In this table top review, we take a close look at the Steambow B08 .68 Caliber Tactical Crossbow, a compact and versatile system designed for shooting rubber balls, paintballs, or foam projectiles. This model is particularly suited for controlled environments like indoor ranges (such as a sea can setup or even basement or backyard), thanks to its relatively moderate power and flexible ammunition options.
A full shooting test will follow separately, but for now, let’s break down the specifications, features, and what comes in the box.
Specifications
Model: Steambow B08
Caliber: .68 (rubber balls, paintballs, foam balls, etc.)
System Type: Recurve crossbow
Draw Weight: 35 lbs (standard included limb)
Velocity: Up to 260 FPS (manufacturer claim)
Energy: Approx. 7 ft-lbs (up to ~15 ft-lbs with stronger limbs)
Magazine Capacity: 8 rounds (removable)
Weight: Just under 4 lbs
Length: 24.2 inches
Width: 3.15 inches (body, excluding limb span)
Height: 8.3 inches
Materials: Fiberglass, metal, and polymer construction
Stock: AR-style adjustable (6-position) with cheek rest and rubber butt pad
The B08 is distributed by Steambow GmbH (Austria) and is built on a modular platform compatible with other Steambow systems like the M10.
Key Features
Modular Platform
One of the standout aspects of the B08 is its modular design. The lower receiver is identical to the Steambow M10, meaning you can swap uppers to shoot either:
.68 caliber balls (B08 upper)
Crossbow bolts (M10 upper)
This gives users flexibility to adapt the platform for different uses.
Quick Change Limb System
The included 35 lb limb is easy to swap out:
Secured by a single bolt
Can be upgraded up to heavier options (up to ~120 lbs available)
Allows tuning for power vs. ease of cocking
Magazine-Fed Repeater System
8-round removable magazine
Spring-fed system with follower
Auto-loading mechanism (not semi-auto, but fast cycling)
The system works by “breaking” or pulling back the stock, which:
Cocks the string
Loads the next round
Prepares the trigger
Cocking Mechanism
Shoulder-supported operation
Pull stock inward to cock
Very easy with 35 lb limb
Allows relatively fast follow-up shots once familiar
Sighting System
Fiber optic front sight
Rear alignment via top trough channel
While simple, it works well for close-range shooting. However, the included Picatinny rails (top and bottom) allow for:
Red dots
Scopes
Tactical accessories
Build & Ergonomics
Polymer lower with reinforced components
AR-style adjustable stock
Adjustable cheek rest
Rubber butt pad
Included foregrip (user-installed)
Overall, the Steambow B08 .68 Caliber Tactical Crossbow has a solid, lightweight feel while still maintaining good handling characteristics.
What’s Included in the Box
The B08 comes well-packaged with multiple internal boxes and includes:
Steambow B08 main unit
35 lb limb
Foregrip
8-round magazine
25 “foam” balls (closer to hard nylon in feel)
Protective shooting glasses
Allen keys (for assembly and adjustments)
String wax
Extra string
Mounting hardware
Instruction manual
Note:
A small locking component for the upper assembly may come separate and is not clearly explained in the manual, but is required for proper function.
Operation Overview
Load magazine with up to 8 rounds
Insert magazine into front housing
Cock by pulling stock inward
Fire using single-action trigger
The ball is held in place by a simple groove and string system, guiding it forward during firing.
Performance Notes (Initial Impressions)
Smooth and reliable operation
Easy to cock with 35 lb limb
Suitable for indoor shooting environments
Compatible with various projectile types
Heavier limbs will:
Increase velocity and energy
Require more effort to cock
Pros
Lightweight and compact (under 4 lbs)
Modular system (compatible with M10 platform)
Magazine-fed repeater design
Easy cocking with included limb
Quick-change limb system
Picatinny rails for accessories
Comes with useful extras
Quiet operation
Reusable ammunition options
Cons
Higher price point
No traditional rear sight included
Learning curve for efficient operation
Included limb may feel underpowered for some users
Final Thoughts
The Steambow B08 offers a unique blend of crossbow mechanics and tactical styling, combined with modular flexibility and relatively safe indoor usability. It’s especially appealing for users who want:
A reusable ammo platform
Quick follow-up shots
Expandability with other Steambow systems
While the included 35 lb limb keeps it easy to use and accessible, upgrading the limb will unlock more performance potential for those looking for higher energy output.
Availability
Available through Replica Airguns:
A full shooting test and performance breakdown will follow in a separate review.