A bullpup firearm is one with its firing grip located in front of the breech of the weapon, instead of behind it. This creates a weapon with a shorter overall length for a given barrel length, and one that is often lighter, more compact, concealable, and more maneuverable than a conventionally configured firearm. Where it is desirable for troops to be issued a more compact weapon, the use of a bullpup configuration allows for barrel length to be retained, thus preserving muzzle velocity, range, and ballistic effectiveness.
The .50 BMG, also known as 12.7×99mm NATO, and designated as the 50 Browning by the C.I.P., is a .50 in (12.7 mm) caliber cartridge developed for the M2 Browning heavy machine gun in the late 1910s, entering official service in 1921. Under STANAG 4383, it is a standard service cartridge for NATO forces. The cartridge itself has been made in many variants: multiple generations of regular ball, tracer, armor-piercing (AP), incendiary, and saboted sub-caliber rounds. The rounds intended for machine guns are made into a continuous ammunition belt using metallic links.
An anti-materiel rifle (AMR) is a rifle designed for use against military equipment, structures, and other hardware (materiel) targets. Anti-materiel rifles are chambered in significantly larger calibers than conventional rifles and are employed to eliminate equipment such as engines and unarmored or lightly armored targets. Although not originally designed for use against human targets, the bullet weight and velocity of anti-materiel rifles gives them exceptional long-range capability even when compared with designated sniper rifles. Anti-materiel rifles are made in both bolt-action as well as semi-automatic designs.
Barrett Firearms Manufacturing is an Australian-owned, American manufacturer of firearms and ammunition located in Christiana, Tennessee. It was founded in 1982 by Ronnie G. Barrett for the purpose of building semi-automatic rifles chambered for the .50 BMG ammunition, originally developed for and used in M2 Browning machine guns. Barrett began this work in the early 1980s, and the first working rifles were available in 1982, hence the designation M82. Barrett personally designed every part of the weapon. He marketed the weapon and mass-produced it utilizing private funds. He continued to develop the rifle through the 1980s, and developed the improved M82A1 rifle by 1986. Barrett was acquired by the NIOA Group on 17 January 2023, solidifying the long-standing relationship between the two companies.
The Valmet M82 is a bullpup assault rifle with a Valmet RK 62 76 internal design created by Finnish company Valmet.
The Barrett XM109, originally known as the Objective Sniper Weapon (OSW) and now called the Anti-Materiel Payload Rifle (AMPR), is a prototype anti-materiel sniper rifle. It is chambered for 25 × 59 mm grenade rounds and was developed by Barrett Firearms Manufacturing. It was designed in accordance with a requirement set out in 1994, and is capable of defeating light armor and equipment out to 2 km.
The Barrett M82 is a recoil-operated, semi-automatic anti-materiel rifle developed by the Australian-owned company Barrett Firearms Manufacturing and produced in the United States.
The Barrett M95 is a bolt-action rifle chambered in .50 BMG (12.7×99mm), and manufactured by Barrett Firearms Company. It has been adopted by a number of militaries around the world.
The Barrett M99 is a single-shot anti-materiel rifle that was first introduced in 1999 by the Barrett Firearms Company as a less expensive alternative to the company's higher-priced offerings. The rifle uses a bullpup configuration with a pistol grip. Its primary market was long-range competitive target shooters and in 2001, a shooter set a world record at 1,000 yd (910 m) with the M99 by shooting a 5-shot group which measured 4.09 in (10.4 cm).
The Gepárd anti-materiel rifles are a family of Hungarian weapons manufactured by Sero International Kft. designed to destroy unarmored and lightly armored targets. These long-range large-caliber rifles have high accuracy and muzzle velocity. In 1987, the Hungarian People's Army sought to obtain a compact, mobile weapon that could damage lightly armored targets. The project, led by Ferenc Földi, culminated in the creation of the Gepárds.
The AS50 is a semi-automatic .50 BMG anti-materiel precision rifle manufactured by British firearms producer Accuracy International. It enables operators to engage targets at very long range with high accuracy using explosive or incendiary ammunition, and employs a gas operated semi-automatic action and muzzle brake, allowing for lower recoil than the AW50 bolt-action rifle and faster target acquisition. The rifle is highly transportable, ergonomic and lightweight. It can be disassembled in less than three minutes and serviced without tools.
The Barrett M90 is a bolt-action, bullpup rifle chambered in .50 BMG. It was designed and manufactured by Barrett Firearms Company. In 1995, Barrett stopped production of the M90, and replaced it with the M95.
The DSR-Precision DSR-50 is a bullpup bolt-action anti-materiel rifle developed and manufactured by DSR-Precision GmbH and chambered in .50 BMG. It is essentially an upscaled DSR-1.
The Mambi-1 AMR is a semi-automatic anti-materiel rifle designed and manufactured in Cuba. It was named after the Mambises, who were rebel soldiers that fought against the Kingdom of Spain during the Cuban War of Independence (1895–1898).
The MICOR Leader 50 is a heavy semi-automatic sniper rifle of US origin. The weapon has a bullpup layout.
The PDShP is a series of bullpup anti-materiel rifles developed by the Georgian Military Scientific-Technical Center STC Delta. The weapons are based on a bullpup design and there are different versions, Amr mod-1 and Amr mod-2. Development of the current series was completed in 2013.
The ZijiangM99 is a semi-automatic anti-materiel rifle first introduced in 2005. It has since seen use by the People's Liberation Army Navy and Marine Corps in anti-piracy operations in the Gulf of Aden, and has been seen in the hands of various rebel groups involved in the Syrian Civil War.
The Desert Tech Hard Target Interdiction (HTI) is a bullpup bolt-action sniper and anti-materiel rifle designed and manufactured in West Valley City, Utah, United States by Desert Tech.
Arash is an Iranian 20mm semi-automatic anti-materiel sniper rifle. This weapon is used by Iran and Hezbollah, and is named for the mythical Arash the Archer.
The QBU-10 or Type 10 sniper rifle is a semi-automatic anti-materiel rifle designed and manufactured by Norinco. First introduced in 2010, it has since seen use by the People's Liberation Army Ground Force, People's Liberation Army Navy, and Marine Corps.
