BENCHMADE AUTO FACT 4170BK AL/CF – Wind River Outdoor

Description

The Benchmade Auto FACT 4170BK is a modern switchblade designed for shooters, hunters, and everyday carriers who need a reliable, one-handed opening knife without fumbling under stress. Whether you’re cutting paracord after a range session, field-dressing small game, or simply opening boxes at the shop, this knife offers a clean, fast deployment that keeps your focus on the task at hand. For U.S. customers who value precision engineering and legal compliance, this model delivers a practical edge for both tactical and outdoor use.

What This Product Is and Who It’s For

The Benchmade Auto FACT 4170BK is a fully automatic, push-button switchblade produced under Benchmade’s strict quality control in Oregon City, Oregon. It is intended for responsible adults who require a dependable cutting tool for self-defense, hunting, or general utility. This knife is particularly suited for target shooters who want a quick-opening blade for range tasks, home defense users who need a one-handed deployable tool, and collectors who appreciate the combination of lightweight materials and a proven steel. It is not a novelty item; it is a functional tool built for repeated use in demanding environments.

Key Specifications

• Model: Benchmade Auto FACT 4170BK – Wind River Outdoor
• Overall Length: 7.70 inches
• Blade Length: 3.40 inches
• Blade Steel: CPM-S30V (stainless, high wear resistance, good toughness)
• Blade Finish: Black Cerakote for corrosion resistance and reduced glare
• Blade Style: Drop-point with a plain edge
• Handle Material: 6061-T6 aluminum frame with carbon fiber scales
• Handle Color: Black aluminum, black carbon fiber
• Lock Mechanism: Push-button automatic (switchblade) with a safety slide
• Weight: 2.50 ounces
• Clip: Reversible deep-carry pocket clip (tip-up, left/right)
• Country of Origin: USA (Oregon)
• Warranty: Limited lifetime (manufacturer defects)

Feature Deep-Dive

The 4170BK’s automatic deployment is driven by a robust internal spring mechanism that extends the blade fully upon pressing the ambidextrous button. This system is designed for reliable, consistent operation even after hundreds of cycles. The push-button is recessed into the handle to prevent accidental activation, while a manual safety slide on the side locks the blade closed or open. This combination gives you confidence when carrying in a pocket or deploying under duress.

The blade steel, CPM-S30V, is a powder metallurgy stainless steel known for holding a sharp edge through heavy use while resisting corrosion. Benchmade heat-treats this steel to a hardness of 58-60 HRC, balancing edge retention with ease of sharpening in the field. The black Cerakote finish adds a layer of protection against moisture and scratches, making it suitable for humid environments or light outdoor exposure. The drop-point profile provides a strong tip for piercing tasks and a broad belly for slicing, making it versatile for game processing or cutting rope.

Handle construction uses a 6061-T6 aluminum frame with carbon fiber inserts. Aluminum provides structural rigidity without adding weight, while carbon fiber reduces overall mass and offers a non-slip texture. The handle is contoured for a neutral grip, fitting most hand sizes without hot spots. The deep-carry pocket clip allows the knife to sit low in the pocket, reducing visible profile during concealed carry. The clip is reversible for tip-up carry on either side, accommodating left- and right-handed users.

Benchmade includes a patented AXIS lock in many of their manual knives, but the Auto FACT uses a simpler push-button lock with a steel liner that engages the blade tang. This design is easier to operate with gloves and provides a solid lockup with minimal blade play. The pivot uses a bronze washer system for smooth action, and the knife can be disassembled for cleaning with standard Torx tools (T6 and T8 bits). The overall build quality is consistent with Benchmade’s reputation for tight tolerances and durable components.

The 4170BK is legal to carry in many U.S. states that permit automatic knives, but it is the buyer’s responsibility to verify local laws. Benchmade ships this knife with a plastic sheath and a cardboard box, along with a nylon pouch for storage. The knife does not include a lanyard hole, but the clip provides adequate retention. This model is part of Benchmade’s Wind River Outdoor series, which emphasizes field-ready tools for hunters and outdoorsmen rather than purely tactical applications.

Ideal Use Cases

• Concealed Carry: Lightweight at 2.5 oz and a slim profile, the Auto FACT fits easily in a front pocket or waistband pouch. The automatic deployment allows one-handed opening without shifting your grip on a firearm or other object.
• Home Defense: As a backup tool for cutting seatbelts, opening doors, or defensive use, the 4170BK offers immediate access. The safety prevents accidental opening in a drawer or nightstand.
• Hunting: The drop-point blade and S30V steel handle field-dressing tasks for small to medium game. The black finish reduces reflection in the field.
• Range Use: Useful for cutting targets, opening ammunition boxes, or clearing obstructions. The pocket clip keeps it accessible without bulky sheaths.
• Everyday Utility: For opening packages, cutting cord, or light camping chores, the knife performs reliably without constant resharpening.

Compatibility Notes

• Ammunition: Not applicable. This is a knife, not a firearm. No ammunition is required or compatible.
• Holsters: The knife fits standard pocket clips and small fixed-blade sheaths. For dedicated carry, consider a horizontal belt sheath or a pocket organizer designed for automatic knives up to 4-inch blades.
• Magazines: No magazine compatibility. The knife is a standalone tool.
• Accessories: Replacement pocket clips (Benchmade part #CLIP-4170), Torx bits for disassembly, and aftermarket carbon fiber scales are available from third-party vendors. Benchmade offers factory sharpening services.
• Edge Maintenance: Use a ceramic rod or diamond stone for touch-ups. For full resharpening, a guided system or professional service is recommended due to the S30V steel’s hardness.

FAQ

1. Can Benchmade Auto FACT 4170BK be shipped to my state?
We ship to all U.S. states where automatic knives are legal for civilian ownership. Some states (e.g., California, New York, Massachusetts, Hawaii, and others) have restrictions on automatic knives. It is your responsibility to check local laws before ordering. We do not ship to P.O. boxes or APO/FPO addresses without prior confirmation.

2. What is the FFL transfer process for this knife?
This knife is not a firearm and does not require an FFL transfer. It ships directly to your doorstep via USPS or UPS with adult signature required (age 18+). No background check or dealer involvement is needed. You must be at least 18 years old to purchase and receive this product.

3. What ammunition is compatible with this knife?
This is a knife, not a firearm. No ammunition is used with this product. Please do not attempt to load or modify the knife for any ballistic function.

4. What is the warranty on the Benchmade Auto FACT?
Benchmade provides a limited lifetime warranty against manufacturing defects in materials and workmanship. This covers blade breakage, lock failure, and spring issues under normal use. It does not cover damage from misuse, sharpening, or modifications. We also accept returns within 30 days of delivery for unused, unaltered knives in original packaging. Contact us for a return authorization before shipping.

5. How do I return or exchange this product?
Returns are accepted within 30 days of delivery. The knife must be unused, unsharpened, and in original packaging with all accessories. We do not accept returns on used knives due to hygiene and safety regulations. To initiate a return, email us with your order number and reason. We will provide a prepaid return label. Refunds are processed within 5 business days after inspection. Exchanges are subject to stock availability.

Closing Call to Action

This Benchmade Auto FACT 4170BK ships directly to your door in most U.S. states with no FFL required. Add it to your cart now, and we’ll handle the rest. Free shipping on orders over $150. We serve customers nationwide from our licensed FFL location. Order today for fast, discreet delivery.