Description
The MDT Fuzion is the action that used to carry the Lone Peak Arms name, now built under the MDT banner after the company brought Lone Peak in house. This particular model is the short action set up for a .308 bolt face, machined from pre-hardened 416R stainless steel and finished in black nitride. If you have been shopping custom actions for a precision or hunting build, this is the receiver that shows up on a lot of match rifles for good reason.
What makes the Fuzion worth building around is the way it holds two things that usually fight each other: tight tolerances and long-term durability. The 416R stainless stays dimensionally stable through high round counts, so the action does not open up and get sloppy after a hard season. The receiver raceways are cut with wire EDM for precise fit, and the one-piece fluted 4340 chrome-moly bolt runs smooth right out of the box.
How the MDT Fuzion Cycles
The 75-degree bolt throw shortens your lift and gives you more knuckle clearance under a big scope, which keeps you on target for faster follow-ups. Inside, a mini M-16 style extractor and plunger ejector handle brass cleanly, and a lightweight firing pin with a .060 inch tip trims lock time for consistent ignition. It is the kind of feel builders describe as buttery, and it is a big part of why the Lone Peak name earned the reputation it did.
Building on the MDT Fuzion Action
This is a Remington 700 footprint action, so it drops into the huge ecosystem of stocks, chassis, triggers, and bottom metal already out there. The short action mag well is cut for AW-style magazines, and it wears an integral 20 MOA Picatinny rail and integral recoil lug machined right into the receiver, so there are no separate pieces to loosen or shift. A side bolt release keeps takedown and cleaning simple. Keep in mind this is a barreled-action foundation, so you will still need a barrel, trigger, and a stock or chassis to finish the rifle.
Key Specifications
- Manufacturer: MDT (Lone Peak Arms)
- Model: Fuzion
- Manufacturer Part Number: 117080SBN
- UPC: 990482732981
- Caliber / Bolt Face: .308 Winchester
- Action Type: Bolt Action, Short Action
- Footprint: Remington 700
- Receiver Material: Pre-hardened 416R Stainless Steel
- Bolt Material: One-piece fluted 4340 chrome-moly
- Finish: Black Nitride
- Bolt Throw: 75 degrees
- Optics Rail: Integral 20 MOA Picatinny
- Magazine Cut: AW-style (short action)
- Extractor: Mini M-16 style with plunger ejector
- Firing Pin: Lightweight, .060 inch diameter
- Weight (with bolt): Approx. 31.5 oz
What’s Included
- Fuzion stainless steel receiver
- Chrome-moly bolt assembly
- Trigger pins
- Required installation hardware
Frequently Asked Questions
Is the MDT Fuzion a complete rifle or just the action?
This is the action, not a finished rifle. You get the 416R stainless receiver, the one-piece 4340 bolt, trigger pins, and the mounting hardware. You will still need to add a barrel, trigger, and a stock or chassis to complete your build.
Will the MDT Fuzion 308 fit my Remington 700 chassis and parts?
Yes. The Fuzion uses the Remington 700 footprint, so it drops into the wide range of 700-pattern stocks, chassis systems, triggers, and bottom metal on the market. That compatibility is one of the main reasons builders reach for it.
What magazines does the short action Fuzion use?
The short action mag well is cut for AW-style magazines. That makes it easy to run common AICS-pattern detachable magazines in a chassis or DBM setup for your .308 or similar short-action cartridge.
Why does the Fuzion use a 75-degree bolt throw?
The 75-degree throw shortens the bolt lift compared to a standard 90-degree action. That means quicker cycling and more clearance between the bolt handle and a large scope, which helps you stay on target for follow-up shots.





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