Can I purchase replacement no-mar tips for my Bostitch model BT1855K brad nailer? Wilson October 03, 2020 18:20 Yes, order part # 179760. Related articles Common no mar tips/foot tips/safety pads for Bostitch nailers I just purchased a Bostitch model BT1855K brad nailer. The trigger is stuck and will not move. What is wrong? Comments 0 comments Please sign in to leave a comment.