DOP130MPBK095AL 13" 3/8" Pitch .050 Gauge Micro Lite Narrow Kerf Pro Chain saw Bar fits Alpina Chainsaws. Sprocket- nose. Fits Alpina model A-40, C-40, CP-41, CP-45, CP-540, CP-600, P-370, P-410, P-460, P-510, PRO-41, PRO-45, PRO-540, PRO-600 Chainsaws.