The Trailblazer Firearms LifeCard is a single-shot .22 WMR pistol with a folding design that collapses to the size of a credit card. It weighs 5.5 oz and has a 2.5-inch barrel. 
 

Key Specifications 

• Model: LifeCard 
• Caliber: .22 WMR (Winchester Magnum Rimfire) 
• Barrel Length: 2.5 inches 
• Capacity: 1 round 
• Weight: 5.5 oz (0.34 lbs) 
• Finish Color: Brown 
• Manufacturer: Trailblazer Firearms 
• Condition: New in Box 
   

Detailed Features 

The folding mechanism is the defining feature. When closed, the LifeCard fits flat in a pocket without the profile of a conventional handgun. Deploying it requires unfolding, which takes a moment — not a quick-draw option, but that is not what it is designed for. 
 
Single-shot operation with .22 WMR keeps mechanics simple and weight at an absolute minimum. At 5.5 oz, it is one of the lightest pistols on the market. The brown finish is durable and holds up to the minor abrasion that pocket carry produces. 
 
The 2.5-inch barrel limits velocity somewhat, which matters more for .22 WMR than for centerfire calibers. Accuracy is adequate at close range, though anything past 10-15 yards gets challenging with a barrel this short.

The Trailblazer LifeCard .22 WMR generates a consistently polarized response that comes down to what you expect from it.

Owners who buy it as a novelty or backup option tend to be satisfied. The folding design and extreme lightweight get genuine appreciation, and the brown finish draws compliments for looking different from conventional handguns. Most find it fun to shoot given the low recoil and manageable size.

The criticisms are predictable and worth knowing upfront. The .22 WMR caliber draws skepticism for self-defense use versus larger centerfire options. Accuracy at longer distances is limited by the short barrel. Build quality feedback is mixed — some owners report solid construction, others note durability concerns with regular use. The folding mechanism needs practice to deploy under stress, and the single-shot capacity means follow-up shots require manual reloading. Pricing also divides opinion; some see it as fair for a niche product, others think it is high for the caliber and capacity.

As a backup or trail gun where weight is the priority and you are comfortable with its limitations, the LifeCard does what it claims. As a primary defense gun it has obvious constraints.