Radikal MKX-3 12 Gauge Semi-Auto Shotgun, 18.5" Barrel, 3" Chamber, Magazine-Fed, Adjustable Gas, Telescoping Stock – Matte Black
This Radikal MKX-3 is a magazine-fed 12-gauge semi-automatic shotgun with an AR-style layout, a 3" chamber, and a Modified choke. It features an externally adjustable gas regulator, an 18.5" barrel with a cylindrical ported muzzle device/shroud, and a telescoping polymer stock. Imported by SDS Knoxville, TN, it offers a continuous top Picatinny rail and purpose-built controls suited to its platform.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Specific Condition Notes: This shotgun shows minimal handling marks from prior use. The manual safety does not work correctly. Please review the photos for a close look at the cosmetics and details.
What's Included
- Radikal MKX-3 12-gauge semi-automatic shotgun
- 1x 5-round detachable steel AR-12 style box magazine
The MKX-3 uses a gas-operated system with an externally adjustable regulator, allowing the user to tune cycling for different 12-gauge loads. The action feeds from detachable box magazines and is rated for a 5+1 capacity.
Its AR-style configuration includes a right-side ejection port and a large, reciprocating, oversized charging handle. Controls are laid out for quick access, and the 14.0" length of pull and telescoping polymer stock with rubber buttpad provide a versatile fit.
The upper features a continuous top Picatinny rail with additional short rail sections at the front at 12 o'clock and 6 o'clock for accessories. A ventilated, free-float style metal handguard surrounds the 18.5" barrel, which is paired with a cylindrical ported muzzle device/shroud.
Sighting is set up with a fixed triangle-style front sight block and no rear sight. The shotgun wears a matte black finish throughout, includes a polymer pistol grip, and is marked by the importer SDS Knoxville, TN. It is chambered for 3" shells and fitted with a Modified choke.




