User blog comment:Advancedwarfighter/SAR- 21 & TAR- 21 differences/@comment-1862836-20100422121806

SAR-21 - Singapore
 * Caliber: 5.56x45mm NATO
 * Action: Gas operated, rotating bolt
 * Overall length: 805 mm
 * Barrel length: 508 mm
 * Weight: 3.82 kg without magazine and accessories, *4.44 kg loaded with full magazine
 * Magazine capacity: 30 rounds
 * Rate of fire: 450-650 rounds per minute
 * Effective range: about 500 meters

TAR-21 - Isreal


 * Caliber: 5.56x45mm NATO
 * Action Gas operated, rotating bolt
 * Overall length 720 mm
 * Barrel length 460 mm
 * Weight 3,27 kg empty
 * Magazine capacity 30 rounds
 * Rate of fire 750 - 900 rounds per minute