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4 Inch Blade Automatic Knives or Less

4 Inch Blade Automatic Knives or Less

Four inch blade automatic knives or less for sale.

Shop 4-inch blade automatic knives or less offering fast, one-handed deployment and powerful cutting ability. These mid-size autos deliver quick access and dependable performance for work, outdoor use, and daily tasks. Ideal for users wanting speed, strength, and pocket-friendly carry.
Check out our great prices on automatic knives with blades 4 inches or shorter below.

4 Inch Blade Automatic Knives or Less (Total Items:1064)

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SWOTF9B Smith & Wesson OTF Assist Finger Actuator

Smith & Wesson OTF Assist Finger Actuator - SWOTF9B

OTF Finger Actuator. Assisted opening. 5.5" closed. 3.63" black finish AUS-8 stainless spear point blade. Black sculpted aluminum handle. Glass breaker. Pocket clip. Boxed. Made in Taiwan.
$55.83
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SWOTF9BS Smith & Wesson OTF Assist Finger Actuator

Smith & Wesson OTF Assist Finger Actuator - SWOTF9BS

OTF Finger Actuator. Assisted opening. 5.5" closed. 3.63" black finish partially serrated AUS-8A stainless spear point blade. Black sculpted aluminum handle. Glass breaker. Pocket clip. Boxed. Made in Taiwan.
$55.83
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SWOTF9TB Smith & Wesson OTF Assist Finger Actuator

Smith & Wesson OTF Assist Finger Actuator - SWOTF9TB

OTF Finger Actuator. Assisted opening. 5.5" closed. 3.63" black finish AUS-8 stainless tanto blade. Black sculpted aluminum handle. Glass breaker. Pocket clip. Boxed. Made in Taiwan.
$55.83
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SWOTF9TBS Smith & Wesson OTF Assist Finger Actuator

Smith & Wesson OTF Assist Finger Actuator - SWOTF9TBS

OTF Finger Actuator. Assisted opening. 5.5" closed. 3.63" black finish partially serrated AUS-8 stainless tanto blade. Black sculpted aluminum handle. Glass breaker. Pocket clip. Boxed. Made in Taiwan.
$60.90
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G1263 Gerber Auto 06 10th Anniversary Drop Point Knife Green

Gerber Auto 06 10th Anniversary Drop Point Knife Green - G1263

Automatic opening. 5" (12.7cm) closed. 3.75" (9.53cm) stonewash finish CPM S30V stainless drop point blade. Green Cerakote aluminum handle. Glass breaker. Lanyard hole. Pocket clip. Safety switch. 10th Anniversary reverse flag laser mark. Boxed. Made by Gerber in the USA.
$239.99
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KS7800BLK Kershaw Auto Launch 6 Button Lock Knife

Kershaw Auto Launch 6 Button Lock Knife - KS7800BLK

Automatic opening. 5" (12.7cm) closed. 3.75" (9.53cm) black Cerakote finish CPM-154 stainless drop point blade. Black anodized aluminum handle. Pocket clip. Boxed. Made by Kershaw in the USA.
$144.00
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KS7900GRYBLK Kershaw Auto Launch 7 Button Lock Knife

Kershaw Auto Launch 7 Button Lock Knife - KS7900GRYBLK

Automatic opening. 5" (12.7cm) closed. 3.75" (9.53cm) black Cerakote finish CPM-154 stainless drop point blade. Gray anodized aluminum handle. Pocket clip. Boxed. Made by Kershaw in the USA.
$138.24 $107.51 Sale
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BCAC550B4P Bear & Son Auto Bold Action V Button Lock Knife

Bear & Son Auto Bold Action V Button Lock Knife - BCAC550B4P

Automatic opening. 5" (12.7cm) closed. 3.63" (9.22cm) bead blast finish 14C28N Sandvik stainless tanto blade. Black and green G10 handle. Lanyard hole. Pocket clip. Safety mechanism. Boxed. Made by Bear and Son in the USA.
$131.84
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BCAC550B4B Bear & Son Auto Bold Action V Button Lock Knife

Bear & Son Auto Bold Action V Button Lock Knife - BCAC550B4B

Automatic opening. 5" (12.7cm) closed. 3.63" (9.22cm) black finish 14C28N Sandvik stainless tanto blade. Black and green G10 handle. Lanyard hole. Pocket clip. Safety mechanism. Boxed. Made by Bear and Son in the USA.
$134.40
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EOS123 EOS Automatic Harpoon Out The Front Pocket Knife Gray

EOS Automatic Harpoon Out The Front Pocket Knife Gray - EOS123

Automatic opening. 5.5" (13.97cm) closed. 3.75" (9.53cm) CPM-20CV stainless blade. Gray aluminum handle. Pocket clip. Black and satin finish blade. Blue anodized titanium hardware. Boxed. Made by EOS in the USA.
$396.90 $314.99 Sale
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H030B6APUCF Heretic Knives Automatic Manticore Out the Front Pocket Knife

Heretic Knives Automatic Manticore Out the Front Pocket Knife - H030B6APUCF

5.5" (13.97cm) closed. 3.75" (9.53cm) black DLC coated Elmax steel bowie blade. Black anodized aluminum handle with Purple camo carbon fiber back handle. Glass breaker. Lanyard hole. Pocket clip. Serialized. Boxed. Made by Heretic Knives in the USA.
$599.00
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H0336APUCF Heretic Knives Automatic Manticore Out the Front Pocket Knife

Heretic Knives Automatic Manticore Out the Front Pocket Knife - H0336APUCF

5.5" (13.97cm) closed. 3.75" (9.53cm) black DLC coated Elmax steel blade. Black anodized aluminum handle with Purple camo carbon fiber back handle. Glass breaker. Lanyard hole. Pocket clip. Recurve blade. Serialized. Boxed. Made by Heretic Knives in the USA.
$599.00
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SC165GSOR Spyderco Automatic Autonomy Button Lock Pocket Knife

Spyderco Automatic Autonomy Button Lock Pocket Knife - SC165GSOR

Automatic opening. 5" (12.7cm) closed. 3.75" (9.53cm) satin finish serrated H1 steel blade. Orange G10 handle. Thumb pull. Lanyard hole. Pocket clip. Safety mechanism. Boxed. Made by Spyderco in the USA.
$276.00
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EOS120 EOS Automatic Black Blue Black Razor Pocket Knife

EOS Automatic Black Blue Black Razor Pocket Knife - EOS120

5.5" (13.97cm) closed. 3.75" (9.53cm) CPM-20CV stainless blade. Black anodized aluminum handle. Pocket clip. Black DLC and stonewash finish blade. Boxed. Made by EOS in the USA.
$379.26 $302.39 Sale
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EOS113 EOS Automatic Harpoon OTF Pocket Knife Black/Stonewash

EOS Automatic Harpoon OTF Pocket Knife Black/Stonewash - EOS113

Automatic opening. 5.5" (13.97cm) closed. 3.75" (9.53cm) two-tone finish CPM-20CV stainless tanto blade. Black anodized aluminum handle. Pocket clip. Stonewash accents. Boxed. Made by EOS in the USA.
$379.26 $302.39 Sale
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EOS121 EOS Automatic Harpoon Pocket Knife OTF Black/Blue

EOS Automatic Harpoon Pocket Knife OTF Black/Blue - EOS121

Automatic opening. 5.5" (13.97cm) closed. 3.75" (9.53cm) two-tone finish CPM-20CV stainless tanto blade. Black anodized aluminum handle. Pocket clip. Blue anodized accents. Boxed. Made by EOS in the USA.
$379.26 $314.99 Sale
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H0326CU Heretic Knives Automatic Manticore X OTF Pocket Knife Ultem

Heretic Knives Automatic Manticore X OTF Pocket Knife Ultem - H0326CU

Automatic opening. 5.5" (13.97cm) closed. 3.75" (9.53cm) black DLC coated serrated MagnaCut steel spear point blade. Black aluminum handle with Ultem inlay. Glass breaker. Lanyard hole. Pocket clip. Double edge blade. Boxed. Made by Heretic Knives in the USA.
$620.20
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SOG15610157 SOG Automatic Pentagon Out the Front Pocket Knife Blackout

SOG Automatic Pentagon Out the Front Pocket Knife Blackout - SOG15610157

4" (10.16cm) closed. 3.75" (9.53cm) black TiNi coated S35VN stainless spear point blade. Black aluminum handle. Pocket clip. Dynamic Locking System. OTF Switch. Boxed. Made by SOG in the USA.
$296.94
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BCB4099 Blackjack Automatic OTF Bayonet Pocket Knife

Blackjack Automatic OTF Bayonet Pocket Knife - BCB4099

Automatic opening. 5.63" (14.3cm) closed. 4" (10.16cm) black matte finish 154CM stainless blade. Black matte finish aluminum handle. Pocket clip. Glass breaker. Lanyard hole. Bayonet style blade. Black nylon zippered storage case. Boxed. Made by Blackjack in the USA.
$238.04 $204.79 Sale
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EOS110 EOS Automatic Harpoon OTF Pocket Knife Black

EOS Automatic Harpoon OTF Pocket Knife Black - EOS110

Automatic opening. 5.38" (13.67cm) closed. 3.75" (9.53cm) stonewash finish CPM-20CV stainless tanto blade. Black anodized aluminum handle. Pocket clip. Boxed. Made by EOS in the USA.
$379.26 $302.39 Sale
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MCT219R10APS Microtech Automatic Combat Hellhound Pocket Knife

Microtech Automatic Combat Hellhound Pocket Knife - MCT219R10APS

This automatic pocket knife is 5.75" (14.61cm) closed. 3.88" (9.86cm) Apocalyptic finish Bohler M390 stainless blade. Black anodized aluminum handle. Glass breaker. Lanyard hole. Pocket clip. Razor style blade. Boxed. Made by Microtech in the USA.
$757.90
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MCT22711 Microtech Automatic Dirac Delta D/E OTF Pocket Knife

Microtech Automatic Dirac Delta D/E OTF Pocket Knife - MCT22711

This automatic OTF knife is 5.63" (14.3cm) closed. 3.79" (9.63cm) Apocalyptic finish partially serrated Bohler M390 stainless dagger blade. Black anodized aluminum handle. Glass breaker. Lanyard hole. Pocket clip. Double edge blade. Boxed. Made by Microtech in the USA.
$399.00
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MCT22712 Microtech Automatic Dirac Delta D/E OTF Pocket Knife

Microtech Automatic Dirac Delta D/E OTF Pocket Knife - MCT22712

This automatic OTF knife is 5.63" (14.3cm) closed. 3.79" (9.63cm) stonewash finish serrated Bohler M390 stainless dagger blade. Black anodized aluminum handle. Glass breaker. Lanyard hole. Pocket clip. Double edge blade. Boxed. Made by Microtech in the USA.
$407.00
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MCT1421CTDSH Microtech Automatic Combat Troodon D/E OTF Pocket Knife

Microtech Automatic Combat Troodon D/E OTF Pocket Knife - MCT1421CTDSH

This automatic OTF knife is 5.75" (14.61cm) closed. 3.88" (9.86cm) black DLC coated double edge Bohler M390 stainless dagger blade. Black frag pattern G10 handle. Glass breaker. Lanyard hole. Pocket clip. Boxed. Made in USA.
$1,006.72
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MCT6013THS Microtech Automatic Hs Rescue Tool Pocket Knife Black

Microtech Automatic Hs Rescue Tool Pocket Knife Black - MCT6013THS

This automatic pocket knife is 5.75" (14.61cm) closed. 3.88" (9.86cm) partially serrated Bohler M390 stainless guthook blade. Black frag pattern G10 handle. Glass breaker. Lanyard hole. Pocket clip. Black Cerakote and satin finish blade. Boxed. Made by Microtech in the USA.
$564.85
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EOS116 EOS Automatic Pocket Knife Harpoon Venti Bronze

EOS Automatic Pocket Knife Harpoon Venti Bronze - EOS116

Automatic opening. 5.5" (13.97cm) closed. 3.75" (9.53cm) two-tone finish double edge MagnaCut steel dagger blade. Bronze Venti aluminum handle. Pocket clip. Boxed. Made by EOS in the USA.
$396.90 $314.99 Sale
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EOS118 EOS Automatic Pocket Knife Harpoon OTF White

EOS Automatic Pocket Knife Harpoon OTF White - EOS118

Automatic opening. 5.5" (13.97cm) closed. 3.75" (9.53cm) CPM-20CV stainless blade. White finish aluminum handle. Pocket clip. Black oxide and satin finish blade. Boxed. Made by EOS in the USA.
$396.90
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MCT14216DLCTULS Microtech Automatic Combat Troodon Pocket Knife D/E Damascus OTF

Microtech Automatic Combat Troodon Pocket Knife D/E Damascus OTF - MCT14216DLCTULS

This automatic OTF knife is 5.75" (14.61cm) closed. 3.88" (9.86cm) black DLC coated Damascus steel dagger blade. Ultem handle with black aluminum back handle. Glass breaker. Lanyard hole. Pocket clip. Boxed. Made by Microtech in the USA.
$1,489.00
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BHSI101BK Blackhawk Automatic Pocket Knife Send It! All Black OTF

Blackhawk Automatic Pocket Knife Send It! All Black OTF - BHSI101BK

Automatic opening. 5.5" (13.97cm) closed. 3.75" (9.53cm) black DLC coated D2 tool steel tanto blade. Black anodized aluminum handle. Lanyard hole. Pocket clip. Boxed with hanging tab. Made in USA.
$204.80
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EOS111 EOS Automatic Pocket Knife Black & Satin Dagger

EOS Automatic Pocket Knife Black & Satin Dagger - EOS111

Automatic opening. 5.5" (13.97cm) closed. 3.75" (9.53cm) satin finish MagnaCut steel dagger blade. Black DLC coated aluminum handle. Pocket clip. Boxed. Made by EOS in the USA.
$379.26 $302.39 Sale
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EOS115 EOS Automatic Pocket Knife Black 2 Tone Hex Dagger

EOS Automatic Pocket Knife Black 2 Tone Hex Dagger - EOS115

Automatic opening. 5.5" (13.97cm) closed. 3.75" (9.53cm) two-tone satin finish double edge MagnaCut steel dagger blade. Black sculpted aluminum handle. Pocket clip. Boxed. Made by EOS in the USA.
$423.36 $340.19 Sale
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H00810ABLU Heretic Automatic Pocket Knife Hydra Recurve 2Tone Blue

Heretic Automatic Pocket Knife Hydra Recurve 2Tone Blue - H00810ABLU

Automatic opening. 5.5" (13.97cm) closed. 3.63" (9.22cm) two-tone finish MagnaCut steel blade. Blue aluminum handle. Lanyard hole. Pocket clip. Recurve blade. Boxed. Made by Heretic Knives in the USA.
$434.00
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H00810AHCAMO Heretic Automatic Pocket Knife Hydra Recurve 2Tone Camouflage

Heretic Automatic Pocket Knife Hydra Recurve 2Tone Camouflage - H00810AHCAMO

Automatic opening. 5.5" (13.97cm) closed. 3.63" (9.22cm) two-tone finish MagnaCut steel blade. Heretic camo aluminum handle. Lanyard hole. Pocket clip. Recurve blade. Boxed. Made by Heretic Knives in the USA.
$523.34
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MCT219R10S Microtech Automatic Combat Hellhound Razor Pocket Knife SW

Microtech Automatic Combat Hellhound Razor Pocket Knife SW - MCT219R10S

This automatic pocket knife is 5.75" (14.61cm) closed. 3.88" (9.86cm) stonewash finish Bohler M390 stainless blade. Black anodized aluminum handle. Glass breaker. Lanyard hole. Pocket clip. Boxed. Made by Microtech in the USA.
$772.20
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H00810APU Heretic Automatic Pocket Knife Hydra OTF Recurve Purple

Heretic Automatic Pocket Knife Hydra OTF Recurve Purple - H00810APU

Automatic opening. 5.5" (13.97cm) closed. 3.63" (9.22cm) two-tone finish MagnaCut steel blade. Purple aluminum handle. Lanyard hole. Pocket clip. Recurve blade. Boxed. Made by Heretic Knives in the USA.
$434.00
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H00810BRCAMO Heretic Automatic Pocket Knife Hydra OTF Recurve Red Camo

Heretic Automatic Pocket Knife Hydra OTF Recurve Red Camo - H00810BRCAMO

Automatic opening. 5.5" (13.97cm) closed. 3.63" (9.22cm) two-tone finish partially serrated MagnaCut steel tanto blade. Red camo aluminum handle. Pocket clip. Lanyard hole. Boxed. Made by Heretic Knives in the USA.
$518.00
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H00811ATXGRN Heretic Automatic Pocket Knife Hydra OTF Recurve Toxic

Heretic Automatic Pocket Knife Hydra OTF Recurve Toxic - H00811ATXGRN

Automatic opening. 5.5" (13.97cm) closed. 3.63" (9.22cm) two-tone finish MagnaCut steel blade. Toxic green aluminum handle. Pocket clip. Lanyard hole. Recurve blade. Boxed. Made by Heretic Knives in the USA.
$441.00
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H032F10CGRN Heretic Automatic Pocket Knife Manticore X OTF Frag DE

Heretic Automatic Pocket Knife Manticore X OTF Frag DE - H032F10CGRN

Automatic opening. 5.5" (13.97cm) closed. 3.75" (9.53cm) two-tone finish serrated MagnaCut steel spear point blade. OD green aluminum handle. Glass breaker. Lanyard hole. Pocket clip. Frag pattern handle. Double edge blade. Boxed. Made by Heretic Knives in the USA.
$385.00
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H0482A Heretic Automatic Pocket Knife Pariah Button Lock SW

Heretic Automatic Pocket Knife Pariah Button Lock SW - H0482A

Automatic opening. 5.13" (13.03cm) closed. 3.75" (9.53cm) stonewash finish CPM MagnaCut stainless drop point blade. Black aluminum handle with black grip tape inlay. Lanyard hole. Pocket clip. Boxed. Made by Heretic Knives in the USA.
$385.00
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MCT1422CTDSH Microtech Automatic Pocket Knife Combat Troodon D/E OTF Black

Microtech Automatic Pocket Knife Combat Troodon D/E OTF Black - MCT1422CTDSH

This automatic OTF knife is 5.75" (14.61cm) closed. 3.88" (9.86cm) black DLC coated double edge premium steel dagger blade. Black aluminum handle. Glass breaker. Lanyard hole. Pocket clip. Frag pattern handle. Nickel boron internals. Boxed. Made by Microtech in the USA.
$995.00
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MCT17021NC Microtech Automatic Pocket Knife Hera II OTF

Microtech Automatic Pocket Knife Hera II OTF - MCT17021NC

This automatic OTF knife is 5.5" (13.97cm) closed. 4" (10.16cm) two-tone finish double edge premium steel dagger blade. Gray stonewash finish aluminum handle. Pocket clip. Lanyard hole. Glass breaker. Boxed. Made by Microtech in the USA.
$537.00
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MCT170510 Microtech Automatic Pocket Knife Herra II OTF Recurve SW

Microtech Automatic Pocket Knife Herra II OTF Recurve SW - MCT170510

This automatic OTF knife is 5.5" (13.97cm) closed. 4" (10.16cm) stonewash finish premium steel recurve blade. Black aluminum handle. Pocket clip. Lanyard hole. Glass breaker. Boxed. Made by Microtech in the USA.
$500.00
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