mount that attaches to an integral dovetail spot-welded to the top of the receiver. The mount could also feasibly be used with other scopes if they had a 1-inch diameter tube. AR-18 - Assault rifle AR-180 - Semi-automatic sporting rifle AR-180 SCS - Semi-automatic sporting rifle with wooden thumbhole stock AR-18S - Semi-automatic short barrel carbine AR-180SP - semi-automatic pistol AR-18 LSW - Light Support Weapon (LSW) prototype with a quick barrel change capability and completed a calibre conversion to 7.62x39mm A delayed blowback upper was also developed by Ross Rudd using a hesitation lock but not manufactured due to financial backing reasons. Later developments The ArmaLite brand was purchased in 1996 by Eagle Arms, a U.S. small arms manufacturer, which adopted the ArmaLite brand for its company. An updated model of the AR-180 was introduced in 2001 as the AR-180B, with a molded polymer lower receiver replacing the stamped steel original. The new lower receiver is combined with the buttstock, which is fixed on the AR-180B, instead of the side-folding butt on the original AR-18 and AR-180. Other AR-180B changes include the use of standard AR-15 trigger group and rear sight parts, a straight cocking handle replacing the earlier cranked style and the deletion of the original AR-18/180 spring-loaded dust cover for the cocking handle slot. The AR-15 magazine release is also used, in contrast to the original AR-18 which had a different magazine release and corresponding slot in the body of the magazine, meaning AR-15 magazines needed a new slot cut to fit properly in the AR-18. As a result, the AR-180B uses standard AR-15/M16 magazines. An AR-180B version with a Picatinny rail was planned for production. In 2007 the AR-180B was discontinued due to poor sales. There are aftermarket parts to improve the AR-180B. NoDak Spud made a replacement black-anodized aluminum-alloy lower-receiver. StormWerkz made a series of stock adapters compatible with this model of lower receiver to allow the use of fixed or folding AR-180B or AR-15 stocks. StormWerkz also made an adapter that allowed the use of a Picatinny rail that comes in four variants and installs over the dovetail on the top of the receiver. The Canadian company Wolverine Supplies teamed up with Canadian gunmaker Kodiak Defence to commission the creation of a new AR-180 variant, the WK180-C. The WK180-C does away with the stamped steel and polymer construction of the AR-18, AR-180, and AR-180B,