Chiappa AR-15 MFour Gen II Pro Upper Assembly 22 Long Rifle 1 in 16" Twist 18.5" Barrel 7.8" Free Float Quad Rail Handguard, Two 28-Round Magazines
The Chiappa MFour Gen II Rimfire AR-15 Upper Reciever Assembly features a parkerized steel, heavy profile, match barrel. The receiver itself is made from a reinforced, improved polymer that is very similar to aluminum. The polymer receiver provides a strong but extremely lightweight housing for the steel bolt.
The Chiappa MFour Gen II Rimfire AR-15 Upper is economical, reliable, and an excellent choice for introducing young shooters and keeping skills sharp at a lower cost than training with .223/5.56 ammunition. This upper fits any Mil-Spec lower receiver and requires no permanent modification to the host firearm.
- Upper Receiver Type: Modified A3 Flat-Top
- Barrel Length: 18.5"
- Barrel Contour: Heavy
- Barrel Material: Chrome Moly Steel
- Muzzle Thread Pattern: 1/2"-28
- Chrome Lined: No
- Barrel Finish: Parkerized
- Twist Rate: 1 in 16"
- Chamber: 22 Long Rifle
- M4 Feed Ramps: No
- Muzzle Device: Muzzle Brake
- Gas System Length: None, Blowback
- Gas Block Diameter: N/A
- Handguard: 7.8" Free Float Quad Rail
- Sights: None
- Includes 2 28-Round Magazines
Shipping Weight: 6.025 PoundsXThe total weight of the product, including the product’s packaging as it sits on our shelf. Since some products ship directly from the Manufacturer, their weight may be unavailable. Because of variations in the manufacturing process, similar products may have differing weights. Unless the product is designated as “Ships Alone”, Shipping Weight does not include the shipping box or packing materials associated with your order.
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