Griffin Armament 24x1.5mm Suppressor Mount Thread Adapter - 1/2x28, Black - 24MM1228A - 791154082249
Product Description
Mounting modern suppressors, muzzle brakes, or flash hiders onto AK-74, Krinkov, and Yugo pattern rifles with factory 24x1.5mm right-hand (RH) barrel threads presents significant compatibility challenges. Standard Western suppressors and muzzle devices are built around 1/2x28 threads, while AK front sight block threads are notoriously non-concentric and lack a square shoulder for proper optic/suppressor alignment. The Griffin Armament 24x1.5mm Suppressor Mount Thread Adapter (24MM1228A) resolves these mounting and alignment hurdles by converting metric 24x1.5mm threads into a standard 1/2x28 male thread interface engineered for concentric suppressive mounting.
Precision CNC-machined from 17-4 PH stainless steel and finished in a durable black oxide coating, this heavy-duty adapter threads directly onto your AK's 24x1.5mm front sight block threads. Featuring an internal indexing shoulder designed to square up against the face of the barrel or sight block base, it eliminates thread-wobble and provides a solid, concentric alignment surface to prevent catastrophic baffle strikes when running silencers or muzzle accessories.
Engineered for maximum operational versatility, the 24MM1228A allows shooters to adapt 1/2x28 suppressor mounts, direct-thread silencers, or flash hiders onto 5.45x39mm, 5.56 NATO, or .22 caliber AK platforms while preserving thread structural integrity under sustained firing schedules.
*Armorer Bench Notes & Real-World Staging Guidance:
Fitment & Bore Alignment Matrix: Converts female 24x1.5mm RH threads to standard male 1/2x28 TPI threads. Designed for AK-74, AKS-74U, SLR-104/106/107 series, and commercial AK variants with 24mm front sight block threads. Critical Safety Note: Due to factory manufacturing tolerances on imported AK front sight blocks, always verify bore alignment with an alignment rod prior to firing suppressed.
Installation Sequence:
- Safety check the rifle, remove the magazine, and physically/visually verify the chamber is clear.
- Depress the front sight block retention detent pin and unscrew any existing muzzle device.
- Thoroughly clean and degrease the 24x1.5mm external threads and face of the front sight block.
- Thread the Griffin 24MM1228A adapter onto the barrel threads, ensuring the internal shoulder seats flush and depresses the sight pin safely.
- Torque to 20–25 ft-lbs using appropriate wrench flats. Apply a high-temp anti-seize or threadlocker if permanent installation is desired. Check concentricity with a alignment rod before attaching a suppressor.
Key Features
- Converts 24x1.5mm RH to 1/2x28 Male Threads: Adapts metric AK-74/Krinkov barrel threads to accept standard Western muzzle devices and suppressors.
- 17-4 PH Stainless Steel Construction: High-tensile stainless alloy resists muzzle gas erosion, thermal stress, and thread stripping.
- Concentric Shoulder Indexing: Machined internal shoulders ensure square seating against the barrel face to prevent baffle strikes.
- Black Oxide Protective Finish: Guards against corrosion, carbon buildup, and harsh environmental conditions.
- Integrated Wrench Flats: Features precision-cut wrench flats for easy, high-torque installation and removal.
Product Specifications
- Brand: Griffin Armament
- Model: 24x1.5mm to 1/2x28 Suppressor Mount Thread Adapter
- MPN: 24MM1228A
- UPC: 791154082249
- Female Thread (Rifle End): 24x1.5mm RH (Metric Right-Hand)
- Male Thread (Muzzle Device End): 1/2x28 TPI
- Material: 17-4 Stainless Steel
- Finish: Black Oxide
- Bore Clearance: Up to .22 Caliber / 5.56mm / 5.45x39mm
