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An assisted-opening knife is a type of folding knife which uses an internal mechanism to finish the opening of the blade once the user has partially opened it using a flipper or thumb stud attached to the blade. It's one hand operated.

Although commonly confused with switchblade knives, a switchblade can be opened automatically simply with the push of a button, but the user of an assisted-opening knife must open it about one-quarter of the way (45) before the mechanism opens the knife the rest of the way. The difference is important legally; because the blade does not open simply "by the push of a button or by force of gravity" the assisted-opening knife is typically not considered a switchblade, and may escape the restrictions applying to those in many places.

Please check your local law before purchase.
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Spring Assisted Opening Knife Serrated G10 Handle Stainless Steel Tactical Folder Spring Assist Open Pocket Folding Knife w/ Black Blade Spring Assisted Opening Knife Fire Fighter Serrated Emergency Tactical Folder Spring Assisted Opening Knife Fire Fighter Black Hook Serrated Emergency Folder
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G10 Handle Pocket Knife Spring Assist Open Pocket Folding Knife w/ Black Blade Fire Fighter Knife Fire Fighter Knife
G10 Handle Pocket Knife A thumb bolt and Spring Assist Opening allows the knife to be opened one handed. The knife features a 440 stainless steel locking liner. This is the Smooth Opening Emergency Tactical Knife Fire Fighter Edition. The blade is 440 Stainless Steel with a thumb stud for easy one handed opening.The handle features a seat belt cutter and glass breaking punch. The handle features a seat belt cutter and glass breaking punch.
Spring Assisted Opening Knife SWAT Tactical Folder Police Edition Spring Assisted Opening Knife Wood Handle Steel Tactical Folder Spring Assisted Opening Knife Drop Point Serrated Tactical Folder Spring Assisted Drop Point Tactical Folder Pocket Knife
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Spring Assisted Opening Knife Drop Point Emergency Tactical Folder Police Edition Assisted Opening Knife Serrated Wood Handle Steel Tactical Folder Drop Point Serrated Tactical Folder Knife Spring Assisted Drop Point Knife
The handle features a seat belt cutter and glass breaking punch. Wood Handle Tactical Knife The blade has been constructed from black 440 Stainless Steel with a thumb stud. The blade comes in a Drop Point style with a partial serration. The blade has been constructed from black 440 Stainless Steel with a thumb stud. The blade comes in a drop point style with a partial serration.
Spring Assisted Opening Knife Serrated G10 Handle Stainless Steel Tactical Folder Spring Assisted Opening Knife Wood Handle Steel Tactical Folder Assisted Opening Camouflage Liner Lock Pocket Folding Knife Spring Assisted Open Knife Pocket Folder Black Blade
Our Price: $11.98
Our Price: $10.98
Our Price: $11.98
Our Price: $12.98
Sale Price: $8.98
You save $4.00!
G10 Handle Pocket Knife Spring Assisted Opening Knife Serrated Wood Handle Steel Tactical Folder Assisted Opening Camo Knife Stiletto Spring Assisted Opening Knife
G10 Handle Pocket Knife Spring Assist Folder Knife The handle has been constructed from G10 with a camouflage leaf pattern. This is a beautiful Spring Assist Opening Wood Handled Folding Knife. The blade is black 440 Stainless Steel with a razor sharp edge, false upper edge. A thumb bolt and Spring Assist Opening allows the knife to be opened one handed. The knife features a 440 stainless steel locking liner.
Spring Assisted Opening Knife Fire Fighter Tactical Folder Spring Assist Open Folder Knife Ridged Blade G10 Handle Spring Assist Open Folder Pocket Knife Serrated Blade Spring Assisted Opening Black Folding Knife Folder w/ Pouch
Our Price: $11.98
Sale Price: $9.98
You save $2.00!
Our Price: $11.98
Sale Price: $9.98
You save $2.00!
Our Price: $9.98
Our Price: $11.98
Fire Fighter Stainless Steel Tactical Folding Knife Pocket Knife Spring Assist Open Folder Pocket Knife Serrated Blade Black Stainless Steel Folding Knife with Nylon Case
This is the Spring Assisted Opening Tactical Knife Fire Fighter Edition. The blade is 440 Stainles Steel with a thumb stud for easy one handed opening and a false upper edge.The blade is secured by a steel liner lock. The blade is 440 Stainless Steel with a thumb stud for easy one handed opening and a false upper edge. The blade is secured by a steel liner lock. This is a black assisted opening single edge folding knife with a safety lock and nylon carrying case.