GSS-19-2.2-G GSS-18-7-G S/C OAL GSS-18-7-G GSS-18-3.8-G S/C W/HOLE .405 OAL GSS-18-3.8-G GSS-18-2.2-G GSS-181N GSS-1-7-G S/C W/HOLE .385 OAL GSS-1-7-G GSS-152M