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.
Comes standard with: two 10 round magazines, pseudo bayonet lug, flash hider, forward assist, bolt release, interchangeable MIL-SPEC forearm, functioning dust cover, and adjustable sights
Upper Receiver Type: Modified A3 Flat-Top
Barrel Length: 16″
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: 11.8″ Free Float Quad Rail
Includes 2 10-Round Magazines
|SKU||RIFLE:Chiappa Upper Rec. 11.8″ 22LR G|
|Manufacturer Part #||500.096|
* Stock image may be displayed. Actual product may not be exactly as shown.