Nguyen, V.H. , Dao, V.D. and Nguyen, V.D. 2022. DETERMINATION OF THE FRICTION COEFFICIENT BETWEEN THE BOLT CARRIER AND RECEIVER ASSEMBLY IN THE AMPHIBIOUS RIFLE. Journal of Science and Technique. 14, 03 (Oct. 2022). DOI:https://doi.org/10.56651/lqdtu.jst.v14.n03.442.