Description
The Tyrant CNC HALO Handstop is one of those small parts that punches way above its size. It gives your support hand a positive, repeatable reference point so you can index the same way shot after shot, whether you're pulling into your shoulder for recoil control or bracing off a barricade. It also serves as a forward stop to keep your fingers safely behind a hot muzzle device, which matters more than folks think on a short handguard. At roughly an ounce, you'll forget it's on the rifle until you need it.
What Sets the HALO Handstop Apart
What made the HALO stand out when it launched is that it mounts directly to both M-LOK and KeyMod rails with no separate adapter rail. That two-in-one design means you can move it between builds without buying extra hardware. The body is skeletonized aluminum with chamfered edges and machined knurling along the side, so it stays comfortable under the palm while still giving you enough texture to lock in and control side-to-side movement. It's finished in a durable Type III hardcoat anodize that shrugs off scuffs, grit, and wet range days.
Building Light With the HALO Handstop
Minimalist builders gravitate toward this one for good reason. At about 1-1/2 inches long and just under two-thirds of an inch wide, it barely occupies any rail real estate, which keeps your handguard open for lights, sling points, or just a clean look. It won't add noticeable weight to a lightweight setup and its compact footprint means fewer snag points on gear, slings, and barricades.
Installation is straightforward and takes only a few minutes. The included hardware and L-keys handle the whole job, so you can clamp it exactly where your natural hand position falls and get back to shooting. It's a simple, well-machined upgrade that quietly improves how the rifle handles.
Key Specifications
- Manufacturer: Tyrant CNC (Tyrant Designs)
- Model: HALO Handstop
- Manufacturer Part Number: TD772BLKM1
- UPC: 612789314881
- Color: Black
- Material: Aluminum
- Finish: Bead Blasted / Type III Hardcoat Anodize
- Weight: Approx. 0.9 oz
- Length: 1-1/2 in
- Width: 0.65 in
- Mounting: Direct M-LOK and KeyMod compatible
- Fits: AR-15 platform handguards/rails
- Made In: USA
What’s Included
- Tyrant CNC HALO Handstop (Black)
- M-LOK and KeyMod mounting fasteners
- (2) L-Keys
Frequently Asked Questions
Does the HALO Handstop fit both M-LOK and KeyMod rails?
Yes. The HALO mounts directly to both M-LOK and KeyMod rails using the included hardware, with no separate adapter needed. That flexibility lets you move it between rifles or run it on whichever handguard you already own.
How much does the Tyrant CNC HALO Handstop weigh?
It comes in right around 0.9 ounces thanks to its skeletonized aluminum design. That makes it a solid pick for lightweight builds where every ounce counts, since it adds control without noticeable weight.
Is the HALO Handstop hard to install?
Not at all. It installs in a few minutes using the included fasteners and L-keys, so no gunsmithing is required. Just position it where your support hand naturally lands and snug it down to your rail.
What can I use the HALO Handstop for besides a hand index?
It works as a forward stop to keep your support hand safely behind hot muzzle devices, and it doubles as a barricade stop when you're bracing off cover. The knurled side surface also helps with side-to-side control while driving the rifle.





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