The MS4043-00-121 from Adams Rite is a Cylinder Guard in Dark Bronze. The MS4043 series Cylinder Guard is a hardened-steel ring to protect the cylinder from vandalism. The MS4043 Cylinder Guard offers a three-way defense: 1. The outer shield ring is fully beveled to offer poor purchase for either prying or twisting. 2. This ring is hardened steel so that the combination of shape and hardness makes it virtually impossible to grip, even with sharpened tools. 3. In the event that a prying tool such as a cold chisel can be driven into the stile behind the shield ring, the would-be burglar is obliged to pull a heavy steel plate through a round hole in the 1/8″ metal door stile. This degree of leverage is far beyond that available with most hand tools.
Features
- Dark Bronze Anodized finish: Provides an attractive and durable surface that resists wear and corrosion.
- Security Ring made of hardened steel: Offers enhanced protection and is free swiveling when properly installed, making it difficult for intruders to gain leverage.
- Fits standard 1/8″ stile wall: Compatible with 5 or 6 pin cylinders, ensuring broad usability across various door types.
- Corrosion-resistant Retainer Ring: Made of hardened steel, it allows the security ring to swivel while providing additional durability.
Adams Rite MS4043-00-121 Cylinder Guard Specifications
| Material | Hardened Steel |
| Finish | Dark Bronze Anodized |
| Compatibility | Standard 1/8″ stile wall for 5 or 6 pin cylinder |
| Dimensions | Standard size for typical door installations |
| Weight | Lightweight for easy installation |



















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