Description
Griffin's Gate-LOK Flash Comp is one of those parts that does double duty. Run it bare and it's a legitimate flash suppressor for your .30 caliber rifle. Thread on a Griffin Gate-LOK silencer or the QD Blast Shield and it becomes a mounting interface that locks up tight and returns to zero every time you swap cans. It shares the same performance geometry as Griffin's proven 5.56mm devices, just scaled up with a 5/8×24 thread pitch and an integral over-travel stop so it seats exactly where it should.
What Makes the Gate-LOK Flash Comp Worth a Look
The whole thing is CNC machined and outside-diameter ground from 17-4 precipitation hardened stainless steel, so it shrugs off heat, corrosion, and the kind of abuse a suppressor host puts on a muzzle device. At 2.77 inches long, .863 inches in diameter, and right around 3.2 ounces, it stays compact and light without giving up strength. A shim set comes in the box for clean timing and alignment, which takes the guesswork out of getting it clocked correctly.
Built With the Gunsmith in Mind
If you're planning a pin-and-weld, this one makes life easy. There's a pre-drilled hole built in specifically to aid pinning and welding, so your gunsmith just threads it on, presses the pin flush, and welds. No fussing with drilling a fresh hole or fighting alignment. The 5/8×24 threads are the industry standard for 7.62mm, so it drops onto most .30 caliber barrels without hunting for an oddball pitch.
Pairing It With Your Griffin Silencer
The Gate-LOK Flash Comp is designed to interface directly with Griffin's 30SD and M4SD series silencers along with the QD Blast Shield. That taper-locked mount is the real draw here, giving you solid, repeatable point-of-impact behavior when you take the can on and off. Whether you're building a dedicated suppressor host or just want a quality flash comp now with a clear upgrade path later, this is a smart foundation to build on.
Key Specifications
- Manufacturer: Griffin Armament
- Manufacturer Part Number: XHP762FCM
- Model: Gate-LOK
- UPC: 791154081549
- Caliber: .30 Cal / 7.62mm
- Thread Pattern: 5/8×24 tpi
- Material: 17-4 PH Stainless Steel
- Finish: Black Oxide
- Overall Length: 2.77 in
- Diameter: .863 in
- Weight: 3.2 oz
- Device Type: Flash Comp / Suppressor Mount
- Silencer Compatibility: Griffin 30SD, M4SD, Gate-LOK series & QD Blast Shield
What’s Included
- Griffin Gate-LOK Flash Comp (XHP762FCM)
- Shim set for timing and alignment
Frequently Asked Questions
What silencers does the Gate-LOK Flash Comp work with?
It's built to interface with Griffin's Gate-LOK silencers, including the 30SD and M4SD series, as well as the QD Blast Shield. The taper mount gives you a solid lockup and repeatable point-of-impact when you swap cans. If you're running a Griffin .30 caliber system, this is a native mounting option.
Will the 5/8×24 threads fit my 7.62mm rifle?
5/8×24 is the industry standard thread pitch for .30 caliber and 7.62mm barrels, so this comp fits most 7.62mm firearms on the market. Just confirm your barrel is threaded 5/8×24 before ordering. It's the same pitch used on the vast majority of AR-10 and .308 platforms.
Can I pin and weld the Gate-LOK Flash Comp?
Yes, and it's designed to make that job simple. There's a pre-drilled hole built in specifically to aid pinning and welding, so a gunsmith just threads it on, presses the pin flush, and welds. That's handy if you want a permanent muzzle device on a shorter barrel.
Does the Gate-LOK Flash Comp work as a standalone flash suppressor?
It does. Run it bare and it functions as a flash comp using the same proven geometry as Griffin's 5.56mm devices, scaled up for .30 caliber. You get flash reduction now with the option to add a Griffin silencer or QD Blast Shield down the road.





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