At KnifeKits, we manufacture and carry the world's most extensive line of automatic coil springs which are designed to replace many popular coil springs in automatic switchblade knives today. From Combat Elite TAS Autos to Benchmade, Boker Top-Locks, Dalton Switchblades, S&W Automatics, Microtech Autos, Paragon Switchblades, Pro-Tech Automatic knives and other coil fired switchblade automatic knives, the have the coil size and strength that you need to get your favorite auto back in to top firing shape.

We offer our replacement switchblade coil springs heat-treated and cryo-treated to insure maximum performance and long action life. Our springs can also be used in custom handmade automatic knife making, as well as high-performance automatic coil spring replacements for standard production switchblades and other automatic factory knives. In most cases, our automatic switchblade springs are far superior to replacement coils offered in standard switchblade designs and can increase the action quality of your knife with simple replacement. Other performance qualities offered in our replacement coils are torque control, with both high and medium torque spring designs available where applicable to benefit the knife action.

Since we manufacture our own automatic switchblade replacement coil springs, we are not subject to the high pricing seen elsewhere. We generally offer our replacement springs for less price than any other switchblade replacement spring source available. Also, our automatic springs and other switchblade replacement accessories are designed by high-level custom automatic switchblade knife makers and are currently in use on many of the best automatic switchblade knives on the market today.

For more information about our extensive Automatic Switchblade replacement coil springs, button-lock release kits and other automatic knife accessories and tools, please follow the category links below:

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Automatic Knife Coil Spring - .375 (3/8) Diameter - (High Torque)

Our 0.375 inch automatic coil springs are designed to replace many popular automatic switchblade knives from today's popular…

Model
COIL375
Automatic Knife Coil Spring - .375 (3/8) Diameter - (MAXX Torque)

Our 0.375 inch automatic coil springs are designed to replace many popular automatic switchblade knives from…

Model
COILM375
Automatic Knife Coil Spring - .375 (3/8) Diameter - (MEGA Torque)

Our 0.375 inch automatic coil springs are designed to replace many popular automatic switchblade knives from…

Model
COILMG375
Automatic Knife Coil Spring - .43 (7/16) Diameter - (High Torque)

Our 0.430 inch (7/16") automatic coil springs are designed to replace many popular automatic switchblade…

Model
COIL43
Automatic Knife Coil Spring - .43 (7/16) Diameter - (MAXX Torque)

Our 0.43 inch (7/16) automatic coil springs are designed to replace many popular automatic switchblade knives…

Model
COILM43
Automatic Knife Coil Spring - .43 (7/16) Diameter - (MEGA Torque)

Our 0.43 inch (7/16) automatic coil springs are designed to replace many popular automatic switchblade…

Model
COILMG43
Automatic Knife Coil Spring - .50 (1/2) Diameter - (High Torque)

Our 0.50 inch (1/2") automatic coil springs are designed to replace many popular automatic switchblade knives from…

Model
COIL50
Automatic Knife Coil Spring - .50 (1/2) Diameter - (MAXX Torque)

Our 0.50 inch (1/2) automatic coil springs are designed to replace many popular automatic switchblade knives from…

Model
COILM50
Automatic Knife Coil Spring - .50 (1/2) Diameter - (MEGA Torque)

Our 0.50 inch (1/2) automatic coil springs are designed to replace many popular automatic switchblade knives…

Model
COILMG50
AUTOMATIC KNIFE CONVERSION - (Coil Spring) - DVD Instructional Video

Learn the secrets of automatic knife conversion as you follow Jonathan Musick through the steps of…

Model
DVDAKC
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