Model: AR-180B with Black Furniture
Caliber: .223/5.56 mm
Barrel: 19.8" Chrome Moly
Rifling Twist: RH 1:9"
Rear Sight: Rear Sight Adjustable for Windage Only, Small and Large Aperatures
Upper Receiver: Formed Sheet Metal
Lower Receiver: High Strength Polymer
Trigger: Standard Trigger
Overall Length: 38"
Weight: 6 lbs
Included with Rifle: 30 Round Magazine, Owner's Manual, One Year Warranty
MSRP: $852 3/30/2008
Street Price: $699 3/30/2008

With the best features of the .223 caliber M-15 and the 1st Generation AR-180 rifles, the lower on the new ArmaLite AR-180B is made of a high strength polymer and features the trigger group and magazine well of the AR-15 so that magazines and repair parts are readily available.

The AR-180B upper is formed sheet metal like the 1st Generation AR-180 and features the AR-180 gas system to keep operating gasses outside the receiver.  The chrome moly barrel features an integral muzzle brake and our exclusive adjustable front sight base.

The new AR-180B upper and lower receiver groups are interchangeable with those of the 1st Generation AR-180, so earlier models may now be repaired by replacing the upper or lower half.