Product DescriptionThe TIPPMANN ARMS M4-22 ELITE Conversion Upper Kit is designed to convert a compatible mil-spec AR lower to shoot .22 Long Rifle ammunition. This complete upper kit features a 16 inch 4150 solid steel barrel, a 12 inch aluminum free float M-LOK handguard, an aluminum upper, and a nickel plated bolt for dependable performance and easy handling. It also includes a 25-round magazine, modified buffer, buffer spring, two firing pins, adjustable flip-up sights, and an aluminum charging handle, making it a well-equipped option for rimfire training, target shooting, and general range use.Built with practical features like a full-length top Picatinny rail, threaded muzzle with A2 birdcage, functional forward assist, shell deflector, and ejection port cover, this conversion upper kit offers familiar AR-style handling in a .22 LR platform. It is compatible with mil-spec AR lowers, though the last shot hold open function does not operate with this upper kit.Product Highlights Converts a compatible mil-spec AR lower to shoot economical and popular .22 Long Rifle ammunition Equipped with a 16 inch 4150 solid steel barrel and 1/2 x 28 threaded muzzle with A2 birdcage Features a 12 inch aluminum free float M-LOK handguard with full-length top Picatinny rail for accessories Includes a nickel plated bolt, aluminum charging handle, adjustable flip-up sights, and one 25-round magazine Complete kit also includes a modified buffer, buffer spring, two firing pins, and owner&';s manual Specs Brand: TIPPMANN ARMS Manufacturer Part Number: A201243 UPC: 850050173809 Product Type: Conversion upper kit Model: M4-22 ELITE Caliber: .22 Long Rifle Compatibility: Mil-spec AR lowers Barrel Length: 16 in Barrel Material: 4150 solid steel Barrel Twist Rate: 1:16 Handguard Length: 12 in Handguard Type: Free float M-LOK Upper Material: Aluminum Bolt Finish: Nickel plated Charging Handle Material: Aluminum Muzzle Thread: 1/2 x 28 Muzzle Device: A2 birdcage Rail: Full-length top Picatinny rail Sights: Adjustable flip-up sights Magazine Included: Yes, 25-round magazine Included Components: Modified buffer, buffer spring, two firing pins, owner&';s manual Finish: Matte Black Additional Note: Last shot hold open does not work with this upper kit Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.