Based on the designs of the Colt M16 and The Stirling Assault Rifle the Ultimax is an excellent weapon manufactured in Singapore and used by their armed forces. Light and easy to load and operate the Ultimax fires the 5.56 mm cartridge and recoil has been reduced to a minimum thus allowing the Ultimax to be fired from the shoulder. Magazines are either the 100 round drum or the 20-30 round box magazine.
Marks and Stamps: (R side of receiver) S.A.W. MARK II CAL.5.56MM MFG. BY CHARTERED INDUSTRIES OF SINGAPORE PTE. LTD. SER 0202 PATS.PEND. (Grip) CIS SINGAPORE SAW| Accession Number: 283 | Period of Use: 1980s - present |
| Type: Machine gun | War Zones: |
| Country of Origin: Singapore | Type Date: 1978 |
| Manufacturer: Chartered Industries of Singapore Pte Ltd | Serial Number: 0202 |
| Manufacture Date: Unknown | Calibre/Ammunition: 5.56mm |
| Weight: 4790g | Length Overall: 1030mm |
| Cyclic Rate: 540rpm | Length Barrel: 508mm |
| Deactivation Certificate Number: DA 80813 |