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$249.95
Color:Blackout
Handle Length:5 in
Quantity:
Shipped & sold by GSM Factory Direct
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Description
Representing an evolutionary step in hard-use fixed blade knives, Pentagon FX is a full-sized knife made for the modern-day warfighter. It features a double-edge CYRO S35VN full-tang steel blade, removable G10 handles and a GRN sheath compatible with SOG's next-generation Universal Mounting System. It's fully customizable to meet the demands of various missions, and purposefully designed to exceed expectations. Part # 17-61-01-57 SOG HAS RAISED THE BAR WITH THE PENTAGON FX "SOG has raised the bar! The Pentagon FX is the real deal! Ive had it a couple weeks and have put it through the test. Sharp, balanced, and feels great in hand. The sheath is versatile. The scales remove for different uses." - Customer review, July 2021 HANDLES ON OR OFF Pentagon FXs sheath system isnt the only thing thats adaptable. The handles can also be removed for a slimmer profile. MISSION-CUSTOMIZABLE SET-UP Pentagon FX comes with multiple accessories from SOGs Universal Mounting System. It allows for flexible mission specific set-up, including adjustable sheath retention, secondary retention, mounting angle, mounting method and combinations of each. Pentagon FX is an advanced design fixed blade. It features a CRYO S35VN blade and muscular G10 handles that are easily removed for a slimmer and lighter profile. Its GRN sheath comes equipped with accessories from SOG's Universal Mounting System that allow for a flexible, mission-specific set up. CRYO CPM S35VN STEEL An American-made steel featuring vanadium and niobium carbides that provide high degrees of toughness and wear resistance. G10 HANDLES Textured for optimal grip, the G10 handles feature a single-fastener slip-on / slip-off design that allows you to customize your knife to your mission's needs. ADJUSTABLE SHEATH RETENTION No-tool sheath adjustment allows you to increase or decrease the retention strength as needed.
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10 of 29 SOG Pentagon Fx - Blackout Reviews

Hard to find anything wrong with my purchase. Very good knife.

Sog really outdid themselves, customizable to the bone, a strong tip and more. I want to point out this is a professional tool, it's not designed to cut paper, I assure you it will cut an oppponent. It's a matter of density of materials, flesh is easier to cut than most materials. Plus, this is a stabbing weapon, it will do it's job, slashing and thrusting, just don't try to cut paper with it, it is designed for another purpose.

This really impressed me. The quality of the knife and materials. Really like how your going ambidextrous on the sheaths. The weight and the feel of the knife is spot on. Glad that there is a company that makes a double edge knife still. Sick and tired of these other companies too afraid to make a double edge blade, I always had to grind the other side of their blade. Oh yea the blade comes very sharp out of the box, that put a big smile on my nasty face.

Strong dagger type knife built with quality materials

It’s a great knife with a great sheath. Super tough and strong, even well balanced. Sheath and mounting are easy and solid. Point of the knife was moderately sharp, but the edges couldn’t even cut paper… I was expecting a little more from SOG, when they proclaimed it excelled in slashing and thrusting. It’s a very near perfect knife in my opinion, except the edges of the knife are extremely dull. If the sides could catch a thumbnail or curl paper it would be the best knife I’ve ever owned, but since it’s basically a big glorified poker… I give it a 5.5/10. If SOG can figure a way to sharpen the sides and make them “slicey” like advertised I’ll take back my review, until that geometry is figured out… to actually make it combat worthy… my review stands.

Excellent knife, aswome steel, impractical design, sheeth is solid no wobble.

The Best Knife I Ever Owned I definitely recommend you buy this if you have the money

The quality is top notch and the CPM S35VN is heat treated to perfection. I carry three of these knives, one for hard use and two for throwing.

Great knife. Just about every aspect is quality except for the finish that is easily rubbing off the exposed metal on the tang as well as hand guard/bolster area.
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Jan 03, 2025
By GmanC
Was looking for a nice carry knife and this is very good and balanced. Definitely worth the price