---
product_id: 488753081
title: "Tellus FX Full-Sized Fixed Blade Knives 4.2\" Full-Tang CRYO 440C Steel Blade GRN Handle UMS Compatible Sheath"
brand: "sog"
price: "$U5121"
currency: UYU
in_stock: true
reviews_count: 13
url: https://www.desertcart.uy/products/488753081-tellus-fx-full-sized-fixed-blade-knives-4-2-full
store_origin: UY
region: Uruguay
---

# UMS compatible sheath for versatile carry 4.2" full-tang CRYO 440C steel blade Glass-reinforced nylon (GRN) handle for rugged grip Tellus FX Full-Sized Fixed Blade Knives 4.2" Full-Tang CRYO 440C Steel Blade GRN Handle UMS Compatible Sheath

**Brand:** sog
**Price:** $U5121
**Availability:** ✅ In Stock

## Summary

> 🔪 Own the wild with precision and power — the SOG Tellus FX means business.

## Quick Answers

- **What is this?** Tellus FX Full-Sized Fixed Blade Knives 4.2" Full-Tang CRYO 440C Steel Blade GRN Handle UMS Compatible Sheath by sog
- **How much does it cost?** $U5121 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/488753081-tellus-fx-full-sized-fixed-blade-knives-4-2-full)

## Best For

- sog enthusiasts

## Why This Product

- Trusted sog brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rugged Precision Cutting:** 4.2-inch CRYO 440C stainless steel blade delivers unmatched corrosion resistance and edge retention for any outdoor challenge.
- • **Customizable Carry System:** UMS-compatible sheath offers secure, adaptable mounting options so your knife is always within reach.
- • **Versatile Outdoor Companion:** Perfect for bushcraft, survival, tactical use, and camping—engineered to perform when it matters most.
- • **Exceptional Value & Heritage:** Inspired by elite special ops design, this lifetime-warrantied knife combines military-grade quality with an unbeatable price point.
- • **Ergonomic & Impact-Resistant Grip:** Glass-reinforced nylon handle ensures superior durability and comfort, even in wet or harsh conditions.

## Overview

The SOG Tellus FX is a full-sized fixed blade knife featuring a 4.2-inch full-tang CRYO 440C stainless steel blade known for superior corrosion and wear resistance. Its glass-reinforced nylon (GRN) handle offers a strong, ergonomic grip suitable for tough outdoor conditions. The knife comes with a UMS-compatible sheath that allows versatile and secure carry options. Designed for bushcraft, survival, and tactical applications, the Tellus FX blends military-inspired heritage with modern materials and craftsmanship, delivering exceptional performance and value for outdoor enthusiasts.

## Description

SOG TELLUS FX OUTDOOR FIXED BLADE KNIFE A broad-shoulder 4.2" full-tang CRYO 440C stainless steel clip point blade serves as the backbone of this powerful knife. The GRN handle is easy to manipulate when performing a wide variety of bushcrafting tasks, even when wet. The sheath provides flexibility in how and where the knife can be securely carried. From carving and whittling to chopping and slicing, the SOG Tellus FX Fixed Blade Outdoor Knife is a versatile tool that excels in a wide range of bushcrafting applications. With its durable construction, ergonomic design, and versatile carry options, it's the perfect companion for any outdoor enthusiast. ABOUT SOG Our story begins in Vietnam, where members of a highly classified US special ops unit - known as MACV-SOG - carried a unique combat knife into the jungle on covert missions. Years later, in 1986, that knife inspired a young designer, named Spencer Frazer, to found SOG Specialty Knives. His mission: to reproduce the original SOG Bowie knife and pay tribute to the special ops unit that created it.

Review: Great stainless steel knife, excellent quality - Great quality knife made of 440C stainless steel. For those unfamiliar with this particular metal, it has 1% carbon and 17% chromium. Chromium content of 12-13% is typically enough to make a steel stainless, so plenty here in this knife. Unless you store it wet or drop it in the ocean, pretty much rust proof. The size is much bigger than i expected but this is a positive as it makes for a very rugged, robust, and useful knife. Sheath is excellent, but as others noted the belt clip system is overly complicated and adds no value. Handle material feels dense and strong, with no sharp edges biting into your hand. Excellent grip. All three colors are eye pleasing. I’d recommend this knife to anyone who just wants a solid, well made and attractive knife to carry outdoors during hikes or camping. At $40-45 it’s an absolute bargain, considering many cheap knockoff brands sell for twice as much.
Review: SOG is back. - SOG has undergone a major rebranding and it is working. This is not the same SOG, it is a new and extremely improved SOG. The Tellus FX is no exception to this, a new design that's available in a fixed blade (this one) and a folding version. I am impressed enough with this version that I will soon be getting the folder too. The sheath is also an improved redesign, the belt clip is an easy adjust type where you can adjust for regular belt carry to scout carry and almost every angle of carry in between. The knife fits in smugly with barely any wiggle, but still easily removed when you need it. Another positive is how sharp it comes right out of the box, it is extremely shaving sharp. Feels good in the hand, very good ergonomics. All of this for less than $50, crazy value. Can't wait to get my folder.

## Features

- A RUGGED FIXED BLADE KNIFE - A perfect companion when you need a brawny solution for those down-and-dirty jobs when you're off the beaten path; the full-sized Tellus FX is a high-value and dependable fixed blade knife that comes big when you need it most
- CRYO 440C STAINLESS STEEL - It has the perfect combination of outstanding corrosion and wear resistance that is required for a knife destined for hard outdoor use; the stonewashed finish offers increased corrosion resistance and hides scratches
- GRN HANDLE - Nylon material for knives boasts of its strength, impact resistance, chemical inertness, and stability at high temperatures. glass fibers added to the nylon create a new and even more rugged material, glass-reinforced nylon (GRN)
- UMS COMPATIBLE SHEATH - The sheath incorporates the best parts of SOG's Universal Mounting System, allowing secure, customized carry on a wide range of outdoor adventures; this sheath ensures that your tools are always within reach when you need them most
- AT HOME IN THE FORESTS OR THE FIELDS - From bushcrafting and camping to survival and tactical applications, the SOG Tellus FX Fixed Blade Knife is ready to tackle any challenge you throw its way; rugged construction and superior performance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09SGJPQFS |
| Age Range Description | 18+ yrs |
| Best Sellers Rank | #115,972 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #266 in Fixed Blade Hunting Knives #498 in Camping Folding Knives |
| Blade Edge | drop point |
| Blade Length | 4.25 Inches |
| Blade Material | CRYO 440 Stainless Steel |
| Blade Shape | Drop Point |
| Brand Name | SOG |
| Color | Blaze |
| Customer Reviews | 4.5 4.5 out of 5 stars (184) |
| Hand Orientation | both |
| Handle Material | Blaze Orange GRN |
| Included Components | TELLUS FX - BLAZE |
| Is Product Cordless | Yes |
| Item Length | 10 Inches |
| Item Type Name | Knife |
| Item Weight | 190.06 Grams |
| Manufacturer | GSM Outdoors |
| Model Name | Tellus FX - Blaze |
| Model Number | SOG-17-06-03-43 |
| Power Source | hand_powered |
| Product Care Instructions | Hand Wash Only |
| Recommended Uses For Product | Bushcrafting |
| Reusability | Reusable |
| Special Features | Full Tang |
| Style | Tellus FX |
| Theme | Outdoor |
| UPC | 729857014106 |
| Unit Count | 1.0 Count |
| Warranty Description | Lifetime |

## Product Details

- **Age Range (Description):** 18+ yrs
- **Blade Material:** CRYO 440 Stainless Steel
- **Brand:** SOG
- **Color:** Blaze
- **Handle Material:** Blaze Orange GRN
- **Included Components:** TELLUS FX - BLAZE
- **Model Name:** Tellus FX - Blaze
- **Recommended Uses For Product:** Bushcrafting
- **Special Feature:** Full Tang
- **Style:** Tellus FX

## Images

![Tellus FX Full-Sized Fixed Blade Knives 4.2" Full-Tang CRYO 440C Steel Blade GRN Handle UMS Compatible Sheath - Image 1](https://m.media-amazon.com/images/I/51p4N9A8dxL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great stainless steel knife, excellent quality
*by W***Z on April 4, 2025*

Great quality knife made of 440C stainless steel. For those unfamiliar with this particular metal, it has 1% carbon and 17% chromium. Chromium content of 12-13% is typically enough to make a steel stainless, so plenty here in this knife. Unless you store it wet or drop it in the ocean, pretty much rust proof. The size is much bigger than i expected but this is a positive as it makes for a very rugged, robust, and useful knife. Sheath is excellent, but as others noted the belt clip system is overly complicated and adds no value. Handle material feels dense and strong, with no sharp edges biting into your hand. Excellent grip. All three colors are eye pleasing. I’d recommend this knife to anyone who just wants a solid, well made and attractive knife to carry outdoors during hikes or camping. At $40-45 it’s an absolute bargain, considering many cheap knockoff brands sell for twice as much.

### ⭐⭐⭐⭐⭐ SOG is back.
*by E***E on December 4, 2022*

SOG has undergone a major rebranding and it is working. This is not the same SOG, it is a new and extremely improved SOG. The Tellus FX is no exception to this, a new design that's available in a fixed blade (this one) and a folding version. I am impressed enough with this version that I will soon be getting the folder too. The sheath is also an improved redesign, the belt clip is an easy adjust type where you can adjust for regular belt carry to scout carry and almost every angle of carry in between. The knife fits in smugly with barely any wiggle, but still easily removed when you need it. Another positive is how sharp it comes right out of the box, it is extremely shaving sharp. Feels good in the hand, very good ergonomics. All of this for less than $50, crazy value. Can't wait to get my folder.

### ⭐⭐⭐⭐⭐ great knife
*by S***D on April 5, 2026*

Great knife. Good steel, better (more stainless) than the alternatives I was looking at for humid environments. I already had good experience with Buck 440c. It came sharp and ready to use. The sheath is good. The fancy clip is bit floppy but no issues with the screws (once I found the proper torx bit). I actually removed the clip and its mounting fixture. This way the knife and sheath are quite slim and carry well in a front pants pocket.

## Frequently Bought Together

- SOG Tellus FX Full-Sized Fixed Blade Knives 4.2" Full-Tang CRYO 440C Steel Blade GRN Handle UMS Compatible Sheath
- SOG Small Fixed Blade Knife - Instinct Boot Knife, EDC Knife, Neck Knife, 2.3 Inch Full Tang Blade w/ Knife Sheath and Clip, 4in. x 1in. x 8.5in. (NB1012-CP) , Black
- SOG Survival Knife with Sheath - Field Knife Fixed Blade Knives 4 Inch Tactical Knife and Bushcraft Knife w/Full Tang Hunting Knife Blade (FK1001-CP)

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-04-22*