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Griffin Armament
The Griffin Armament GP5 5.56 direct thread suppressor is a lightweight, general-purpose sound moderator built for shooters who want effective noise reduction without breaking the bank or weighing down their rifle. Constructed entirely from 17-4 stainless steel and finished in Cerakote, the GP5 delivers durability and corrosion resistance in a compact package that handles everything from subsonic target loads to full-power 5.56 NATO rounds. It's an excellent choice for precision rifle hunters, 3-gun competitors, and shooters simply looking to protect their hearing on the range.
What makes the GP5 stand out in the direct-thread suppressor market is Griffin's patented baffle technology, which keeps sound signature down to 31 dB attenuation while maintaining the lightweight, affordable approach the GP series is known for. The suppressor comes pre-drilled with a .125-inch hole, allowing you to pin it to a barrel and create a permanent assembly (one NFA stamp)—a smart move if you're building a short-barreled upper or want a no-fuss configuration. At just 12.5 ounces and 6.25 inches in overall length, it won't throw off your rifle's balance or get in the way of optics and rail systems.
The 1/2x28 TPI direct-thread attachment is the industry standard for 5.56 platforms, so installation is straightforward on most AR-15 uppers and modern 5.56 rifles. Wrench flats on both the front and rear housing give you options for disassembly and maintenance, and the suppressor is rated for full-auto fire, so it'll handle whatever you throw at it—from precision bolt-action builds to SBR upper receivers. If you're after genuine noise reduction without the weight penalty or the price tag of premium alternatives, the GP5 is a no-compromise option.
| Caliber/Rating | .22 caliber aperture, rated up to .220 Swift; suitable for 5.56 NATO |
| Attachment | 1/2x28 TPI direct thread |
| Overall Length | 6.25 inches |
| Length Added vs. A2 Compensator | 4.8 inches |
| Outer Diameter | 1.5 inches |
| Weight | 12.5 ounces |
| Materials | 17-4 stainless steel (high-strength, high-temperature, corrosion-resistant) |
| Finish | Cerakote |
| Sound Attenuation | 31 dB |
| Pinning Hole | .125 inch (pre-drilled) |
| Minimum Barrel Length (if pinned) | 10.5 inches |
| Auto-Rated | Yes, full-auto rated |
Yes. The GP5 uses a 1/2x28 TPI direct-thread attachment, which is the standard for 5.56 NATO barrels. Installation is straightforward—simply thread it onto your muzzle.
Yes. The suppressor comes pre-drilled with a .125-inch hole for pinning, allowing you to create a permanent assembly with a single NFA stamp. The minimum barrel length for pinning is 10.5 inches.
Yes, the GP5 is full-auto rated, so it will handle any shooting platform from precision bolt-action rifles to short-barreled rifle uppers and select-fire weapons.
The GP5 delivers 31 dB of sound attenuation, thanks to Griffin's patented baffle technology. This provides meaningful hearing protection and is typical for a direct-thread .22-caliber suppressor in this class.
Griffin Armament
The Griffin Armament GP5 5.56 direct thread suppressor is a lightweight, general-purpose sound moderator built for shooters who want effective noise reduction without breaking the bank or weighing down their rifle. Constructed entirely from 17-4 stainless steel and finished in Cerakote, the GP5 delivers durability and corrosion resistance in a compact package that handles everything from subsonic target loads to full-power 5.56 NATO rounds. It's an excellent choice for precision rifle hunters, 3-gun competitors, and shooters simply looking to protect their hearing on the range.
What makes the GP5 stand out in the direct-thread suppressor market is Griffin's patented baffle technology, which keeps sound signature down to 31 dB attenuation while maintaining the lightweight, affordable approach the GP series is known for. The suppressor comes pre-drilled with a .125-inch hole, allowing you to pin it to a barrel and create a permanent assembly (one NFA stamp)—a smart move if you're building a short-barreled upper or want a no-fuss configuration. At just 12.5 ounces and 6.25 inches in overall length, it won't throw off your rifle's balance or get in the way of optics and rail systems.
The 1/2x28 TPI direct-thread attachment is the industry standard for 5.56 platforms, so installation is straightforward on most AR-15 uppers and modern 5.56 rifles. Wrench flats on both the front and rear housing give you options for disassembly and maintenance, and the suppressor is rated for full-auto fire, so it'll handle whatever you throw at it—from precision bolt-action builds to SBR upper receivers. If you're after genuine noise reduction without the weight penalty or the price tag of premium alternatives, the GP5 is a no-compromise option.
| Caliber/Rating | .22 caliber aperture, rated up to .220 Swift; suitable for 5.56 NATO |
| Attachment | 1/2x28 TPI direct thread |
| Overall Length | 6.25 inches |
| Length Added vs. A2 Compensator | 4.8 inches |
| Outer Diameter | 1.5 inches |
| Weight | 12.5 ounces |
| Materials | 17-4 stainless steel (high-strength, high-temperature, corrosion-resistant) |
| Finish | Cerakote |
| Sound Attenuation | 31 dB |
| Pinning Hole | .125 inch (pre-drilled) |
| Minimum Barrel Length (if pinned) | 10.5 inches |
| Auto-Rated | Yes, full-auto rated |
Yes. The GP5 uses a 1/2x28 TPI direct-thread attachment, which is the standard for 5.56 NATO barrels. Installation is straightforward—simply thread it onto your muzzle.
Yes. The suppressor comes pre-drilled with a .125-inch hole for pinning, allowing you to create a permanent assembly with a single NFA stamp. The minimum barrel length for pinning is 10.5 inches.
Yes, the GP5 is full-auto rated, so it will handle any shooting platform from precision bolt-action rifles to short-barreled rifle uppers and select-fire weapons.
The GP5 delivers 31 dB of sound attenuation, thanks to Griffin's patented baffle technology. This provides meaningful hearing protection and is typical for a direct-thread .22-caliber suppressor in this class.
