Assertion: assault rifle's design | /r/Synonym | the em-2 mamba
Facets:
Source sentences:
text: The Royal Small Arms Factory (RSAF) at Enfield started working on four designs, of which two generally similar designs known as the EM-1 "Cobra" (designed by Stanley Thorpe) and the EM-2 "Mamba" (the "EM" standing for Experimental Model) came to the fore.