Chilean SIG bayonet M 1962. (ABCN322)(K84)(JN0)

SIG 510-4 automatic rifle. No serial number. Minty bright finished double edged stainless steel blade with no makers name or markings. Blackened steel pommel and one piece cylindrical black plastic grip. Press catch on both sides. Alloy symmetric crossguard with a muzzle ring. MRD 22 mm. 
Mat black plastic scabbard with no edges.
Both bayonet and scabbard differ in dimensions and details from the Swiss SIG M 1957 bayonet. 

Rare bayonet and seldom found. In 1962-63, a total of 36.000 rifles only for a Chilean contract were made in Switzerland by SIG and in Italy by Beretta. The bayonets were all produced by SIG in Switzerland.