In this quick tip we use a paint marker to make witness marks on our rifle. We can then quickly inspect the witness marks to make sure fasteners aren't coming loose during our function checks. We also use witness marks on our back up iron sights to ensure nothing has moved or shifted in transport. The witness marks are easily removed and then reapplied when you update your rifle zero.
Intro Music: Let Me Go by STEEP Source: freemusicarchive.com Used under Creative Commons License