The 
HFC George Washington Flintlock Airsoft pistol is a non-blowback, single-shot replica powered by CO2 or Green Gas, known for its high level of historical detail and authentic look. It is primarily a collector's item or for use in themed events rather than standard airsoft skirmishes due to its realistic, time-consuming loading action. 
Key Specifications
Specification 
Details
Brand
HFC
Operation
CO2 or Green Gas, non-blowback
Material
Metal alloy barrel assembly, hammer, and buttcap with a faux wood body and grip
Velocity (FPS)
Varies by power type and source; ranges from an estimated 300+ FPS (Gas) to 400-440 FPS (CO2) with 0.20g BBs
Firing Modes
Single shot
Magazine Capacity
21 rounds (6mm BBs), internal magazine
Length
16 inches
Weight
Approximately 2.7 lbs (about 1.2 kg)
Hop-Up
No, fixed
Notable Features and Reviews
Authenticity: Reviewers praise the high level of detail, from the filigree engravings to the functional ornate hammer and faux frizzen mechanism, making it suitable for display, collecting, or cosplay.
Realistic Loading: The loading process, which involves using a ramrod and a "powder flask" style speedloader, mimics the real thing, adding to the immersive experience.
Aesthetics: It features a chrome finish on the metal parts and a rich, period-style faux wood body, giving it a look that wouldn't be out of place in a museum case.
Package Contents: It often comes with a faux leather powder flask (for BBs), a loading rod, and an 18th-century style instruction manual scroll for added flair.
Performance: While not built for speed in a modern airsoft skirmish, its CO2 power source provides strong velocity.