Columbia River CRKT 3810 Matthew Lerch LCK Large Assisted Flipper Knife 3.621" Satin Drop Point Blade, Glass-Reinforced Nylon Handles, Liner Lock

Name: Columbia River CRKT 3810 Matthew Lerch LCK Large Assisted Flipper Knife 3.621 inch Satin Drop Point Blade, Glass-Reinforced Nylon Handles
Brand: CRKT Knives (Columbia River)
SKU: CR3810
Price: 45.99 USD
Availability: InStock
Rating: 4.778 (9 reviews)

* Pricing Info

$45.99

MSRP* : $66.99 | You Save* : $21.00 (31%)

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Description

CR3810: Matthew Lerch 3810 LCK Blackout Folding Knife

Columbia River (CRKT)

Blink and you'll miss it. The LCK Large is lightning fast and ready for anything. Surprisingly lightweight and easy to carry for its size, the LCK Large everyday carry folding knife is built around the Assisted Opening innovation for extremely fast deployment speeds. Pack some heat.

Designed by Matthew Lerch of Sussex, Wisconsin, the LCK is designed with Matthew's signature style: functional art. With a sleek, linear design, the formidable drop point stainless steel blade meets the glass-reinforced nylon handle in what looks like a nearly seamless transition. The grooves on the handle elevate the grip in rain, mud, and grease. Built with Assisted Opening, simply nudge the blade open part-way and the innovation activates, snapping it open at super high speed. The IKBS ball bearing pivot system makes for a smooth rotation and a liner lock keeps it solidly in place.

Ready, aim, LCK .

How Assisted Opening Works

It's held securely closed in your pocket, but initiate the deployment, and part-way through the rotation the blade swings open at an impressive speed for simple, powerful, one-handed opening."

Features

Assisted Opening Flipper deploys the blade fast
IKBS ball bearing pivot deploys the blade smoothly
Glass-reinforced nylon handle is durable and lightweight
Liner lock can be easily closed with one hand
Deep carry clip rides low in the pocket

Specifications

Blade Length: 3.621" (91.97 mm)
Handle Length: 4.530" (115.06 mm)
Overall Length: 8.188" (207.98 mm)
Blade Material: 8Cr13MoV Stainless Steel
Blade Thickness: 0.124" (3.15 mm)
Blade Style: Drop Point
Blade Finish: Satin
Handle Material: Glass-Reinforced Nylon
Locking Mechanism: Liner Lock
Pocket Clip: Tip-Up, Right Carry
Weight: 2.80 oz. (79.38 g)
Designer: Matthew Lerch
Assisted IKBS Pivot
Made in China

UPC Code: 794023381009

Related Categories

CRKT Knives (Columbia River), Columbia River (CRKT) Folding Knives Series, 8Cr Blade Steel, Zytel Handle Material, Folding Knives, Folding Knives Liner Locks, Matthew Lerch

Product Steel Type Badge: 8Cr Stainless Steel

8Cr Stainless Steel One of the most common budget stainless steels, it maintains a competitive combination of edge retention and toughness in its price range.

Zytel Handles A nylon polymer that is lightweight and extremely durable, Zytel can be shaped and textured to provide excellent grip.

Pocket Clip Includes a pocket clip for easy accessibility and a more secure carry.

(9 reviews)

4.8 out of 5 stars

5 star

4 star

3 star

2 star

1 star

Sc Sam
South Swamplandia

Jan 15, 2026

Pros: Blade Sharpness, Ease of Opening, Handle Feel, Overall Quality, Weight

Cons: None

Wonderful pocket blade, way better than expected

I love, love, love this knife! Lightweight, easy to operate, solid construction/fit/finish, sharp out of the box, good value for the money, and (most importantly) multi-manipulation handling capabilities for the widest range of work tasks possible. Boy does this folder deliver. No matter what the task I need it to do I can comfortably and safely find a holding position on the blade just like my primary workhorse EDCs, from regular grip, to pinching/choking up with the functional choil for fine slicing, to choking back on handle for some very light chopping, to reverse grip for pull-cutting, this thing is capable and comfortable. Not the best choice for side-to-side heavy prying action, but that's what fixed blades are for. All-day carrying is a breeze, with easy smooth deployment action. Highly recommended light-duty pocket folder.

Long Tme Collector
Stratford, CT

Sep 23, 2025

Pros: Blade Material, Blade Sharpness, Ease of Opening, Handle Feel, Handle Material, Lock Ease of Use, Overall Quality, Pocket Clip, Weight

Cons: Lock Type

Nice...

I was surprised to see this knife on sale so I bought two. On the good side... this knife is both small and large at the same time. Its slender and light weight but it feels like its more knife than it really is. Sharp out of the box, nice smooth action, well done for an economy knife. This is now in my EDC rotation. The down side - this kife comes with a liner lock and, maybe it's just me, but I don't like liner locks. The inner tab of the liner that moves to engauge the back of the blade doesn't make it to the middle of the blade. If you look carefully the liner tab is bearing on the left edge and it looks like its only 90% engauged. A button lock would be ideal, automatic opening would make iot perfect.

Mickael
Sète,

Sep 15, 2025

Pros: Blade Material, Blade Sharpness, Ease of Opening, Handle Feel, Handle Material, Lock Ease of Use, Lock Type, Overall Quality, Pocket Clip, Weight

Cons: None

tactical pocket knife

more of a knife for settling scores than an EDC, sharp and very piercing, good grip, great for 40 dollars

Read all 9 Reviews »

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