No uppers or lowers. No kits to build a firearm. We do not know if parts are interchangeable. It is always best to only buy parts that are specifically for your gun.
Differences between these stocks?
Rare Irish Marked SMLE Mk III Rifle By Enfield 303 British
303 NO 4 MK I ENFIELD RIFLE Original Condition with free sling and clip! – Royal Tiger Imports
Rifle Short, Magazine, Lee-Enfield - SMLE (Великобритания) - Modern Firearms
First SMLE: Short Magazine Lee-Enfield History - Guns and Ammo
The Short Magazine Lee-Enfield Rifle (S.M.L.E.)
The several Lee-Enfield rifles No.6 shortened and lightened trials rifles
Lee-Enfield Rifle, Toys for Boys Wiki
What are the differences between the SMLE and the Lee Enfield no. 4? - Quora
Sniper Central BRITISH NO4 MK1 (T)