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Grayboe manufactures precision rifle stocks and chassis systems designed around one core idea: hunters and precision shooters shouldn't be locked into one rifle action or caliber. Their Universal Mini Chassis (UMC) system solves this by creating a standardized bedding platform that fits multiple rifle actions—Savage 110, Remington 700 clones, [Tikka](/handbook/national-t...
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Full description and what we offer
Grayboe manufactures precision rifle stocks and chassis systems designed around one core idea: hunters and precision shooters shouldn't be locked into one rifle action or caliber. Their Universal Mini Chassis (UMC) system solves this by creating a standardized bedding platform that fits multiple rifle actions—Savage 110, Remington 700 clones, Tikka T3/T3X, Howa 1500, Weatherby Vanguard, Mossberg Patriot, and Ruger American—letting you swap rifles without buying new stocks.
The UMC is a 14-ounce aluminum bedding block made from T6 6061 billet stock, coated in Cerakote black or hard coat anodized Type III. Your rifle bolts to the UMC, then the whole assembly slides into any Grayboe stock that uses the UMC inlet.
Key features: - Accepts standard AICS magazines (no additional bottom metal required) - Optional adjustable magazine release lever with .080" height adjustment - Quick changeout via two screws - Available for short action and long action configurations - Ships in 48 hours or less
Grayboe's modular approach means their stocks work across multiple platforms:
| Stock Model | Purpose | Status |
|---|---|---|
| Halo | Rugged, modular platform for precision shooters | New |
| The Core | F-Class shooting with balance and weight efficiency | New |
| Flagstaff | UMC-compatible hunting stock | Available |
| Phoenix 2 | Available for Savage 110, Tikka, Rem 700/clones | Available |
| Trekker | Mountain hunting platform | Available |
| Eagle / Eagle Pro | Competition and hunting variants | Available |
| Renegade 2 | Coming soon |
Grayboe stocks are the precision platform of choice for Scout Precision Rifles, a Montana-based custom rifle builder founded by a former Marine Corps Scout Sniper. Scout's rifles are guaranteed to shoot ½ MOA or better and are custom-built for mountain hunting using ultra-light materials like titanium-structured barrels paired with Grayboe stocks.
Beyond stocks, Grayboe offers: - M5 DBM – Detachable box magazines for M5 platforms - M5 Hunter DBM – Hunter-specific variant - M5 Floorplate – Standard floorplate option - Savage AICS DBM – Savage-specific magazine system - Recoil pads, rails, attachments, and hardware - Limited camo drop collaborations
The Grayboe Core stock is purpose-built for F-Class competition, particularly F-TR (Tactical Rifle) where equipment rules are strict. The stock delivers the precision, ergonomics, and weight efficiency competitive shooters need without sacrificing bedding consistency.
Grayboe's Universal Mini Chassis means you're not married to one rifle. Build a .308 Winchester hunting rig, then drop in a short-action 6.5 Creedmoor for antelope—all in the same stock.
In an industry where precision rifles are often one-rifle-one-stock affairs, Grayboe's modular approach gives hunters and shooters flexibility. Combined with Scout Precision Rifles and other builders using their platforms, Grayboe stocks represent a practical solution to the real problem: managing multiple calibers and actions without buying multiple stocks.