SIG 510
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| SIG 510 | |
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| Type | Battle rifle |
| Place of origin | Switzerland |
| Service history | |
| Used by | Switerland, Chile, Bolivia |
| Production history | |
| Produced | 1957-83 |
| Specifications | |
| Weight | 5.56 kg |
| Length | 1105 mm (1016 mm SIG 510-4) |
| Barrel length | 583 mm (505 mm SIG510-4) |
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| Cartridge | 7.5x55 mm GP11 (Stgw.57) or 7.62x51mm NATO (SIG 510-4) |
| Action | roller-locked delayed-blowback |
| Rate of fire | 600 rounds/min |
The SIG 510 is a battle rifle manufactured by SIGARMS (now SAN Swiss Arms) of Switzerland. It is based on the same roller-delayed blowback system used in the H&K G3 and CETME rifles. It is considered to be one of the most accurate mass-produced assault rifles available, and is very reliable in harsh climatic conditions.
It is in service in the Swiss Army with the designation F ass 57 (French, for Fusil d' Assaut 57) or Stgw 57 (German for Sturm Gewehr 57). It can launch rifle grenades from the muzzle.
A powerful and precise, but bulky and heavy weapon, it has been gradually replaced by the lighter SIG 550, and is now rare in active service.
The Stgw.57 was adopted for Swiss military service in 1957. The SIG 510-4 has been adopted by the Chilean and Bolivian armed forces. It is reported that the Chilean SIG 510-4 was actually manufactured in Italy by Beretta under contract to SIG.
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