An SRS check, please

[Cosine26]

Probably a Keystone stock. Keystone fabricated a "C" type stock that had very generous inletting that would accommodate the 03,(for the FSRSB), the 03
A3 (barrel guard ring) and the 03A4 (cut for the altered bolt). They were generally very oversized. The were available through the DCM and the commercial market for ~$5.00 after WWII. They can generally be identified by the letter "K" stamped in the cut out area. The generous inletting made glass bedding an 03/03A3 in one very easy. They could be worked down into a fairly deceit shape. As long as the recoil plate on the receiver, the flat under the receiver front ring, and the rear area properly bedded they could work OK-except for being oversized. I bought and used several of them. They could be used to convert any of the M903 series rifles into a cheap sporter.
FWIW

[Cosine26]

This is the picture of an SC 03A3 in A Keystone stock. The stock has been cut to sporter length and the rifle has been glass beded



http://i116.photobucket.com/albums/o...SCRifle007.jpg