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Grayboe HALO UMC Fixed Stock Timber Sponge

UPC: 615678065864

$208.05

7 in stock

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Description

The Grayboe HALO fixed stock is engineered for shooters who want a purpose-built platform without compromise. Weighing just 3 lbs 3 oz with the UMC installed and measuring 33 inches overall, it strikes the balance between stability and packability that works whether you're glassing from a ridge or setting up for a competition stage.

What makes the HALO stand out is its compatibility with the Universal Mini Chassis system. Instead of buying a new stock for every rifle action you own, you grab the appropriate UMC for your action type and slot it in. That means a Rem 700 short action and a Howa long action can live in the same stock by just swapping the chassis. Your zero follows the UMC, not the stock, so moving rifles between stocks maintains your point of aim without re-zeroing. The aluminum UMC is machined from T6 6061 billet and hard anodized for durability.

Magazine Compatibility and Magazine Well Design

The HALO accepts standard AICS magazines with zero gunsmithing required. Short action setups run conventional short AICS mags, while long actions feed from 3.715 inch or 3.850 inch variants depending on your UMC model. No bottom metal needed. The forend stretches 12.5 inches with a muzzle tip diameter of .925 inch, accommodating everything from hunting contours to the heavier Proof Research Carbon Sendero barrels.

Ergonomics and Accessory Mounting

Your trigger hand sits in a vertical grip with a palm swell and trigger finger groove that keeps you consistent shot to shot. Sling attachment points are integrated via QD inserts, while M-LOK slots run along the forend at 3, 6, and 9 o'clock positions plus two additional slots on the buttstock for rails, lights, or other gear. The integrated recoil pad handles the thump without being intrusive. The Timber Sponge finish breaks up your outline in brush and timber while maintaining that professional appearance on the range.

Key Specifications

  • Manufacturer: Grayboe
  • Model: HALO UMC Compatible
  • Manufacturer Part Number: HL1-UMC-TIM
  • UPC: 615678065864
  • Finish: Timber Sponge
  • Stock Type: Fixed
  • Material: Impact-resistant polymer
  • Chassis Material: T6 6061 billet aluminum, hard anodized
  • Weight with UMC: 3 lbs 3 oz
  • Overall Length: 33 inches
  • Forend Length: 12.5 inches from short action face
  • Forend Tip Diameter: .925 inch
  • Magazine Compatibility: AICS (short and long action)
  • Barrel Channel: Universal, fits up to Proof Research Carbon Sendero
  • Handedness: Right-hand

What’s Included

  • HALO fixed stock body (polymer)
  • Action screws for UMC installation

Frequently Asked Questions

Can I really swap multiple rifles into the same HALO stock without changing zero?

Yes. The key is that your rifle bolts to the UMC, not directly to the stock. Once sighted in, you can remove your barreled action with the UMC attached and install a different rifle on a different UMC, and your zero stays put on that first UMC. So you can have a .308 short action and a 7PRC long action, each with their own UMC, both running through the same HALO stock.

What UMC models work with the Timber Sponge HALO?

The HALO is compatible with all Universal Mini Chassis models available from Grayboe, including Remington 700, Ruger American, Howa, Savage, Tikka, and Mossberg Patriot inlets. Each rifle action needs its specific UMC, which you purchase separately based on your rifle platform and action length.

Do I need bottom metal or a gunsmith to use AICS magazines?

No. The HALO's integrated magazine well accepts standard AICS mags directly. Short action setups use standard short AICS magazines, while long actions use 3.715 or 3.850 inch variants depending on which UMC you have. Everything clicks in from the bottom with no modifications required.

How rigid is this stock for precision shooting?

The impact-resistant polymer paired with the T6 billet aluminum UMC creates a stable, consistent platform. The UMC bolts solid to the stock while your action bolts solid to the UMC, eliminating play at multiple contact points. Combined with the universal barrel channel that accommodates everything from thin hunting barrels to stiff competition contours, you get the kind of rigidity that translates to repeatable accuracy.

Additional information

UPC

615678065864

Manufacturer

Manufacturer Part Number

HL1-UMC-TIM

Color

Timber Sponge

Style

Fixed

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