A little over a decade ago, Tactical Knives magazine showcased the then-new Duane Dieter-designed Masters of Defense (MOD) “Close Quarters Defense” tactical folder. Marketed as the “most advanced tactical folder of all time,” the heavy-duty knife had many appealing features. Its superior design and construction commanded a premium price of $269.98 in 1999. Although the CQD was worth the investment, its high cost made it inaccessible to many potential users who needed it most. Therefore, there was excitement when Blackhawk announced their plans to release a made-in-Taiwan second-generation CQD at a more affordable price point. However, there were concerns that lowering the price might compromise the qualities that made the original knife a top-tier piece of equipment. But the new "Blackhawk! CQD" turned out to be surprisingly close to the original in quality.
Design and Features of the CQD Mark I
The CQD Mark I has an AUS-8 blade that is 3.75 inches long, with an overall open length of 9.5 inches. When closed, the knife measures 5-5/8 inches, primarily due to the ¾-inch seatbelt/cord cutter integrated into the frame. The handle is constructed from reinforced nylon with non-slip grip panels and stainless steel liners. The steel pocket clip is reversible, allowing for tip-down carry on either the right or left side.
Masters of Defense emerged in the late 90s, creating deadly designs through collaborations with renowned knife makers, martial artists, and self-defense instructors. While the exact timeline of the transition is unclear, this particular model predates the Blackhawk acquisition and exhibits exceptional craftsmanship. It evokes memories of the high-quality, US-made knives of the past.
The Dieter CQD boasts excellent ergonomics and is designed to be easily used even while wearing gloves, a common practice among military personnel. The grip-tape provides secure retention, and two ridges on the front of the handle prevent the hand from slipping onto the blade. A discreet safety mechanism is located on the thumb ramp of the handle, enhancing its functionality. The carbide glass-breaker is positioned at the front of the handle, rendering it unusable unless the blade is closed, which is a thoughtful safety measure. The back end of the handle features a concealed line/seat belt cutter that minimizes the risk of accidental cuts.
The blade is black and exceptionally sharp. The Masters of Defense version was available in Bead Blast, Damascus, and PVD coated blades. However, the current Blackhawk version is only offered in black.
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CQD Mark II: A More Concealable Option
The Masters of Defense Dieter CQD Mark II is a smaller, more concealable version of the Mark I. Similar to its larger counterpart, the Mark II features high-strength milled-aluminum construction, a state-of-the-art plunge lock mechanism, and a secondary safety lock to prevent accidental release during use.
The butt of the Mark II's handle incorporates a carbide glass breaker, expanding its utility in both operational and rescue scenarios. This feature also allows for focused impact strikes to pressure points during close-quarters combat.
Materials and Construction
The original MOD CQD knives were known for using high-quality materials. The blade material was often 154CM stainless steel, known for its good balance of hardness, toughness, and corrosion resistance. The handles were typically made from aircraft-grade aluminum, providing a lightweight yet durable grip. The Blackhawk! versions sought to maintain a similar level of quality while reducing costs. The use of AUS-8 steel in the Blackhawk! CQD Mark I is a testament to this, as it offers a good compromise between performance and cost.
Ergonomics and Handling
The ergonomics of the Duane Dieter CQD knives are a standout feature. The handle design allows for a secure and comfortable grip, even in demanding situations. The inclusion of features like jimping (ridges) on the spine of the blade and strategically placed grooves on the handle further enhance grip and control. The reversible pocket clip allows for ambidextrous carry, catering to a wider range of users. The integrated glass breaker and seatbelt cutter add to the knife's versatility, making it a valuable tool for emergency situations.
A Look at Masters of Defense (MOD)
Masters of Defense was an American brand that produced tactical knives in the late 1990s and early 2000s. The company collaborated with well-known knife makers and martial arts instructors to create innovative and high-performance designs. Their knives were known for their robust construction, premium materials, and unique features. Although the brand is no longer in business, its designs and reputation continue to be appreciated by knife enthusiasts. Blackhawk! acquired the rights to the MOD designs and has continued to produce some of the models, including the CQD series.
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Intended Use and Target Audience
The Masters of Defense Duane Dieter CQD knife was designed primarily for tactical and self-defense applications. Its robust construction, sharp blade, and ergonomic design make it well-suited for use by military personnel, law enforcement officers, and security professionals. The knife's additional features, such as the glass breaker and seatbelt cutter, also make it a valuable tool for emergency responders. The CQD is also popular among knife collectors and enthusiasts who appreciate its unique design and historical significance.
Variations and Models
The Duane Dieter CQD knife has been produced in several variations and models over the years. The original Masters of Defense CQD Mark I was the first model in the series. It featured a larger blade and handle compared to subsequent models. The CQD Mark II was a more compact version of the Mark I, designed for easier concealment. Blackhawk! has also produced its own versions of the CQD, with some variations in materials and features.
A Collector's Item
The Masters of Defense version is particularly relevant to collectors purchasing on the secondary market. The Masters of Defense Dieter CQD is considered a collectible item due to its historical significance and limited production. Original MOD CQD knives in good condition can command high prices on the secondary market. Collectors appreciate the craftsmanship and design of these knives, as well as their association with a respected brand and designer.
Specifications
- Brand: Master of Defense (MOD) / Blackhawk!
- Designer: Duane Dieter
- Type: Tactical Folder
- Production: Industrial
- Blade Material: 154CM stainless steel (MOD) / AUS-8 (Blackhawk!) with titanium nitriding
- Handle Material: Aeronautical aluminum with non-slip inserts / Reinforced nylon with non-slip grip panels and stainless steel liners
- Blade Length: 95mm (3.75 inches)
- Blade Thickness: 3.5mm
- Length Closed: 5-5/8 inches
- Total Length: 247mm (9.5 inches)
- Weight: 122g
- Closure: Button Lock with additional safety system
- Clip: Removable and reversible, in stainless steel
- Other Features: Belt-cutting and skull-crasher (glass breaker)
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