The Rifles Regiment was formed from the following antecedant regiments which all have their own museums and regimental associations.  If you're looking for uniform items from any of these regiments then please contact the museums directly:

The Devonshire and Dorset Light Infantry
The Light Infantry
The Royal Gloucestershire, Berkshire and Wiltshire Light Infantry
The Royal Green Jackets

Royal Green Jackets Museum
The Royal Green Jackets Regiment was formed in 1966 from the The Oxfordshire and Buckinghamshire Light Infantry, the King’s Royal Rifle Corps and the Rifle Brigade.  The museum's displays tell of the part played by these regiments in campaigning for peace over two and a half centuries.  The museum is housed in Peninsula Barracks, in the centre of Winchester.

The Rifles Berkshire and Wilshire Museum
The Museum tells the story of the infantryman from the Seven Years War to the present day.  It is housed in The Wardrobe in Salisbury Cathedral Close.

Devonshire & Dorset Light Infantry
The Keep Military Museum presents over 300 years of the regiments of Devon and Dorset and can be found in Dorchester.

Durham Light Infantry Museum
The Durham Light Infantry Museum has a superb collection of uniforms, equipment, weapons, silver, photographs and battlefield relics covering the whole history of the Regiment from its formation in 1758 to the final laying-up of the Colours in 1968 in Durham Cathedral when it joined three other county light infantry regiment to become the Light Infantry.