Upgrade your 24mm-threaded AK into a modern suppressor-ready rifle with the Griffin Armament Suppressor Mount Thread Adapter 5/8"x24 – Melonite QPQ Black, 24MM5824A (UPC: 791154082256). Designed specifically for 24mm x 1.5mm AK front sight base threads, this premium adapter converts your barrel to the industry-standard 5/8x24 so you can run .30-cal muzzle brakes, flash hiders, and suppressor mounts without cutting or rethreading the barrel. Shooting Surplus+1
Convert 24x1.5mm AK Threads to 5/8x24
Many classic and modern AK variants use 24x1.5mm RH muzzle threads, which severely limits your muzzle device choices. The Griffin 24MM5824A fixes that instantly: Black Ankle Munitions+2Canoe Creek Armory+2
With 5/8x24 at the muzzle, you can now install:
.30-cal muzzle brakes and compensators
Flash hiders and hybrid devices
Direct-thread suppressors and QD mounts that require 5/8x24
It’s a clean, reversible way to bring your 7.62×39 or 7.62/.30-cal AK into the same muzzle ecosystem as AR-10s and many precision rifles. Black Ankle Munitions+1
Precision Alignment: Muzzle-Face Index, Not “Rattle-Trap” Detents
Griffin specifically built these as true suppressor-grade adapters, not cheap hardware-store bushings. Shooting Surplus+2Ready Gunner+2
Key alignment features:
Raised surface indexes off the barrel’s muzzle face, not the front sight base
Provides vastly improved theoretical alignment vs. detent-retained devices that can wobble or cant
Designed for rifles with clean muzzle faces that are perpendicular to the bore for best results Shooting Surplus+2alpinerange.com+2
This geometry greatly reduces the risk of:
Griffin strongly recommends 50 ft-lbs of torque and qualified gunsmith installation plus alignment checks before running a suppressor—especially on surplus rifles where factory tolerances can vary. Shooting Surplus+2alpinerange.com+2
Built Tough: 17-4 Stainless with Melonite QPQ Black Finish
The 24MM5824A is made to live at the hottest, hardest-working part of your rifle: the muzzle.
This combination stands up to:
It’s a professional-grade upgrade meant for serious use.
Installer-Friendly: 27mm Wrench Flats & Shim Step
Griffin engineered this adapter to be easy to install correctly:
27mm wrench flats give you a solid grip point for torquing to the recommended ~50 ft-lbs. Palmetto State Armory+2Pelcher Outdoors+2
A step-cut shoulder is machined at the front to accept timing shims (not included), letting you perfectly time your muzzle brake or flash hider once the adapter is installed. Ammunition Depot+1
So you get both secure torque at the barrel and precise timing at the muzzle—critical when using directional brakes or QD suppressor mounts.
Optimized for 7.62×39 & .30-Cal AKs
Where the 1/2x28 version of this adapter is tuned for 5.45 and 5.56 AKs, the 5/8x24 24MM5824A is ideal for: Black Ankle Munitions+2Ammunition Depot+2
7.62×39 AK rifles with 24mm x 1.5mm muzzle threads
Other .30-caliber AK-pattern rifles using 24mm FSB threading
Builds where you want to run 7.62/.30-cal suppressors and muzzle devices that all share 5/8x24
Griffin notes this adapter is not intended for applications larger than 7.62mm projectiles, keeping you safely within design specs. Black Ankle Munitions+1
Ideal Use Cases
The Griffin Armament Suppressor Mount Thread Adapter 5/8"x24 is perfect for AK owners who want to:
Run .30-cal suppressors using common 5/8x24 mounts
Use AR-10 or .308 muzzle brakes and flash hiders on 24mm AK barrels
Avoid permanent gunsmithing like cutting/rethreading the barrel
Ensure a more concentric, properly indexed suppressor mount than typical detent-based AK muzzle devices
Whether your rifle is for range fun, competition, or serious defensive use, this adapter brings your AK into the modern muzzle-device world.
Always perform a visual bore alignment check with a suppressor installed before live fire—especially on surplus or modified rifles. Shooting Surplus+2alpinerange.com+2
Key Specs – Griffin 24MM5824A 5/8x24 Adapter
From Griffin Armament and major retailers: Shooting Surplus+2Ammunition Depot+2
Product Name: Griffin Armament Suppressor Mount Thread Adapter 5/8"x24 Melonite QPQ Black
Manufacturer: Griffin Armament
Manufacturer Part Number: 24MM5824A
UPC: 791154082256 Ammunition Depot+2Canoe Creek Armory+2
Barrel Thread (Input): 24×1.5mm RH
Muzzle Thread (Output): 5/8×24
Material: 17-4 stainless steel
Finish: Melonite QPQ black
Length: ~1.7"
Outside Diameter: ~1.17"
Outside Thread Length: ~0.56" Black Ankle Munitions
Wrench Flats: 27mm
Recommended Torque: 50 ft-lbs (gunsmith install recommended) Shooting Surplus+2alpinerange.com+2
Caliber Range: Intended for 7.62×39 and under (≤ 7.62mm) Black Ankle Munitions+1
Why Choose the Griffin Armament 24MM5824A?
Converts 24mm AK threads to industry-standard 5/8x24
Suppressor-focused design with muzzle-face indexing for better alignment
Rugged 17-4 stainless steel and Melonite QPQ finish for long service life
Supports timed muzzle devices and QD suppressor mounts with shim-friendly shoulder
Backed by Griffin’s reputation for high-quality suppressor accessories
If you’re ready to modernize your 24mm AK and run the same 5/8x24 suppressors and muzzle devices trusted on .30-cal ARs and precision rifles, the Griffin Armament Suppressor Mount Thread Adapter 5/8"x24 Melonite QPQ Black – 24MM5824A is the professional, durable solution.
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