Possibly an "after" market set of wood for one of the hundreds of No 4 conversions done in the early 1970's?

The world and his wife were doing conversions at that time; did all the wood come out of RSAF? Or did one of the civvy stock makers in the UKicon turn his hand at forend furniture because he thought he could undercut Enfield Lock on price, pure conjecture on my part, but I do wonder......