been protected by the safety barriers, but the incidents prompted the USFS to retire all remaining M40s in July 2003. Also in the mid 1990s, Parks Canada acquired four M40s for avalanche control to replace the Canadian Armed Forces using 105 mm towed howitzers in Rogers Pass (British Columbia) on the Trans-Canada Highway. Special pedestals were built at specific locations and a pneumatic remote firing system was devised to allow the operators to fire the recoilless rifle safely in case of ammunition malfunction. After a trial period, the M40s plan was abandoned and the Canadian Armed Forces once again began providing 105mm towed howitzers and artillery personnel to conduct avalanche control. Users : used by mercenaries of FNLA on Land Rovers and by UNITA. : replaced the 6-pdr gun from 1961. Remained in service into the 1990s and in limited use in Afghanistan. : Locally produced as 10.6 cm rPAK M40A1 : 25 M40A1s : 238 M40A1s : 194 M40A1s : 40 M40A2s : 14 : 213 M40A1s : Locally produced as Type 75 : 73 M40A1s : 144 M40A1s : remained in limited service in Afghanistan. : 16 M40A1s : 20 M40A1s : 24 M40A1s : 20 M40A1s , including some Spanish-made guns : 30 M40A1s : 56 M40A1s , including some Spanish-made guns : 581 M40A1s : 50 M40A1s , including some Spanish-made guns : M40A1C locally produced. More than 3,000 in service : Locally produced. ~200 M40s in service : ~12 M40A1s : Locally produced by Japan Steel Works as Type 60 : 113 M40A1s Lebanese Forces : 6 M40s : American, Chinese and Iranian variants : 24 M40s : ~90 M40A1s - including some Spanish-made guns : 350 M40A1s : more than 1,000 M40A1 RCLs in service , including Spain made CSR-106s and Pakistani-made M40A1s. used for bunker busting and anti-personnel/infantry support role in counter-insurgency campaigns. : 8 M40s - Identified as 106mm Rekylfri Kanon M40 : Locally produced. Still in service : 45 M40A1s : 90 M40A1s Transferred from Yemen : South African National Defence Force. : Locally produced. Still in service in 2016. : Locally produced by Santa Bárbara Sistemas as CSR-106 : ~30 : 40 M40A1s . Also used some Chinese Type 75s, some being captured by the Sudan People's Liberation Army : In the period 1958–1990, the antitank companies of the Swiss Army Infantry Regiments were equipped with 12 M40 guns. :