Benchmade Sibert 275BK Adamas


The Adamas® folding knives come in both manual and automatic and have proven to be the strongest AXIS® knives ever made. A thick blade, liners and G10 handle scales afford the knife much of it's strength. In addition, a portion of the proceeds from these knives are donated to Three Rangers and to the Navy SEAL Foundation; both organizations benefiting the members and families of special operations. MOLLE® compatible. Made in USA. 


Designer: Shane Sibert

Mechanism: AXIS

Action: Manual-opening

Blade Steel: D2 (60-62 HRC)

Blade Length: 3.82" (9.70cm)

Blade Thickness: 0.160" (4.06mm)

Open Length: 8.70" (22.10cm)

Closed Length: 4.88" (12.40cm)

Handle Thickness: 0.73" (18.54mm)

Weight: 7.68oz. (217.72g)

Sheath Weight: 1.50oz. (42.52g)



Blade Edge Serrated

Blade Finish/Color Coated

Blade Steel D2 (60-62 HRC)

Blade Style/Shape Drop-point

Clip Type Deep-Carry, MALICE CLIP® (MOLLE Compatible)

Clip Position Reversible Tip-Up

Glass Breaker No

Handle Material Black G10

Lanyard Hole Yes

MOLLE Compatible Yes

Sheath Type Cordura

Use Tactical

Customer Reviews

Based on 1 review
Perhaps this is the knife to bring to a gun backup.

The knife is definitely built to last. Came sharp out of the box but could use some fine tuning if your looking for razor sharp (maybe it was just mine?). Went from a Griptilian to this and couldn't be happier, however it may be too large for EDC for some. Bottom line, you get what you pay for and this knife was worth every penny.