Description
MDT stepped into the precision action game by way of Lone Peak Arms, and the Fuzion is the mainline result of that move. This particular version wears a magnum bolt face and a black nitrided finish, machined from pre-hardened 416R stainless steel so it stays dimensionally stable even when you're stacking rounds through a long season. Everything sits on a Remington 700 footprint, which means it drops into the massive world of aftermarket chassis, bottom metal, triggers, and pre-fit barrels you already know and trust.
What Sets the Fuzion Magnum Apart
The details are where this action earns its keep. You get a one-piece 4340 chrome-moly bolt with a nitride finish, EDM-cut raceways, and a mini M-16 style extractor that yanks fired brass out clean every time. A lightweight firing pin keeps lock time short and ignition consistent, and the fast bolt throw trims your cycle time so you spend less time working the handle and more time settled behind the glass. The magnum bolt face opens the door to the belted and beltless magnum cartridges a lot of long-range folks are chambering these days.
Built-In Rigidity on the Fuzion Action
Instead of bolting on parts that can shift or work loose, MDT machines the recoil lug and a 20 MOA Picatinny rail straight into the receiver. That gives you one rigid, secured platform with fewer failure points, and it means your optic isn't riding on a separate base that needs constant torque checks. Combined with the 416R stainless and nitride treatment, it's the kind of durability recipe custom builders have leaned on for years.
Keep in mind this is a barreled-action receiver kit, not a complete rifle. You'll still need a barrel, chassis or stock, bottom metal, trigger, and rings to finish the build. For anyone putting together a serious precision rig from the ground up, the Fuzion gives you a proven, competition-ready heart to build around.
Key Specifications
- Manufacturer: MDT (Lone Peak Arms)
- Model: Fuzion
- Manufacturer Part Number: 117083SBN
- UPC: 990482732998
- Action Type: Bolt Action
- Bolt Face: Magnum
- Receiver Material: Pre-Hardened 416R Stainless Steel
- Finish: Black Nitride
- Bolt: One-Piece 4340 Chrome-Moly, Nitride Finish
- Extractor: Mini M-16 Style
- Optics Rail: Integral 20 MOA Picatinny
- Recoil Lug: Integral, Machined Into Receiver
- Footprint: Remington 700
- Magazine Cut: Wyatt BDL / AICS-Pattern Compatible
What’s Included
- LPA Fuzion 416R stainless steel receiver
- LPA one-piece chrome-moly bolt
- Trigger pins
- All required installation hardware
Frequently Asked Questions
Is the MDT Fuzion a complete rifle or just the action?
This is the action itself, not a finished rifle. You'll get the 416R stainless receiver, the chrome-moly bolt, trigger pins, and the install hardware. To complete a build you'll still need a barrel, a chassis or stock, bottom metal, a trigger, and scope rings.
What does the magnum bolt face on the Fuzion let me chamber?
The magnum bolt face is sized for larger-diameter magnum case heads, which covers a wide range of belted and beltless magnum cartridges popular with long-range and hunting builds. Pairing it with the right pre-fit barrel is what determines your final chambering. Since it rides on a Remington 700 footprint, barrel options are plentiful.
Will the Fuzion action drop into my Remington 700 chassis or stock?
Yes. The Fuzion is built on the Remington 700 footprint, so it's compatible with the huge range of 700-pattern chassis, stocks, bottom metal, and triggers on the market. That's one of the big reasons builders like starting with this action.
Why is the recoil lug and scope rail built into the Fuzion receiver?
Machining the recoil lug and 20 MOA Picatinny rail directly into the receiver removes separate parts that can shift or loosen under recoil. The result is a stiffer, more repeatable platform and one less thing to keep torqued down. It also keeps your optic locked to the action instead of a bolt-on base.




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