Service-Disabled Veteran-Owned Small Business
  • Sand Bag Window

Sand Bag Window

See more without sacrificing safety. The Sand Bag Window (SBW) is designed to dramatically increase visibility at entry control points or patrol points where sand bag bunkers are used.
Request a Quote



The SBW allows soldiers to observe enemy movements through a transparent armor window and access a secure firing port without sacrificing protection.

With the SBW, traditional sand bag fighting positions take on expanded uses from both a tactical and reconnaissance standpoint. The unit provides personnel with NIJ Level IV Armor-Piercing Resistant protection. Standard size is 34″ x 34″ and weighs 350 pounds. Custom-sized units are also available.

A fortified position

The Sand Bag Window is constructed of a durable armor frame which supports the transparent ballistic armor view window. The entire assembly is powder-coated for durability and corrosion resistance. The cube-shaped unit ships fully assembled on one pallet. It can be implemented quickly within a sand bag wall using machinery or by four field soldiers. Alternatively, the SBW can be used in walled fortifications by fitting the base armor with anchor brackets.

Staying on the safe side

Viewports that have been damaged after absorbing fire or shock from explosives can be replaced in the field from inside the bunker. The process requires two people, no tools and can be completed in approximately ten minutes. Soldiers can change the glass without leaving the safety of the bunker.

The SBW comes equipped with a closable weapon access port, providing soldiers with a secure firing point with minimal exposure. During combat situations, troops slide the port’s protective cover open to gain firing access and look through the window to identify targets. There is no need to leave the safety of the bunker or extend any parts of the body beyond the protected area to engage targets.

Other Popular Products:


The unit provides personnel with NIJ Level IV Armor-Piercing Resistant protection.

National Institute of Justice (NIJ) 0108.01 Ballistic Level Breakdown

Rating Ammunition Weight
Number of
Level I .22 long rifle high velocity lead 40 2.6 320 +/- 12 1050 +/- 40 5
Level I .38 special round nose lead 158 10.2 259 +/- 12 850 +/- 50 5
Level IIA .357 mag. jacketed soft poin 158 10.2 381 +/- 15 1250 +/- 50 5
Level IIA 9mm full metal jacket 124 8.0 322 +/- 12 1090 +/- 40 5
Level II .357 mag. jacketed soft poin 158 10.2 425 +/- 15 1395 +/- 40 5
Level II 9mm full metal jacket 124 8.0 358 +/- 12 1175 +/- 40 5
Level IIIA .44 mag. lead semi-wadcutter gas checked 240 15.55 426 +/- 15 1400 +/- 50 5
Level IIIA 9mm full metal jacket 124 8.0 426 +/- 15 1400 +/- 50 5
Level III 7.62mm (.308 Winchester) full metal jacket 150 9.7 838 +/- 15 2750 +/- 50 5
Level IV .30-06 armor piercing 166 10.8 868 +/- 15 2850 +/- 50 1

Contact Us


The following items are some basic questions to ask when preparing your Defenshield order.

What is the nature of the threat – small arms, rifle rounds, armor piercing, IED blast?

Will the unit be used indoors or outdoors?

Will the unit be used for riot control or hostage negotiations?

Do you require conspicuous deterrence or camouflage?

Will the unit need to match the aesthetics of it’s surroundings – wood or stone finishes?

Will you need traffic control signage, unit logos or law enforcement badges displayed on the unit?

What is the size of the space where the unit will be used?

Will the unit need to fit through doorways, into elevators?

What are you protecting – people, objects?

(For maximum blast mitigation, units must be secured or lagged.)

What surface are you using the unit on – gravel, dirt road, finished concrete, wood floor?

Will the unit be frequently relocated?

Will you be transporting the unit over long distances or within a few feet?