GUNSMITHING SERVICES: Winchester M70 Tactical Bolt Knob Installation
Having an oversized bolt knob installed on an M70 is a very popular way to personalize the rifle. This upgrade can be challenging as the handles are made from very hard/tough steel.
The traditional method of turning down the OEM handle in the lathe works in this case as the castings have shown to be very dense and tough. The challenge is getting a high quality surface finish due to the material condition. With automation, we've been successful in solving this.
Our work holding allows for multiple point contact for increased rigidity. The additional benefit is the ability to "dial" off the approximate center so that the new knob blends elegantly to the handle's original profile.
LRI tac knob installs start by completely eliminating the factory Remington knob. From here the end is milled flat, drilled and finally tapped for a heat treated thread insert. Our inserts are grade 12 socket head set screws. We turn and machine one side for the handle and leave the "big side" alone so that knobs direct mount. They also feature an allen hex socket for ease of assembly.
It's a proven process as we've installed thousands of these for clients. This work is performed in a vertical mill using a vice that completely captures the bolt handle. The improved work holding translates to clean surface finishes with features precisely located.
When completed, the LRI tac knob presents as a robust, simple, and clean way to personalize your rifle.
NOTES: This a service. The price of the knob is not included. LRI is happy to install a knob made by another manufacturer so long as it has a 5/16-24 threaded socket. (most do as this is the most popular size)
LRI Tac Knobs can be found here:
Remington M700's have evolved over the years. Certain legacy versions use a handle design slightly different from the current design. These older handles have a very narrow transition to the bolt knob and lack the material needed for our inserts to install. If your bolt is of this lineage the handle will have to be replaced with the current version in order for us to install our knob. We carry these as a normal stock item and will consult with you well in advance of performing any work.
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