns any compatible mil-spec AR lower into a dedicated rimfire trainer with familiar M4 ergonomics. Built around a 16-inch steel barrel with a heavy contour and classic A2 front sight, this upper offers reliable semi-automatic operation and a durable matte black finish.

This .22 LR upper is ideal for affordable range practice, fundamentals training, and casual plinking where shooters want the feel of an AR platform without the cost or recoil of centerfire ammunition. The 11.8-inch quad Picatinny forend provides ample space for mounting optics, lights, and other accessories, while the threaded 1/2x28 muzzle is ready for compatible devices. Chiappa’s focus on practical rimfire adaptations and solid craftsmanship makes the M4-22 Gen II a smart choice for building a versatile training rifle.

• Manufacturer: Chiappa
• Model: M4-22 Gen II Upper 22LR 16" 10RD
• Caliber: .22 Long Rifle
• Action: Semi-Auto
• Barrel Length: 16 in
• Capacity: 10 Rounds
• Barrel Profile: Heavy Contour