The 
Double Bell AM45 Vorpal Bunny Gas Blowback Pistol is a green gas-powered, full-metal airsoft replica known for its distinct futuristic, anime-inspired design and realistic blowback action. It is based on the classic 1911 platform with Tokyo Marui-compatible internals and is available in various finishes, including black and silver/black. 
Key Features and Specifications
Construction: The pistol features a durable full metal (alloy) slide and frame, with high-density polymer grip panels.
Propulsion: It is powered by green gas, providing a satisfying kick with each shot and consistent performance.
Design: The AM45 has a unique, custom look, including a skeletonised hammer and flat trigger, an ergonomic thumb groove, and a flared magazine baseplate.
Performance: It offers a velocity ranging from approximately 200-330 FPS (feet per second) depending on the gas and environmental conditions. It also features an adjustable hop-up system for improved accuracy.
Fire Mode: The pistol fires in semi-automatic mode only and includes a trigger lock safety mechanism.
Magazine: The included metal magazine has an 18-round capacity.
Accessories: The pistol is often supplied in a hard polymer storage case and may include a spare nozzle. 
Reviews and Expert Opinions
Aesthetic Appeal: Reviewers consistently highlight the pistol's unique, eye-catching aesthetic inspired by the Sword Art Online Alternative Gun Gale anime series. The black and silver/black finishes are considered stylish and stand out on the field.
Performance vs. Price: The Double Bell AM45 is generally considered a great entry-level option or an inexpensive sidearm for those seeking an anime-style look without purchasing the premium-priced Tokyo Marui version.
Durability and Feel: Despite its lower price point compared to premium models, the full-metal construction provides a solid, realistic feel and weight.
Moddability: The pistol is designed to be compatible with other magazines from Tokyo Marui and other TM-spec parts, allowing for future upgrades or part replacements.
Potential Cons: Some reviewers note it may require some minor adjustments (like hop-up tuning) out of the box to perform optimally, and due to the compact magazine's small gas reservoir, some suggest loading fewer BBs (around 10-15) for better rapid-fire performance.