The Rossignol ENT was an experimental

automatic rifle An automatic rifle is a type of autoloading rifle that is capable of fully automatic fire. Automatic rifles are generally select-fire weapons capable of firing in semi-automatic and automatic firing modes (some automatic rifles are capable o ...

of French origin from the first years of the 20th century. It was the first rifle which used the

direct impingement Direct impingement is a type of gas operation for a firearm that directs gas from a fired cartridge indirectly (through the barrel, through a gas block, and then through a gas tube) into the bolt carrier or slide assembly to cycle the action. ...

operating system, which found later use in the Swedish Ag m/42, the French 1940 MAS and, most notably, the

AR-10 The ArmaLite AR-10 is a 7.62×51mm NATO battle rifle designed by Eugene Stoner in the late 1950s and manufactured by ArmaLite (then a division of the Fairchild Aircraft Corporation). When first introduced in 1956, the AR-10 used an innovative co ...

and

AR-15 An AR-15-style rifle is any lightweight semi-automatic rifle based on the Colt AR-15 design. The original ArmaLite AR-15 is a scaled-down derivative of Eugene Stoner's ArmaLite AR-10 design. The then Fairchild Engine and Airplane Corporat ...

series of rifles. Rossignol developed the new impingement system, and modified the Friberg-Kjellman system of opposing, retractable bolt lugs for this experimental rifle. The rifle was produced under the

École Normale de Tir École may refer to: * an elementary school in the French educational stages normally followed by secondary education establishments (collège and lycée) * École (river), a tributary of the Seine flowing in région Île-de-France * École, Sa ...

, thus the ENT designation, and was produced in at least four variants, "ENT No. 1 or B1, B2, B4, B5".

Specifications

* Cartridge: 6×60mm * Caliber: 6mm * Weight: 9.7 kg * Operation: Gas direct-impingement

Specifications

References

Further reading