Century Dynamics

Reliable Source on Demand!

Leader 50A1

.50 Caliber Semi-Automatic Rifle & 338 Lapua

Recipient of the prestigious Blue Book of Gun Values award for excellence and innovation in firearms design for 2016.

Charles St. George has taken his 30 years of experience in bullpup weapons design to the next level, resulting in the award-winning Leader 50 A1—the lightest and most compact semi-automatic .50 BMG rifle in the world.

The breech bolt is triangular in design and made from an exotic steel alloy, giving the Leader 50 A1 one of the strongest actions used in small arms. In addition to the straight-line construction, the recoiling action never reaches the rear end of the receiver—stopping at the midpoint against the barrel extension—eliminating muzzle climb and ensuring that the rifle remains on target. These features, together with the effective muzzle brake and gas operation, work to minimize felt recoil. The Leader 50 A1 also incorporates a non-reciprocating charging handle, and a dust cover that seals the action against dirt and debris. 

 Contact us today! sales@century-dynamics.com​


  • Manufacturer: St. George Arms
  • Model: Leader 50 A1
  • Cartridge: .50 BMG (12.7×99mm NATO)
  • Type: Semi-Automatic Rifle, Bullpup
  • Action: Gas-Operated (Long-Stroke Piston), Rotating Bolt (Three-Lug, Triangular)
  • Weight (empty): 8.39 kg (18.5 lb)
  • Overall Length: 1,003 mm (39.5 in)
  • Barrel Length: 609.6 mm (24 in)
  • Magazine: 10-Round Detachable Box