SKU: 88290
UPC: 8053670710047
MPN: 500093
The Chiappa Firearms 500093 M4-22 Gen II Pro Upper is a dedicated .22 LR upper receiver assembly engineered for shooters seeking cost-effective rifle training, youth marksmanship instruction, or low-recoil tactical practice. This modular upper mates with standard mil-spec lower receivers, making it an ideal platform for building a complete AR-pattern rifle or upgrading an existing lower for reduced ammunition expense and minimal shoulder impulse. Whether you're running law enforcement transition drills, teaching new shooters, or conducting high-volume practice sessions, the .22 LR upper delivers reliable, accurate performance without breaking your training budget.
The M4-22 Gen II Pro features a 16-inch steel barrel in matte black, providing consistent velocity and accuracy across standard and high-velocity .22 LR ammunition. A 7.80-inch quad Picatinny rail system mounted on the polymer receiver delivers four full-length accessory rails for mounting optics, lights, lasers, or vertical grips without the need for additional mounting hardware. The matte black finish resists corrosion and glare, while the polymer receiver reduces weight to just 6.05 pounds—keeping the overall rifle handling characteristics light and controllable even during extended training sessions. Two included 28-round magazines ensure extended firing cycles between reloads, maximizing training efficiency and reducing downtime.
Law enforcement trainers, competitive shooters, and AR-platform enthusiasts benefit most from this upper's practical design and mil-spec compatibility. Installation on any mil-spec lower receiver requires no permanent modifications—simply secure the upper to your existing lower and begin shooting. The 16-inch barrel length meets federal regulations for rifle classification while maintaining the ergonomic M4 profile, making it ideal for confined training environments, vehicles, or home defense scenarios where a full-size rifle platform is desired. Quad rails accommodate modern optics platforms and weapon-mounted systems, allowing you to replicate duty configurations or personal setups while training economically.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.