S-1-F-3.8-G D/C .670 OAL S-1-F-3.8-G S-1-F-3.8-D D/C .670 OAL S-1-F-3.8-D S-1-F-2-G D/C .670 OAL S-1-F-2-G S-1-F-2-D D/C .670 OAL S-1-F-2-D S1F S1EL