The newest of all of our products, the Model 70  CNC machined extractor marks a significant milestone in the continued development of products that will make your firearm even more dependable and cosmetically appealing. 
After several years of design and engineering we have successfully remade a classic part with state-of-the-art technology to tolerances that have never been achieved before.  Each part begins from a solid piece of 1/2" 416 stainless bar stock, or 4140 steel.  It is then completely machined on all surfaces and finished in our vibratory tumbling machines to eliminate burrs and remove the minimal tool marks left behind by the machining processes.  Once the part is fully finished, it is then sent off for heat treating, where it is then brought to a hardness of 35-37RC.  Once they are returned, they are fully inspected for tension, ensuring that each and every part is ready for your rifle without any hand-fitting, or gunsmithing.  To date, this is the only machined extractor available that  does not require hand-fitting. 

Extractor Removal and Replacement Instructions.pdf

Download latest version of Adobe Acrobat Reader

Why do I need a Machined Extractor??

     This is something many people ask, and it's very simple, dependability.  The factory Model 70 extractor is manufactured using a method of casting called "metal injected molding", or MIM.  This process is used as a method of cost savings and lacks the inherent grain structures that are present in steel or stainless steel in it's bar stock form.  Your extractor operates much like a spring, and like a spring it must be able to flex as it assembled onto your bolt, as well as being able to "snap" over the rim of the cartridge when single loading the rifle.  The MIM'd extractor does not have a single strand of material that runs from one end of the extractor to the other, called "grain".  This grain is what allows the extractor to flex back and forth without retaining a "memory", or in other words, bending, and staying bent.  If your extractor does not come back to it's original position every time, it will stop holding the cartridge properly during the feeding process, thus the statement of "controlled-round feed" would not be exactly accurate.  The MIM process also has the same problems that most all of the casting processes do, porosity, or what is referred to as tiny holes of air present inside the part.  These tiny holes of air cause weaknesses throughout the part, and can result in the breakage of the extractor in the field, especially when single loading cartridges into the chamber.  This can be especially important in dangerous game situations where the ability to load that last shot can mean the difference between life or death.

     All of our extractors are made 4.45" long, adding extra length for receivers that have had the ejection port area opened up for the longer cartridges.  These same extractors will work for Super Short, Short, or Long-Action Receivers simply because the added length of the extractor is retained within the rear receiver bridge.  It's a one size-fits all part that will cover everything from a 243 Winchester to the 300 Remington Ultra Mag.

     Now available for the Montana Rifle Company Model 99

1-888-257-3006