I found a nice and cheap version of the flashlight here :
https://www.aliexpress.com/item/New-tactical-flashlight-style-M300-Mini-Scout-Light-Rail-mount-LED-weapon-light-for-hunting-for/32365012199.html?spm=2114.01020208.3.154.Q99cW1&ws_ab_test=searchweb0_0,searchweb201602_0_10065_10068_10000009_10084_10083_10080_10082_10081_10060_10062_10056_10055_503_10054_10059_10099_10078_501_10079_426_10103_10073_10102_10096_10052_10050_10107_10051_10106,searchweb201603_0,afswitch_2&btsid=6de03426-5300-468f-9584-f1a8f244c634
