Here are some names of weapons commonly used in the United Kingdom
1. SA80 (Small Arms for the 1980s)
A family of assault rifles used by the British Armed Forces.
2. L85A2 Individual Weapon
An upgraded variant of the SA80 assault rifle used by the British Army.
3. L86 LSW (Light Support Weapon)
A light machine gun variant of the SA80 used by the British Armed Forces.
4. L129A1 Sharpshooter Rifle
A semi-automatic sniper rifle used by the British Army.
5. L115A3 Long Range Rifle
A bolt-action sniper rifle used by the British Armed Forces.
6. L9A1 Browning Hi-Power
A semi-automatic pistol used by the British Armed Forces.
7. L107A1 Anti-Material Rifle
A .50 caliber bolt-action rifle used by the British Army for long-range anti-materiel sniping.
8. L7 General-Purpose Machine Gun (GPMG)
A belt-fed machine gun chambered for 7.62×51mm NATO ammunition used by the British Armed Forces.
9. L128A1 Combat Shotgun
A semi-automatic shotgun used by the British Army.
10. L84A1 Carl Gustav
A disposable recoilless anti-tank weapon used by the British Armed Forces.
11. LAW 80
A one-shot disposable anti-tank rocket launcher used by the British Armed Forces.
12. L2A3 Sterling
A submachine gun used by the British Armed Forces in the past.
Please note that this is not an exhaustive list, and there are other weapons used by the United Kingdom's military and law enforcement agencies.