Can't be 100% sure about the brand but it looks like the S&T Tavor T21 PRO KeyMod Carbine EBB https://www.patrolbase.co.uk/s-and-t-tavor-t21-pro-keymod-carbine-aeg-w-ebb

Hardly used and in near perfect condition.

Solidly built replica of the Israeli Tavor Tar-21, featuring the full-length upper RIS rail. The folding iron sights are integrated into the top rail,

Receiver made from high-density polymer. Alloy for the outer barrel assembly, handguard and other elements such as the trigger.

The dummy bolt locks back with the charging handle, allowing easy access to the hop-up behind, and can then be released with the bolt release behind the magazine well.

NB: the charging handle snapped. Now glued with Q-Bond. Need to be gentle when pulling 🙂

A small screw missing on the left side of the metal handguard (see pic) but still solid

Test fired at 340fps, loud and crisp.

Use standard M4 / AR15 pattern AEG magazine

Rifle: £120

Shipping + pp fee: £12

Collection welcome (Southwest London). You can save the postage & pp fee 😀