The UK’s Royal Marines have confirmed that some units of the UK Commando Force are now equipped with the SIG Sauer MCX.The announcement on social media simply reads: “The UK Commando Force has been issued with 1,500 new Sig Sauer MCX rifles for use in the maritime counter-terrorism role.”The first confirmation that the MCX was in British service came in February with the publication of a video titled ‘RAID’ showcasing the Royal Marines Commandos’ capabilities.In the video members of 42 Commando are seen using SIG MCX Spear-LTs while Marines from 40 Commando are seen using the KAC KS-1 L403A1, which was adopted by elements of the UK Commando Force and the new Army Special Operations Brigade made up of the battalions of the Ranger Regiment which was formed in 2021.In a full statement the Royal Navy, under which the Royal Marines operate, said the procurement was “part of £6m Navy investment” with the new rifles “designed to complement the Commandos’ new general use weapon [the L403A1].”