Chiappa M4-22 Gen II Upper | .22 LR 16in | 28rd | 500.095

The Chiappa M4-22 Gen II Pro upper receiver kit converts a mil-spec AR lower to .22 LR for economical range sessions and dedicated rimfire practice. It pairs a heavy-contour steel 16in barrel with an 11.8in free-float quad Picatinny handguard and a polymer A3-style upper receiver. The kit ships with two 28-round magazines and is intended for use with Mil‑Spec AR-style lowers for training and recreational plinking.

Product Specifications

• The manufacturer is Chiappa Firearms.
• The model is M4-22 G2.
• The manufacturer part number is 500.095.
• The caliber is .22 LR.
• The barrel length is 16 inches.
• The barrel is described as heavy contour.
• The barrel material is steel.
• The barrel finish is black parkerized.
• The rate of twist is 1:16″.
• The receiver type is A3 polymer.
• The handguard is a 11.80 inch free-float quad Picatinny rail.
• The stated magazine capacity is 28 rounds.
• The kit includes two 28-round magazines.
• This upper is designed to fit MIL-SPEC AR-style lower receivers.
• The UPC is 8053670710061.

The M4-22 Gen II Pro upper is built for economical training and extended rimfire sessions without changing your AR lower. Its heavy-contour steel barrel and full-length Picatinny rail give a stable platform for optics and accessories while the included 28-round magazines keep time at the range productive. For shooters who want a reliable .22 LR conversion that preserves AR ergonomics, this upper delivers a practical, no-nonsense option.