Use serial #G800911 and order the following parts:

FRAME ASSY SHORT MATTE (DBM) - PN: 106238 $68.00
TRIGGER GUARD MATTE (AT) - P/N: 105417 $24.00
MAG BOTTOM SHORT MATTE (DBM) - PN: 106245 $19.00

These are all matte finish, not glossy. You'll probably also need to order the screws from Boyd's.