Hunter in camouflage gear with a rifle in a snowy forest

Rifle with scope attached to a tree branch in a forest setting

Person in camouflage gear holding a rifle in a forest setting

Hunter in camouflage with rifle and binoculars in a natural setting

Camouflage rifle stock with 'Sonoran Camo' text on a white background

Camouflage rifle stock with 'Timber Camo' label on a white background

Black plastic component with 'Molded in Black' text on a white background

Grayboe

Halo

one stock. multiple rifles.

Engineered for shooters who demand precision, the Grayboe Halo delivers exceptional stability, comfort, and control whether you're behind the bench or taking the shot in the field.

stock only from

$219.00

$219.00 ~~$169.00~~

Sold out

Color Finish:

Add to cart

Ships in 72 hrs or less Mon - Fri.
Lifetime Warranty

Secured & trusted checkout with:

flagstaff product page hero image w text (4).png

Dialed for Distance

The Halo is molded from impact-resistant polymer, weatherproof and tough. Refined ergonomics and modern long-range features, gives hunters a rugged, confident platform for stretching shots in any terrain

plug and play images for product page.png

plug and play system

Universal Mini Chassis compatible. Shoot multiple brands of rifles and calibers out of the same stock. Short or long action, Remington or Howa, it doesn't matter. They all fit the stock the same. If we have a Mini Chassis for it, it fits.

features

Universal Mini Chassis Compatible

Bolt in multiple rifles and calibers using the Universal Mini Chassis (UMC) system into the Halo stock.

Takes AICS magazines

Fits all AICS magazines, no bottom metal required. Mags click right into the belly of the stock. Use standard short AICS mags and 3.715" or 3.850" (depending on what model UMC you have) length AICS mags for long actions calibers.

MLOK Attachments

MLOK attachment capability at the 3, 6 and 9 o'clock positions on the forend. 2 MLOK slots on the bottom of the buttstock.

Vertical Grip and Finger Groove

Comfortable vertical grip with palm swell and trigger finger groove. Keeping your trigger hand in its most natural relaxed state with consistent placement shot after shot.

what you get section of product pages.png

mlok slots on forend & buttstock

with 2 QD inserts for rifle sling shoulder carry

what you get section of product pages (1).png

muzzle rise mitigation recoil pad

(LOP & Cheek Riser adjustment coming soon!)

what you get section of product pages (2).png

Vertical grip

With palm swell & trigger finger rest

What you get:

Mag lever options.

Most Universal Mini Chassis models give you the option to choose between a polymer hunting style mag release lever or an adjustable paddle style lever with .080" of vertical adjustment.

*Hunter lever not available on the Tikka, Ruger, Savage and Howa/Weatherby UMC models.

Rifle Installation

How to easily bolt multiple rifles to the Flagstaff stock using the Universal Mini Chassis.

specifications

Overall Weight & Length

The Halo with UMC installed weighs 3lbs 3 ounces. Overall Length is 33".

Materials

Stock is made out of impact resistant polymer. (UMC) Universal Mini Chassis is T6 6061 billet aluminum, hard anodized matte black or cerakote.

barrel contours

Universal barrel channel that fits all barrel contours up to and including Proof Research Carbon Sendero.

Forend tip diameter measures .925" at 11.25" down the forend from the face of a Rem 700 short action.

grip angle

Vertical grip with palm swell.

Forend

Length of the forend is 12.5" from face of a short action Rem 700. 4 slotted MLOK plates on each side of the stocks forend.

2 MLOK slots on the bottom of the forend for bipod attachment.

Length of PUll

13.75" minimum LOP. (adjustable 1/4" spacers coming soon to extend the LOP!)

Frequently asked questions

How long does shipping take?

Items ship in 48 hours or less, Mon - Fri.

Will my Universal Mini Chassis be bolted to the stock when I receive it?

Most Universal Mini Chassis (UMC) will be bolted to the stock when it ships out. Some, like the Ruger American and Mossberg Patriot, won't be as the rifle must be bolted onto the UMC first and the trigger guard pinned into place before bolting to the stock.

Do you ship internationally?

Yes we do, you will need to register with our exporter here, https://easyexport-web.azurefd.net/signup-purchaser before we can ship your order.

How do i purchase a Universal Mini Chassis (UMC) by itself, to use on another rifle I own in the Halo stock?

You can purchase additional UMC's on the Universal Mini Chassis product page and add them to your cart before checkout.

I have a Ruger American .308 and a Remington 700 .7PRC rifle, I can really shoot both rifles in the same stock?

That is correct. You get a UMC for your Ruger American .308 (short action length) and a UMC for your Remington 700 7PRC (long action length) and they both will plug and play in the Halo stock.

Will my rifle hold zero after i sight it in and remove the UMC with the rifle on it out of the stock?

Yes it will. Once you have sighted in your rifle on the UMC in the stock. You can remove your rifle keeping the UMC on it and it will hold zero.

What are the torque specs?

We recommend 45 in lbs bolting the UMC to the stock. Anywhere from 45-65 in lbs bolting your rifle to the UMC.

Do i use my factory action screws to bolt my rifle to the UMC?

No, we will send you a new set of action screws in the box that must be used to bolt your rifle to the UMC.

Do you make UMC's and Halo stocks in left hand?

Unfortunately we do not at this time. We hope to offer left handed UMC compatible stocks in late 2026.