I have a Model 37 .22 cal slide action rifle. It appears to be in good condition but was missing 3 parts. I found 2 of the missing parts at Numrich but have been unable to find the third; the locking bolt plunger screw. I am still looking for this screw or possibly I can find a source to make a replacement. I am hoping to find someone who owns this rifle who will have a gunsmith make a duplicate screw for me. Please help! Any advice is welcomed.