Sign In

Forgot your password?

Shipping Policy

Any customers with separate shipping and billing addresses are subject to follow up contact. If no contact can be made, your order will be cancelled. Please understand that this policy is to protect our customers from fraud and theft.

Shipping costs are calculated automatically when you checkout. Orders to P.O. Boxes or military addresses require shipping via USPS.

Orders placed by 3:00pm EST will be shipped the same day. All orders shipped USPS (including Express) may take an additional business day to process and ship. We strongly recommend shipping UPS if you need guaranteed delivery by a certain date.

For our international customers, you must call or email after ordering to arrange for duties/customs and declarations before we will ship your order. USPS Express International shipments with declarations greater than $200, incur an additional $15.00 fee for postage/insurance.

Disclaimer

By placing an order the buyer represents that he or she is of legal age and that the products ordered will be used in a lawful manner. We assume no responsibility for any harm or injury resulting from the sale, trade, use or handling of any product purchased from us. It is the responsibility of the buyer, not the seller, to ascertain and obey all applicable local, state, federal and international laws in regard to the possession, and or use, of any item purchased. We are unable to provide refunds in the event that the package that you have ordered was seized by customs or other agencies. Consult your local and state laws before ordering if you are in doubt.

Added to Cart

proceed to checkout
View Cart Continue Shopping
0CART
Recently Added Knives by Maker Advanced Search Sell Your Knives
Consignment Program Packing Your Knives
Shop by Category
Folding Knives Fixed Blade Knives Automatic Knives Manufactured Knives Kitchen Knives American Bladesmith Society Knives

Home Products Quantum Ursus "Blue Machine" RIP Knives - Chromax PM - MRBS

Quantum Ursus "Blue Machine" RIP Knives - Chromax PM - MRBS

by Shirogorov, Rip Knives (Danny Yard)

SKU 1116324

Date Added 08/08/2025

# Available This product is out of stock

Original price $1,395.00

Price $1,345.00

add to wishlist

Overview

Shirogorov Knives / Rip Knives Quantum “Blue Machine” – Cromax PM Blade – MRBS

3.74″ Stonewashed Cromax PM Blade w/ Jimping on Spine

8.86″ Overall Length

Weighs 4.1 oz

Runs on MRBS (Multi Row Bearing System)

Blackened Hardware & Pivot Screws

Titanium Frame-Lock Handle Scales w/ "Blue Machine" Finish done by Rip Knives

Milled Pockets on inside of handle scales for weight reduction

Steel Insert in Lock Bar

Blackened Titanium Stand Off

Lanyard Hole on Presentation Scale

Tip Up Pocket Clip w/ 3D Machined "Blue Machine" Finish done by Rip Knives

Titanium Pocket Clip attached w/ Hidden Hardware

 

Comes with original box, cloth and papers. New condition. 

Product Details

Blade Length 4

Overall Length 8.875

Closed Length 5.125

Weight (oz) 4.1

Source Previously owned

Additional Specs

Knife Type Tip Up Carry, Tip Up Clip

Blade Material Other

Blade Details Upswept/Trailing

Handle Material Metallic

Other Details Tactical

About the Maker

Shirogorov
Shirogorov

"Today we live in the age of high technologies, which not only provide an opportunity for a qualitatively different processing of materials, but also bring such knife requirements as reliability, convenience, practicality, quality of cutting to a new level. The Shirogorov Brothers Workshop honors the traditions and experience of leading knife manufacturers and at the same time closely monitors the development trends and needs of the knife market, offering users original original folding knives made in Russia. We are not afraid to experiment and develop, we know and love our job. Our knives are outstanding designs and unity of the concept, modern materials and advanced technologies, well-thought-out ergonomics and full-fledged functionality. In our model range, everyone can find a suitable option among the variety of complete sets that meet the most diverse requirements. That is why the knives produced by our Workshop are deservedly widely popular among not only ordinary users in Russia and abroad, but also sophisticated connoisseurs and demanding collectors, and tens of thousands of owners have been able to evaluate the high quality and convenience of our knives."

See Knives from This Maker View Website
Rip Knives (Danny Yard)

Los Angeles born artist and knife maker Danny Yard began his knife journey in 2002. Starting with a welder and a pile of steel and wood scraps he quickly turned ideas into reality making anything from sculptures to furniture. After many years of drive and determination to learn everything about blending steel and wood into visually stunning yet functional art, eventually his interests morphed into making knives. Starting with the most basic bush craft style knife, Danny learned to make tactical blades, fighters, every-day-carry, even the most challenging folding knives. None of those knives satisfied his artistic needs like making a curvy, provocative, radical, exotic, multi-textured, yet fully functional food prepping tool. Danny's chef knives are hard to look away from and feel like anarchy in the hand. They are made with a mindset of being impossible to replicate by anyone but it's creator. Using stainless, high carbon, San Mai and Damascus steels along with unique wood handles, there isn't a culinary territory not covered.

See Knives from This Maker