Question: When did the military branch that Patrick Miller served in start using the sa80?

full_context: Document 1: SA80: The SA80 is a British family of 5.56 × 45mm NATO small arms, all of which are selective fire, gas - operated assault rifle s. The L85 rifle variant of the SA80 family has been the standard issue service rifle of the British Armed Forces since 1987, replacing the L1A1 variant of the FN FAL. The first prototypes were created in 1976, with production ending in 1994. The A1 variant was significantly upgraded in the early 2000s by Heckler & Koch as the SA80A2 and remains in service as of 2017. In mid-2016 a prototype A3 variant was showcased which further improved on the weapon and is reportedly being considered to extend the out of service date beyond 2025.
Document 2: ArmaLite AR-15: The ArmaLite AR - 15 was a select - fire, air - cooled, gas - operated, magazine - fed assault rifle manufactured in the United States between 1959 and 1964. Designed by American gun manufacturer ArmaLite in 1956, it was based on its AR - 10 rifle. The ArmaLite AR - 15 was designed to be a lightweight assault rifle and to fire a new high - velocity, lightweight, small - caliber cartridge to allow the infantrymen to carry more ammunition.
Document 3: FN F2000: The FN F2000 is a 5.56×45mm NATO bullpup assault rifle, designed by FN Herstal in Belgium. The F2000 made its debut in March 2001 at the IDEX defence exhibition held in Abu Dhabi, in the United Arab Emirates. As of early 2019, the F2000 is removed from the FN international and US websites.
Document 4: Robert Anstruther (MP): Colonel Robert Anstruther (31 December 1757 – 1832) was a Scottish soldier in the British Army, and briefly a politician.
Document 5: Patrick Miller (politician): Patrick Miller (died 26 February 1845) was a Scottish officer in the British Army and a politician. He sat in the House of Commons of Great Britain from 1790 to 1796.
Document 6: George Milligan (politician): Milligan was born in Des Moines, Iowa. He attended the Washington and Lee University and is a banker. He served in the Iowa State Senate from 1971 to 1975, and House of Representatives from 1969 to 1971 as a Republican. He died in Naples, Florida in 1990 from a heart ailment.
Document 7: SAR 21: The SAR 21 ("Singapore Assault Rifle - 21st Century") is a bullpup assault rifle designed and manufactured in Singapore. First revealed and subsequently adopted by the Singapore Armed Forces (SAF) in 1999, it was designed and developed over a four-year period and was intended to replace the locally license-built M16S1 by the Ministry of Defence (MINDEF), Singapore Army and the Chartered Industries of Singapore (CIS, now ST Kinetics). Many of its design features are directly intended to counter the weaknesses of the M16S1 as encountered operationally by some infantrymen.
Document 8: Miller Worsley: Miller Worsley (8 July 1791 – 2 May 1835) was an officer in the Royal Navy, best known for playing a major part in the Engagements on Lake Huron in the Anglo-American War of 1812.
Document 9: ArmaLite AR-10: The final Artillerie Inrichtingen design is known as the "Portuguese" model AR-10. This final version incorporated all that had been learned to date about the AR-10, including infantry service rifle and field test reports. In addition to a heavier barrel with chrome-lined chamber, optional bipod, and the removable plastic/metal handguards of the Transitional model, the Portuguese variant had wider bolt lugs, a stronger extractor, a new simplified three-position gas regulator, and a cocking handle featuring a forward bolt assist. It is believed that approximately 4,000-5,000 Portuguese variants were produced; nearly all of them were sold to the Portuguese National Defense Ministry by the Brussels-based arms dealer SIDEM International in 1960. The AR-10 was officially adopted by the Portuguese paratrooper battalions ("Caçadores páraquedistas"), and the rifle saw considerable combat service in Portugal's counter-insurgency campaigns in Angola and Mozambique.
Document 10: Ak 5: The first versions of the Ak 5 family were made by the Swedish company FFV Ordnance AB (now part of Saab Bofors Dynamics) under license from FN, with deliveries starting in 1986. This version of the Ak 5 is still in the inventory of the Swedish Armed Forces, but is no longer issued to soldiers, having been replaced by the Ak 5C and Ak 5D. This version uses fixed iron sights, and the Swedish Armed Forces have estimated that the maximum practical distance is 400 meters, but it can be used at longer ranges. This brings it in line with the M16, using the Swedish Armed Forces definition of maximum practical distance.
Document 11: William Miller (cashier): William Miller was the Chief Cashier of the Bank of England from 1864 to 1866. Miller was replaced as Chief Cashier by George Forbes.
Document 12: Paul W. Miller: Paul W. Miller (August 10, 1899 – August 6, 1976) was a Democratic member of the Pennsylvania House of Representatives.
Document 13: SA80: After receiving feedback from users and incorporating the various design changes requested, including adapting the rifle for use with the heavier Belgian SS109 version of the 5.56×45mm round and improving reliability, the weapon system was accepted into service with the British Armed Forces in 1985 as the SA80. The SA80 family originally consisted of the L85A1 Rifle, the L86A1 Light Support Weapon (LSW), and L98A1 Cadet GP Rifle. The first weapons were issued in October 1985.
Document 14: Sir Robert Abercromby, 5th Baronet: Sir Robert Abercromby, 5th Baronet of Birkenbog and Forglen, FRSE (4 February 1784 – 6 July 1855) was a Scottish politician.
Document 15: Stephen Decatur Miller: Stephen Decatur Miller (May 8, 1787March 8, 1838) was an American politician, who served as the 52nd Governor of South Carolina from 1828 to 1830. He represented South Carolina as a U.S. Representative from 1817 to 1819, and as a U.S. Senator from 1831 to 1833.
ground_truth: 1987
sub_queries: Patrick Miller >> military branch Answer: British Army
when did British Army start using the sa80 Answer: 1987