cal:.30, semi-auto, includes documentation and records (see photos), includes gas cylinder lock, sn: 1507504, from Mr. Davis's records: I purchased this rifle from an M1 dealer from Atlanta. The rifle is correct in every respect. It was made into a sniper rifle in the 1950’s. There is a CMP certificate in the safe that should go with the rifle. I paid more for this rifle than any other in the collection $4753. There is one similar to mine on the CMP auction site for over $5000. I believe that it will bring more than the purchase price. There is a CMP certificate in the safe that should be displayed with the rifle when it is sold; per purchase records: includes USGI M84 scope, USGI scope mount, USGI leather cheek piece and USGI T37 flash hider, the stock has correct SA open box cartouche, see documents from 2017 regarding optics updates, NOTE: There is a $25 transfer fee per firearm for transfer and/or processing payable to Gun World, whether the firearm is picked up or shipped