BTI M&P OTF 3.5" Blade Safety Knife with Window Punch

The Uncle Henry BTI M&P OTF 3.5" blade safety knife with window punch is a reliable assisted-opening folder built for the truck, the range, or your duty belt. Unlike true automatics, this out-of-the-front knife deploys via a manual thumb slider that engages the spring-assisted mechanism—giving you control over deployment while keeping the tool legal in most jurisdictions. It's the kind of everyday carry or tactical backup blade that works as hard as you do.

The real workhorse here is the AUS-8 stainless steel blade, finished in black oxide and ground to a spear point for reliable cutting and piercing. It'll hold an edge through camp tasks, emergency situations, and general duty use without the fuss of constant maintenance. Blade retraction is equally straightforward: a dedicated release button and slider let you close it one-handed, and a sliding safety lock prevents any accidental deployment while the knife rides in your pocket or pack.

The handle is machined aluminum, finished in a practical black and gray two-tone that won't show wear or dust. Beyond the blade itself, you get a glass-breaker tool molded into the handle—handy for emergency egress—and a tip-down pocket clip that sits deep enough for discreet carry. At 6 ounces and 8.75 inches overall (5.25 inches closed), it's compact enough for EDC but substantial enough to trust when it matters. This is a no-nonsense knife for hunters, shooters, outdoors people, and anyone who needs a sharp tool they can count on.

Key Features

• Assisted-opening deployment via thumb slider with manual control and spring-assist follow-through
• AUS-8 stainless steel blade with black oxide finish—durable, corrosion-resistant, and easy to maintain
• Spear-point blade shape for versatile cutting and piercing tasks
• One-handed blade retraction with dedicated release button and slider
• Sliding safety lock prevents accidental deployment
• Integrated glass-breaker tool for emergency use
• Tip-down pocket clip for secure carry
• Aluminum handle with black and gray finish—rugged and lightweight

Specifications

Frequently Asked Questions

Is this an automatic knife?

No. The BTI M&P is an assisted-opening knife, not a true automatic. You deploy it manually using a thumb slider, which starts the blade movement and engages the spring-assist mechanism. The blade does not deploy on its own, making it compliant with the knife laws in most states and jurisdictions.

What steel is the blade made from, and how does it perform?

The blade is AUS-8 stainless steel, a proven mid-range stainless known for striking a balance between edge retention, corrosion resistance, and ease of sharpening. It's a popular choice in working and tactical knives because it holds an edge well through camp and field tasks without requiring specialized maintenance.

Can I use this knife for hunting or field dressing?

Yes. The 3.5-inch spear-point blade and AUS-8 steel make it suitable for hunting tasks, field work, and general camp use. The shape and size give you versatility for cutting, piercing, and fine detail work. Keep in mind that this is a folding knife, so you'll want to be mindful of the pivot and closure when working near hot water or blood.

Does this knife come with a sheath?

The BTI M&P is equipped with a tip-down pocket clip for carry. No separate sheath is included with this model.