The Ordnance QF 6-pounder 6 cwt Hotchkiss Mk I and Mk II was a shortened version of the original QF 6 pounder Hotchkiss naval gun, and was developed specifically for use in the sponsons of the later Marks of British tanks in World War I, from Mark IV onwards.
2-pounder gun, 2-pounder and QF 2 pounder or QF 2-pdr are abbreviations used for various guns which fired a projectile weighing approximately 2 pounds (0.91 kg).
 These include:
The QF 14 pounder was a 3-inch medium-velocity naval gun used to equip warships for defence against torpedo boats.
 It was produced for export by Maxim-Nordenfelt (later Vickers, Sons and Maxim) in competition with the Elswick QF 12-pounder 12 cwt and QF 12-pounder 18 cwt guns.
The Ordnance QF 2-pounder (QF denoting "quick firing"), or simply "2 pounder gun", was a 40 mm British anti-tank and vehicle-mounted gun, employed in the Second World War.
 It was actively used in the Battle of France, and during the North Africa Campaign.
 As Axis tanks improved in armoured protection, it lost effectiveness, and it was gradually replaced by the 6-pounder, starting in 1942, though some remained in service until the end of the war.
 In its vehicle-mounted variant, the 2-pounder was also a common main gun on British tanks early in World War II, and was a typical main armament of armoured cars, such as the Daimler, throughout the war.
Type 3 120 mm 45 caliber naval gun was a Japanese naval gun and coast defense gun used on destroyers, submarines and torpedo boats of the Imperial Japanese Navy during World War I and World War II.
 The proper title of the gun under the Japanese naval artillery naming system is 12 cm/45 3rd Year Type naval gun.
 Other guns using this naming system are the 41 cm/45 3rd Year Type naval gun, 20 cm/50 3rd Year Type naval gun, 15.5 cm/60 3rd Year Type naval gun and the 12.7 cm/50 Type 3 naval gun.
The Ordnance BLC 15 pounder gun (BLC stood for BL Converted) was a modernised version of the obsolete BL 15 pounder 7 cwt gun, incorporating a recoil and recuperator mechanism above the barrel and a modified quicker-opening breech.
 It was developed to provide Territorial Force artillery brigades with a reasonably modern field gun without incurring the expense of equipping them with the newer 18 pounder.
 It is the gun that writers usually mean by "15 pounder gun" in World War I, but can be confused with the earlier Ordnance QF 15 pounder "Ehrhardt" or Ordnance BL 15 pounder, both of which fired the same shell.
The H/PJ38 is a new single barrel 130 mm gun of the Chinese Navy introduced on the Type 052D destroyer.
 Designed by the Zhengzhou Mechanical-Electrical Engineering Research Institute (郑州机电工程研究所, also known as the 713th Research Institute of the 7th Academy) and manufactured by Inner Mongolia 2nd Machinery Manufacturing Factory (内蒙第二机械制造厂), the H/PJ-38 130 mm naval gun was developed from reverse engineering of Soviet AK-130 twin 130 mm naval gun, which was carried out by the same two establishments.
 The general designer of the H/PJ-38, Chen Dingfeng (陈汀峰), was also the general designer of all models of Type 79 100 mm naval gun, all models of Type 210 100 mm naval gun, and the H/PJ26 76 mm naval gun.
 Chen was recalled from retirement to complete the H/PJ38 single barrel 130 mm naval gun.
 When the Soviet AK-130 was first successfully copied by Chinese developers, the Chinese navy was unsatisfied and decided not to let the AK-130 into production, despite all performance parameters being met.
 Because the AK-130 was judged out-of-date by the Chinese Navy, the H/PJ38 program was created in 2005.
 The H/PJ38 130 mm single barrel naval gun is considered more powerful and more reliable than other smaller caliber naval guns currently in Chinese service, and as with naval guns on most warships, it is installed in front of the VLS.
HMS "Foylebank was a converted 5,500 ton merchant ship active during the Second World War.
 She was launched as the MV "Foylebank by Bank Line (Andrew Weir Shipping) in 1930 and requisitioned by the Royal Navy in September 1939.
 She was converted into an anti-aircraft ship, equipped with 0.5 inch (12.7 mm) machine guns, two quad 2-pounder pom-poms and four twin high angle 4-inch gun turrets.
 The "Foylebank" saw action in Portland Harbour next to the Isle of Portland in Dorset, England.
 She arrived in Portland on 9 June 1940 for a build-up to anti-aircraft duties commanded by Captain H.P. Weir.
The 2-pounder gun, officially designated the QF 2-pounder (QF denoting "quick firing") and universally known as the pom-pom, was a 40 mm British autocannon, used as an anti-aircraft gun by the Royal Navy.
 The name came from the sound that the original models make when firing.
 This QF 2-pounder was not the same gun as the Ordnance QF 2 pounder, used by the British Army as an anti-tank gun and a tank gun; they shared only the projectile weight of 2 pounds.
The Ordnance QF 3 pounder gun was a 47 mm British tank gun based on the Ordnance QF 3 pounder Vickers naval gun, mounted on Vickers Medium Tanks in the 1920s and 1930s.
 The gun was produced in 32 calibre (59 inch) and 40 calibre (74 inch) versions.

Question: What other weapons besides the QF 2-pounder naval gun, so named because of the sound it made when fired, were there on the HMS Foylebank?
Answer: 0.5 inch (12.7 mm) machine guns