Arsenal SASM7K AK-20 SBR | 7.62x39mm

The Arsenal SASM7K (AK-20) is a factory SBR built on a machined milled receiver and chambered in 7.62x39mm. It pairs modern features — including a free-floating handguard, a 3-position tunable gas system, and a free-floating, hammer-forged chrome-lined barrel — with the proven AK operating system. For optics, a low-power variable such as the Vortex Strike Eagle 1-6×24 provides a flexible sight picture for close-to-medium engagements and is available well under $1,000. Typical uses include carbine-focused range training and tactical-style competition where compact handling and controllable recoil are priorities.

Product Specifications

• The model designation is SASM7K.
• The product type is SBR.
• The caliber is 7.62x39mm.
• The barrel length measures 8.5 in. (215 mm).
• The overall length measures 28.00 in. (711 mm).
• The unloaded weight is 7.12 lbs (3.23 kg).
• The action type is Semi-Auto.
• The twist rate is 1:9.44 in. (1 in 240 mm).
• The rifling is 4 grooves.
• The listed muzzle velocity is 1,969 fps (600 m/s).
• The listed effective range is 547 yds (500 m).
• The listed maximum range is 1,480 yds (1,350 m).
• The finish is a MIL-SPEC black Cerakote.
• The gas system is a 3-position tunable gas system (Standard/Subsonic/Manual).
• The UPC is 810054133780.

Hand-assembled in a custom-shop configuration, the SASM7K blends traditional AK robustness with modern ergonomics and modularity. Its free-floating handguard and extended Picatinny top rail simplify optics mounting and help maintain point-of-impact stability under extended use. The adjustable gas system allows the rifle to be tuned for different ammunition types and suppressed or unsuppressed operation, making it adaptable for a range of controlled-fire applications.