Coast RX311 3 in. Rapid Response Blade-Assist Knife

Item No. 23720
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Coast RX311 3 in. Rapid Response Blade-Assist Knife features blade assist technology which was designed by world class custom knife maker and inventor, Ron Lake. It uses a patented system using a roller-bearing mounted to the blade and a leaf spring mounted between the handle liners resulting in a blade that releases faster, smoother and safer than other assisted opening knives on the market.


  • 5Cr15Mov stainless steel blade and Fiberglass-filled nylon handle for incredible strength and durability
  • Thumb studs on both sides of the blade and thumb ramping on both sides of the handle make firing the blade easy from right or left side carry positions
  • A reversible, stainless steel pocket clip is included making the knife fully ambidextrous
  • The knife uses Coast's patented Max-Lock technology which provides a second lock system. This safeguard secures the blade closed when not in use and double locks the Liner-Lock when open, even if the Liner Lock is inadvertently dis-engaged
  • 3 in. blade; 7 in. overall


Blade Length3 in.
Total Length7 in.
Width1.1 in.
Height0.55 in.
Knife TypeFolding Knife