PSA AK-104 Triangle Brace Pistol – 7.62×39 with Soviet Arms 10″ Rail, SA-2 Brake, and ALG Trigger

The PSA AK-104 Triangle Side Folding Pistol in 7.62×39 blends classic AK reliability with modern tactical enhancements. Featuring the Soviet Arms 10″ Rail & Railed Gas Tube, SA-2 Muzzle Brake, a Hinged Picatinny Dust Cover, and ALG Trigger with Lightning Bow, this pistol is optimized for control, accuracy, and adaptability in all shooting environments.

Barrel and Muzzle

Constructed with a 12.5″ 4150 steel barrel and finished with gas nitride for corrosion resistance, this AK-104 offers exceptional durability. The barrel twist rate of 1:10″ ensures stable bullet flight and consistent performance. The Soviet Arms SA-2 Muzzle Brake helps reduce recoil and muzzle rise, allowing for faster follow-up shots. Barrel threading is M24x1.5 RH.

Receiver and Core Components

The pistol features a stamped steel receiver paired with hammer-forged 4340AQ front trunnion, bolt, and carrier, guaranteeing long-term durability and smooth operation.

Handguard, Grip, and Brace

The Soviet Arms 10″ Rail & Railed Gas Tube provides multiple mounting points for optics, lights, and other tactical accessories. The Magpul MOE Grip ensures comfortable handling, while the Triangle folding brace adds stability and compact portability. Note that the brace folds internally, and the side folding button in the receiver only operates with a traditional 4.5mm stock.

Trigger and Sights

The ALG Trigger with Lightning Bow delivers a crisp, precise trigger pull for enhanced accuracy. Backup aiming is facilitated by a 90-degree combo sight/gas block and a peep sight.

Specifications

Caliber	7.62×39
Barrel Length	12.5″
Barrel Twist Rate	1:10″
Barrel Material	4150 Steel
Barrel Finish	Gas Nitride
Muzzle Device	Soviet Arms SA-2 Muzzle Brake
Muzzle Thread	M24x1.5 RH
Receiver	Stamped Steel
Front Trunnion	Hammer Forged 4340AQ
Bolt	Hammer Forged
Carrier	Hammer Forged
Handguard	Soviet Arms 10″ Rail & Railed Gas Tube
Grip	Magpul MOE Grip, Black
Brace	Triangle Folding Brace, Black
Fire Control Group	ALG Trigger with Lightning Bow
Sights	90° Combo Sight/Gas Block, Peep Sight
Magazine	30 Round Magazine (1); Where Allowed by Law
Includes	Side Rail Optics Mount
Cleaning Rod	Not Included

Features

• Soviet Arms 10″ Rail & Railed Gas Tube for versatile accessory mounting
• SA-2 Muzzle Brake reduces recoil and muzzle rise
• Triangle folding brace for compact storage and improved stability
• ALG Trigger with Lightning Bow for precise, responsive shooting
• Hammer-forged components for long-lasting reliability
• Hinged Picatinny Dust Cover with rear backup sight

Heritage and Modernization

Modeled after the Russian “Century Line of Rifles,” the PSA AK-104 combines classic AK functionality with modern American manufacturing, delivering a timeless shooting experience.

Pistol Configuration and Conversion

This pistol configuration allows historical short-barreled AK use while remaining ATF-compliant. With ATF tax stamp approval, the triangle brace can be swapped for a folding rifle stock via simple pin removal and adapter installation.

Ordering and Compliance

All PSA firearms must ship to a valid Federal Firearms Licensee (FFL). Buyers must comply with federal, state, and local firearm laws, including magazine capacity restrictions.

The PSA AK-104 Triangle Brace with Soviet Arms 10″ Rail, SA-2 Muzzle Brake, and ALG Trigger is perfect for AK enthusiasts seeking classic performance with modern tactical versatility.