What are the world-famous weapons manufacturing companies?

A.i. British Precision International Co., Ltd. Barret American Barrett Gun Manufacturing Co., Ltd. specializes in producing large caliber sniper rifles. Benelli Italy Bernali Beretta Tactical Shotgun Produced by Italy Beretta Company [Czech Republic] Czech Colt American Colt Company F.N. Belgian State-owned Gastel Company Francci Italy Luigi Flantz Company Glock Austria Glock Co., Ltd. H &；; K Germany Hechler and Koch Co., Ltd. I.W.I.(I.M.I) israel military industries Light Weapons Department KAC/KMC American Knight Ordnance Company MagPul American MagPul Company Mao Se German Mao Se Company MCBROS American McMillan Company Ruger American Stourm Ruger Company S &；; W American Smith-Wei Sen company SIG Arms, formerly known as SIG Arms, is now Swiss Arms. Sauer's products also include Steyr Austria Steyr-Manlicher STK Singapore STK Company (formerly CIS Company) Tac Ops Inc American Tactical Task Company's product introduction Walther Germany Carl Walter Company Winchester Winchester USA Winchester Company.