Anchor stanchions
Galvanized structural-steel weldments at each side of the opening.
ACTIVE VEHICLE BARRIERS · AVBD 651
AVBD 651PRODUCT DATA
Defender Net Barrier
M50 P2 · LESS-THAN-LETHAL ACTIVE VEHICLE BARRIER
A barrier that arrests the vehicle instead of shearing it. Crash tested at Calspan at both ends of its range — 21 ft 3½ in and 72 ft — and M50 P2 at both. Listed on the DoD Anti-Ram Vehicle Barrier List with no characteristic note against it.
ASTM F2656-15 · M50 P221′ TO 72′ SPANBI-DIRECTIONALMADE IN THE USA
THE CASE FOR A NET
STOP THE TRUCK. DON'T KILL THE DRIVER.
A net takes the impact load into synthetic ropes and energy absorbers, spreading deceleration over a longer distance. The Defender Net was crash tested at both its shortest and longest listed spans and achieved M50 P2 at both.
The lane remains clear of centerline hardware when retracted. The net lies in a shallow steel road pan and deploys in under two seconds.
DIFFERENTIATOR
M50 P2 at a 21 ft span and at a 72 ft span.
The same system covers up to six undivided lanes bi-directionally without dropping a rating.
AVBD 651 net at rest in the road pan - flush with the driving surface until it is deployed.
M50 P2
AT BOTH TESTED SPANS
72′
MAXIMUM CLEAR SPAN
<2s
EMERGENCY DEPLOY
~30min
RESET AFTER IMPACT
SYSTEM ANATOMY
TWO STANCHIONS. FOUR ROPES.
Energy absorbers
Four each end, eight total; reusable after impact.
The net
Four 2" synthetic ropes at 10" spacing, cross-woven with ½" rope and abrasion-resistant jacket.
Road pan
Shallow steel pan flush with road surface; net rests in it when down.
CONFIGURATION
RATED AT BOTH ENDS OF THE RANGE.
| Model / AVBD | Threat | Penetration | Standard | Test Lab | Notes |
|---|---|---|---|---|---|
| AVBD 651 — Long span | M50 | P2 | ASTM F2656-15 | Calspan | 72′ tested span; 19.6 ft penetration; report BR0015. |
| AVBD 651 — Short span | M50 | P2 | ASTM F2656-15 | Calspan | 21′ 3½″ tested span; 6.7 ft penetration; report BR0001. |
6
Family6 = Net Barrier
3 / 5
Threat Rating3 = M30 - 5 = M50
1
ConfigurationSequential configuration within the rating. See Configurations for tested spans and penetration.
Read any AVBD number the same way across the line: family, then threat rating, then configuration. AVBD 651 is a net barrier (6), rated M50 (5), in the first tested configuration (1).
VERIFIED, NOT SELF-DECLARED
TESTED AT BOTH ENDS OF THE RANGE.
ASTM F2656-15LISTED — DOD ANTI-RAM VEHICLE BARRIER LISTISO/IEC 17025Buy American
Calspan BR0001, 18 March 2020: 21 ft 3½ in span, M50 P2, 6.7 ft dynamic penetration. Calspan BR0015, 2 July 2020: 72 ft span, M50 P2, 19.6 ft dynamic penetration. Both configurations are listed on the March 2026 DoD Anti-Ram Vehicle Barrier List; brochure states no Appendix A characteristic note or Army/Air Force use restriction.
SPECIFICATIONS
AT A GLANCE.
- Crash rating
- ASTM F2656-15, M50 P2
- Tested spans
- 21′ 3½″ and 72′
- Test reports
- Calspan BR0001 · BR0015
- Penetration
- 6.7 ft at 21′; 19.6 ft at 72′
- Clear span range
- 21′ 3½″ to 72′
- Lanes covered
- Up to six undivided
- Direction
- Bi-directional
- Net
- 4 × 2" synthetic rope, 10" spacing
- Rope strength
- 380,000 lb break, each
- Energy absorbers
- Four each end, eight total, reusable
- Emergency deploy
- Under 2 seconds
- Actuation
- Manual, hydraulic, electro-mechanical
- Power
- 120 / 240 V AC
- Ambient range
- −40 °F to +140 °F
- Duty cycle
- Continuous
- Reset after impact
- From approximately 30 minutes
Warranty
Manufacturer warranty coverage for this product.
Parts10 years
Labor10 years
Component / ScopeStructure, stanchions, anchors and hardware
QualifierNet is a consumable and warranted separately.
Warranty takes effect only upon payment in full. Maintenance must be performed per the applicable O&M manual, with records produced upon request. Impact damage is not a defect.