Amazon.com : Cold Steel 4-Max Scout Folding Knife with Tri-Ad Lock and G-10 Handle, One Size : Sports & Outdoors
Cold Steel Recon 1 Series Tactical Folding Knife with Tri-Ad Lock and Pocket Clip - Made with Premium CPM-S35VN Steel, Tanto Half Serrated - $79.99 (Free S/H over $25) | gun.deals
compression lock vs. tri-ad lock? - Spyderco Forums
First cold steel:) Tri-Ad lock is really hard to disengage : r/knifeclub
Triad Lock - Common Misconceptions & Merits | BladeForums.com