L120A1 Anti-Materiél Rifle - $9,575

[Lochinver]

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L120A1 Anti-Materiél Rifle

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Type

Anti-Materiél Rifle

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Weight

11.1 kg (24.47 pounds)
(empty mag)

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Length

1365 mm (53.74 in.)

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Barrel Length

690 mm (27.17 in.)

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Cartridge

11.4x89mm LORD
(standard)

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Action

Gas-Operated
Short-Stroke Piston
Rotating Bolt

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Rate of Fire

189 rpm (semi-auto)

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Muzzle Velocity

970 m/s (3,182.41 ft/s)

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Effective Range

1,450 m (point target)
1,900 m (area target)

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Feed System

9-round Box Magazine

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Cost

$9,575

The Land Forces Designation 120A1 Anti-Materiél Rifle, or L120A1, is a gas-operated, semi-automatic, anti-materiel rifle, firing the 11.4x89mm LORD round. A Heavy Special Application Scoped Rifle, the L120A1 is designed to fill an anti-vehicle, anti-materiel, and anti-personnel round. With the successes of the Barrett M82 anti-materiel rifle and the McMillan Tac-50, Lochinver Ordnance began work on designing a new round to replace the aging .50 BMG cartridge. The fruits of their labour were realized in 2001 when the 11.4x89mm LORD round was developed, mixing the kinetic capabilities with the ballistics of the .408 Lapua. This round was updated in 2009 with the advent of Special Application Propellant, increasing effective range and kinetic energy. In conjunction with this development was the designing of a sniper rifle that could utilize this cartridge. In 2010, the L120A1, an update of the XL120 prototype, was put into production. Since, it has been used in peacekeeping missions in Lochinver, and has been issued to the Armed Forces of Falsea.



The L120A1 utilizes the short-stroke piston system, where expanding gases from the round shot are redirected to a piston which then forces the bolt group back and forward, reloading a new cartridge into the barrel. The rifle from an outwardly appearance may look like a direct impingement rifle, but its gas tube leads into a piston which rests in the receiver. Because the L120A1 uses the short-stroke piston system, carbon-fouling and other contaminants are channeled away from the receiver, minimizing jams. The rifle is equipped with an impressive muzzle brake, to reduce recoil and muzzle climb when firing in rapid succession. The barrel has a 1 in 10 rifling twist, and is threaded under the muzzle brake for the mounting of a suppressor or a flash hider. The gas actuation system of the L120A1 are constructed out of tungsten, due to its heat resistant properties, while the rifle is coated in chromium to reduce corrosion and the firing mechanism is constructed out of high-tensile steel due to its shock resistance. The rest of the rifle, however, is constructed out of a Carbon-Titanium Alloy, reducing the weapon's overall weight while still retaining its shock resistance.

The L120A1 has a dorsal, belly, and side universal rail system, by which accessories may be attached. The rifle comes standard with a Li+ powered 5-27x variable zoom telescopic optic. This optic is equipped with a bullet drop compensation system, utilizing a laser designator mounted near the barrel. Taking into account range and elevation, the crosshairs of the optic shift to correct, increasing convenience for the shooter. This function may be switched off in accordance to shooter preference. The optic is also equipped with thermal imaging capabilities, enabling operations in less-than-favorable locales and during night. The optic may also be detached all together and replaced with ironsights or a ladder sight. A bipod is mounted standard, but this may be replaced with a handguard, a foregrip, or any accessory using the LORD or Picatinny rail system. The barrel is detachable to reduce weight/bulkiness for transport.

The stock of the weapon contains a hydraulic system to compensate for recoil and the trauma put upon the shooter. This system replaces an otherwise spring system, decreasing weight and enabling the shooter to detach the stock for transport. The magazines of the L120A1 have a capacity of 9-rounds, featuring a hydraulic function similar to the stock, replacing somewhat unreliable springs which may cause the magazine to jam when clogged with outside contaminants. The magazine release, firing controls, and charging handle are ambidextrous, mounted on either side of the rifle, while the ejection port is positioned on the right side.



The L120A1 utilizes the 11.4x89mm LORD, specially designed to emulate the characteristics of the .50 BMG and the .408 Lapua. With a bullet weight of 30.9 g (476.86 gr), it has been tested to reach muzzle velocities of 970 m/s (3,182.41 ft/s) with the L120A1 platform, inflicting energies of 12,241 J (9,028.5 ft/lbf) on its target. With a maximum range of 2,200 m, it is effective up to 1,450 m for a point target, and 1,900 m for an area target. What makes this performance possible is the use of experimental propellant developed by Lochinver Ordnance in 2009, allowing it to achieve greater muzzle velocities and greater effective ranges than it would have otherwise if it utilized conventional propellants. The 11.4x89mm standard utilizes solid steel bullets rather than jacketed lead-core bullets, enabling superior penetration power.

The 11.4x89mm uses a principle similar to that of the .408 Chey Tac. Quoted from Lost River Ballistic Technologies Representative Warren Jensen;

To achieve balanced flight the linear drag has to be balanced with the rotational drag to keep the very fine nose (meplat) of the bullet pointed directly into the oncoming air. It should result in very little precession and yaw at extreme range and allows accurate flight back through the transonic region. This is hard to achieve for small arms projectiles. Mathematically you are at a great disadvantage trying to achieve balanced flight with a lead core non mono metal bullet. The rotational mass/surface area ratio is too high.