[4] In 2012, the Queensland Police Service placed an order for 420 R4 carbines at a cost of almost AUD$1 million to replace the Ruger Mini-14.

[9] The Armed Forces of the Philippines later increased the order to 63,286 R4s which are designated as the R4A3 which is equivalent to the Colt M4 R0977 model and replaces early model M16s.

[10][11][12] In March 2015, Remington announced that it would offer the R4 to the civilian market.

[13] In July 2018, Remington announced that it had been awarded a US$28 million contract by the United States Army for 5.56mm carbines on behalf of key international allies.

[14][15] In 2019, Remington unveiled a modified version of the R4, intended to function as a battle rifle by firing the more powerful 7.62×51mm NATO cartridge.