PISTOL: LWRC INTERNATIONAL ARMS MODEL SIX8-A5 SPC II, SERIAL NUMBER 6P00978, SEMI - AUTOMATIC, 6.8MM, TITANIUM, CASE NOT INCLUDED, 13 Notes: LWRC SIX8-A5 SPC II Description: Type: Semi-automatic rifle platform chambered in 6.8mm SPC. Series: SIX8 series Design: AR-pattern rifle with a purpose-designed receiver and magazine system Manufacturer: LWRC International. Summary: The LWRC SIX8-A5 SPC II is a 6.8mm SPC semi-automatic rifle platform from LWRC International's SIX8 series, designed around the 6.8mm cartridge with a dedicated receiver and magazine configuration.