L117 assault rifle (Isselmere-Nieland)
The L117 assault rifle is bullpup design based loosely on the British EM-2 rifle but using the forward case/cartridge ejection system of Fabrique Nationale de Herstal's F2000 5.56 × 45mm assault rifle for improved ambidextrous firing. A folding charging lever is on the spine of the rifle underneath the picatinny rail. The picatinny rail permits the fitting of a wide variety of aiming devices, from iron sights, optronic sights (optical, thermal, infra-red, holographic, and low-light), to the Royal Isselmere-Nieland Ordnance's computerised sight (RINOCS).
The RINOCS enables a soldier equipped with a connected helmet mounted display to look and fire around corners without exposing much of him- or herself. It may also be used to compute impact point of either direct fire (bullets) or indirect fire (rifle grenade) projectiles and, in conjunction with other aiming devices, may allow similarly equipped soldiers to designate targets for other members of the section or squad.
The operation of the rifle is as follows: gas from the propellant impinges through a cavity in the barrel to the gas tube above. This gas pressure then forces back a gas piston that acts on the bolt carrier, causing the bolt itself to rotate ejecting the case or round. The rotating bolt mechanism both reduces the number of parts and the overall complexity of the design, as well as facilitating field stripping, cleaning, and operations. Cases/rounds are then ushered out of the front of the rifle by the bolt carrier. The ejection port in the front of the rifle opens and closes with the action of the bolt carrier, closing when the bolt is forward. The forward ejection system facilitates ambidextrous firing yet protects against the ingestion of foreign materials into the rifle's mechanism.
The L117 may easily be fitted with an underbarrel grenade launcher, such as the M203 or AG36, or a non-lethal attachment, such as the FN303. It may be fitted with other aiming devices and peripheral equipment, such as a laser aiming device, a flashlight, and other systems as required.
Characteristics
Cartridge: 6.5mm Grendel
Calibre: 6.5 × 39mm Grendel (123-gr/7.97g bullet, 265-gr/17.17g cartridge)
Weight: 3.54kg (empty, with 1.5× scope); 4.94kg (loaded with 3.5× scope)
Length: 800mm
Barrel length: 533mm (21")
Operation: Gas (piston), rotating bolt
Cyclic rate: 750-800 rpm
Muzzle velocity: 792.5 m/s
Firing modes: Single-shot semi-automatic, two-round burst, full automatic
Magazine: 25-26 round standard magazine or 30-round magazine
Price: $2,250 with 1.5× scope, $2,450 with 3.5× scope, $2,175 with holographic weapon sight (HWS), $2,850 with RINOCS
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