@jlampel thank you very much for your algorithms techniques, i have tried both of them and they work for me as i expect
but i have got one more additional solution as i learn sculpting within all courses in parallel and i’ve discover another solution and need your opinion about it …
if i turned the front of the gun and use Multi-resolution modifier and maybe i try:
1- within sculpt add-on technique i could use to easily mask that area and sculpt it in shape of curve
2- another solution, if i just draw a simple curve using curve tool or even draw sculpt brush and also try to subtract it from the surface
Are these methods technically applied in industrial companies or even Are these methods efficient to be applied in todays work ?