Air Rifle for Children

[eyebull]

You've also got the Crosman 2250 as a cheap option, but it's CO2, and the LOP may be a bit long for a 10 year old. Very customisable though.

[Septic]

I’d seriously consider an S200.
Small, light, and perfect as a first PCP.

[Murphy]

IIRC the S400k is lighter than the S200.

[Shed tuner]

the length of the stock is a bigger problem than weight at that age...

so chose a gun either with a junior sized stock, or one where you can buy a cheap spare stock and shorten it. Or as stated above, a shoulder stock for a PCP pistol (like a P700) is a great option. Chopping a 2250 stock and affixing an adjustable butt pad works well (and the stocks are less than £30 new).

lots of options, but with the exception of the ultra junior, they all seem to require some DIY.

[Scampinr]

Definitely some options to consider.

[rapidresponse1]

I started my daughter off with a ratcatcher then moved on to a s200,bothe nice starting rifles