Short Draw, Big Results and 400 FPS

TenPoint's new Viper S400 is its shortest forward draw crossbow with safe de-cocking.

Short Draw, Big Results and 400 FPS


(Press release) TenPoint’s shortest forward draw crossbow ever produced, the Viper S400 measures just 32 inches in length, yet delivers speeds up to 400 feet per second.

The super-compact crossbow also features the new ACUslide cocking and de-cocking system, measures only 7.2 inches wide and a half-pound less than previous TenPoint flagship models.

“The new Viper S400 is the perfect compact crossbow without feeling too short. It is light weight, fast, and flat-out accurate.” said Rick Bednar, TenPoint CEO. “In addition, the new ACUslide system is the best cocking and de-cocking system on the market.”

The ACUslide features our an Auto-Brake Gear System, which allows for silent cocking and safe and controlled de-cocking. It eliminates the potential of losing control, which can lead to injury or costly bow damage during the de-cocking process. When de-cocking, the user can remove their hand from the handle at any point — with no other action required — and the handle and will stop in place.


The new 7 ½-inch XTEND Adjustable Crank Handle reduces cocking effort to five pounds and stores securely into the butt-stock.


Fueled by RX6-Cams, which rotates 340 degrees to produce speeds up to 400 fps. The Vector-Quad cable system technology uses four cables instead of the traditional two, which eliminates cam lean and generates straight-nock travel leading to same hole down-range accuracy.

The Viper S400 features the company’s new S1 trigger, a two-stage, zero-creep design that features an advanced roller-sear system to deliver a consistent 3.5-pound pull. The trigger is equipped with a DFI (Dry-Fire-Inhibitor) and is fitted with a nylon-filament arrow retention brush that improves arrow grip and alignment to reduce noise and vibration. An integrated string stop system is also included to further reduce noise and vibration.

The crossbow has a new ultra-short 17-inch MICRO-TRAC fluted aluminum barrel that reduces the flight deck surface by 50 percent. The minimal string-to-barrel contact increases accuracy and provides the longest string life in the industry.

The barrel is fastened to the new ultra-light, two-piece TECH-X stock that features multiple weight-reducing cutouts, as well as a hollow pocket that houses the ACUslide cocking and de-cocking system. The stock provides the shooter with ideal length-of-pull and combines with the RangeMaster Pro Scope to yield perfect eye-level alignment.


Decorated in Veil Alpine camo or Graphite Gray, the Viper S400 ships completely assembled and includes a Ready-To-Hunt package, including:

  • ACUslide cocking and de-cocking system
  • RangeMaster Pro Scope
  • 3-pack of EVO-X CenterPunch Carbon Crossbow Arrows (.001” straightness)
  • Integrated String Stop System
  • NEW 6-arrow Tech Quiver
  • $1,599.99 - Veil Alpine Camo
  • $1,499.99 - Graphite Gray

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