The British Army's basic infantry weapon is the L85A2 assault rifle, sometimes equipped with an L17A2 under-barrel grenade launcher or other attachments with the Picatinny rail. The rifle has several variants, including the L86A2, the Light Support Weapon (LSW) and the L22A2 carbine (issued to tank crews). These weapons are usually equipped with iron sights or an optical SUSAT, although optical sights have been purchased to supplement these. Support fire is provided by the FN Minimi light machine gun and the L7 general-purpose machine gun (GPMG), and indirect fire is provided by L16 81mm mortars. The L129A1 sharpshooter rifle was brought into service during the war in Afghanistan to give the infantry a long-range weapon. Sniper rifles include the L118A1 7.62 mm, L115A3 and the AW50F, all manufactured by Accuracy International. Other weapons, such as the L128A1 (Benelli M4) combat shotgun, may be temporarily used. ArmourEdit The army's main battle tank is the Challenger 2. It is supported by the Warrior Infantry Fighting Vehicle as the primary armoured personnel carrier and the many variants of the Combat Vehicle Reconnaissance (Tracked) and the FV430 series, which had its engines and armour upgraded as the Bulldog. Light armoured units often utilise the Supacat "Jackal" MWMIK and Coyote for reconnaissance and fire support. ArtilleryEdit The army has three main artillery systems: the Multi Launch Rocket System (MLRS), the AS-90 and the L118 light gun. The MLRS, first used in Operation Granby, has a 85-kilometre (53 mi) range. The AS-90 is a 155 mm self-propelled armoured gun with a 24-kilometre (15 mi) range. The L118 light gun is a 105 mm towed gun used in support of 16 Air Assault Brigade, 3 Commando Brigade of the Royal Marines and the Adaptive Force. To identify artillery targets, the army operates weapon locators such as the MAMBA Radar and utilises artillery sound ranging. For air defence it uses the Short-Range Air Defence (SHORAD) Rapier FSC missile system, widely deployed since the Falklands War, and the Very Short-Range Air Defence (VSHORAD) Starstreak HVM (high-velocity missile) launched by a single soldier or from a vehicle-mounted launcher. Protected mobilityEdit Where armour is not required or mobility and speed are favoured the British Army utilises protected patrol vehicles, such as the Panther variant of the Iveco LMV, and variants of the Cougar family (such as the Foxhound, Ridgeback, Husky and Mastiff). For day-to-day utility work the army commonly uses the Land Rover Wolf, which is based on the Land Rover Defender. Engineers, utility and signalsEdit Specialist engineering vehicles include bomb-disposal robots and the modern variants of the Armoured Vehicle Royal Engineers, including the Titan bridge-layer, Trojan combat-engineer vehicle, Terrier Armoured Digger and Python Minefield Breaching System. Day-to-day utility work uses a series of support vehicles, including six-, nine- and fifteen-tonne trucks (often called "Bedfords", after a historic utility vehicle), heavy-equipment transporters (HET), close-support tankers, quad bikes and ambulances. Tactical communication uses the Bowman radio system, and operational or strategic communication is controlled by the Royal Corps of Signals. AviationEdit The Army Air Corps (AAC) provides direct aviation support, with the Royal Air Force providing support helicopters. The primary attack helicopter is the Westland WAH-64 Apache, a licence-built, modified version of the US AH-64 Apache which replaced the Westland Lynx AH7 in the anti-tank role. Other helicopters include the Westland Gazelle (a light surveillance aircraft), the Bell 212 (in jungle "hot and high" environments) and the AgustaWestland AW159 Wildcat, a dedicated intelligence, surveillance, target acquisition, and reconnaissance (ISTAR) helicopter. The Eurocopter AS 365N Dauphin is used for special operations aviation, and the Britten-Norman Islander is a light, fixed-wing aircraft used for airborne reconnaissance and command and control. The army operates two unmanned aerial vehicles ('UAV's) in a surveillance role: the small Lockheed Martin Desert Hawk III and the larger Thales Watchkeeper WK450.