1903 A3 with USMC stamped barrel and Lyman receiver sight

I am a new member, I just purchased a Remington 1903 A3 that has a Lyman receiver sight mounted instead of the normal A3 rear sight. It also has a barrel stamped USMC 1-44 with a S inside a circle below the 1-44 stamp. The rifling is 4 groove. Someone has bedded the action to the stock. I want to convert this to an A4 configuration so I can use it in vintage sniper matches.
I am looking for a "C" type stock with the pistol grip and also a scope mount that will engage the rear dovetail on the receiver.
Thanks, in advance for any advice or suggestions.

original base and split top rings are hard to find. keep checking eBay. they pop up now and again but be prepared to pay.
All in all, the cheapest way I've found to source base and rings is to keep checking gunbroker for old neglected sporters, made back but when those Redfield base and rings were readily available. Another advantage being you already have a receiver drilled/tapped. New USGI barrels can still be had, or swap the replacement sledgly barrel on the one you have now.
HiLux makes a repro set of base and rings to go with their repro scopes. Their scopes have gotten pretty good. I have no experience with their mounts.
For stocks, the Minelli repro stocks can be had still on brownells. I have a thread fitting one. Wood is usually ugly under their spray-tan finish, but the fit in the important areas have been spot on for the several I've done. You'll have to fit your stock "the old way". bedding materials are against the rules for the games.

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Thanks... :cheers:

Regards,
Doug

The USMC barrel was manufactured by Sedgley hence the S in a circle. They have been known to be bent.

mark1, I must have gotten lucky because this one shoots lights out!