The new ArmaLite AR-180B boasts the best features of the ArmaLite .223 M15 and the 1st Gen AR-180 rifles. The lower on ArmaLite's new AR-180B is made of a high strength polymer, and features the trigger group and magazine well of the AR15, so it uses standard AR15 type magazines and repair parts are readily available.
The upper is formed sheet metal like the 1st Gen AR-180 an features the AR-180 gas system to keep operating gasses outside the receiver. The 19.8" chrome moly barrel features an integral muzzle brake and ArmaLites exclusive adjustable front sight base.
The new AR-180B's upper and lower receiver groups are interchangeable with those of the 1st Gen AR-180, so earlier models may now be repaired by replacing the upper or lower half.
