Description
Ultradyne built the Pegasus for folks who want a flatter, more controllable shooting experience out of their AR-10 or bolt gun. It runs a tanker-style body with four progressive 90-degree side ports that vent gas at staggered intervals, which spreads the recoil impulse out instead of hammering it back all at once. The result is a smoother push and a muzzle that stays put, letting you track your target and get right back on for the next shot.
What Sets the Pegasus Apart on a .308
The port geometry does double duty. Compensation ports up top steer gas away from your line of sight so you're not fighting a face full of blast, while the side ports handle the bulk of the recoil work. That combination is a big reason people running heavier-recoiling cartridges like 300 Win Mag or 7mm Rem Mag reach for this comp, since it's rated for a long list of standard .30 and 7mm caliber loads as long as your barrel wears 5/8-24 threads. Fair warning, aggressive comps like this one are loud, so keep good ear protection on the bench.
Built to Take a Beating
The Pegasus is 100% CNC machined in the USA from 416 stainless steel, then finished in an ultra-rugged salt bath nitride that shrugs off heat and holds up to serious round counts. At roughly 5.7 ounces with a 1.36-inch outer diameter, it's got some presence on the muzzle without being a boat anchor. The shrouded timing nut mounts cleanly and takes the guesswork out of getting the ports indexed correctly.
Pairs With the Dynamount System
If you run Ultradyne's Dynamount setup, the Pegasus is designed to work right alongside it. The indexing slots line up with the Dynamount front sight, giving you a barrel-mounted sighting option that stays truer to your point of aim than handguard-mounted irons. Even on its own, this is a serious upgrade for anyone chasing faster, more accurate follow-up shots.
Key Specifications
- Manufacturer: Ultradyne USA
- Model: Pegasus
- Manufacturer Part Number: UD10700
- UPC: 851019008309
- Caliber: .308 Win / 7.62x51mm NATO
- Muzzle Device Type: Tanker-Style Compensator
- Thread Pattern: 5/8-24 TPI
- Material: 416 Stainless Steel
- Finish: Salt Bath Nitride, Black
- Color: Black
- Weight: 5.7 oz
- Length: 2.43 in
- Outer Diameter: 1.36 in
- Mounting: Shrouded Timing Nut
- Country of Origin: USA
What’s Included
- Ultradyne Pegasus Compensator
- Shrouded timing nut
Frequently Asked Questions
What threads does the Pegasus compensator need?
The Pegasus uses a 5/8-24 TPI thread pattern, which is the standard for most .308 and 7.62 rifles. Just confirm your barrel is threaded 5/8-24 before ordering. The included shrouded timing nut handles the install and keeps the ports indexed correctly.
Will the Pegasus work on calibers other than .308?
Yes. This model is rated for a wide range of standard .30 and 7mm cartridges, including 300 Win Mag, 30-06, 7mm Rem Mag, and 6.8 SPC, as long as your barrel wears the 5/8-24 thread. Ultradyne has confirmed the .308 Pegasus works with most 300 Win Mag rifles that meet that thread spec.
Is the Pegasus loud compared to a flash hider?
It is. Any high-performance compensator that vents this much gas will bump up the concussion and noise at the shooter's position, and the Pegasus is no exception. That's the trade-off for the recoil reduction it delivers, so keep solid ear protection on and you'll be fine.
Does the Pegasus compensator work with the Dynamount sighting system?
It does. The Pegasus is designed to pair with Ultradyne's Dynamount front sight, with indexing slots that let you run a standard upright or 45-degree offset alignment. If you want a barrel-mounted sighting setup, this comp fits right into that system.







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