Daniel Defense - A1.5® Fixed Rear Sight (Rock & Lock®)

The A1.5 Fixed Rear Sight is designed for easy installation on any Military Specification flattop upper receiver. It uses a slotted fastener and a self-locking steel thread insert to ensure a secure attachment. This method of installation provides a stable and reliable connection, which is essential for maintaining accuracy during use. The one-piece construction further simplifies the installation process, making it accessible even for those with limited technical experience.

The A1.5 Fixed Rear Sight is designed for easy installation on any Military Specification flattop upper receiver. It uses a slotted fastener and a self-locking steel thread insert to ensure a secure attachment. This method of installation provides a stable and reliable connection, which is essential for maintaining accuracy during use. The one-piece construction further simplifies the installation process, making it accessible even for those with limited technical experience.

The A1.5 Fixed Rear Sight is machined from 6061 aircraft-grade aluminum. This choice of material provides a balance between strength and weight, ensuring durability without adding unnecessary bulk to the rifle. Additionally, the sight is finished with a Military Specification Hard Coat Anodized treatment, which enhances its resistance to corrosion and wear, making it suitable for various environmental conditions.

Yes, the A1.5 Fixed Rear Sight is designed to be used as a backup to primary optics. It is particularly compatible with reflex optics, allowing for quick transition in case of optic failure. This dual capability enhances the versatility of your rifle setup, providing a reliable aiming solution in various scenarios. However, users should ensure that their primary optic is mounted at a height that allows for co-witnessing with the iron sights if desired.

The A1.5 Fixed Rear Sight is ideal for tactical and emergency preparedness scenarios. In situations where electronic optics might fail due to battery depletion or damage, having a reliable backup iron sight ensures continued operational capability. This is crucial in both urban and rural settings where quick, accurate shots may be necessary. The sight's robust construction also makes it suitable for harsh environments, providing peace of mind in survival situations.

The A1.5 Fixed Rear Sight enhances the security of a rifle setup by providing a dependable aiming solution. Its fixed nature means it is always ready for use, unlike flip-up sights that require manual deployment. This constant readiness is vital in high-stress situations where every second counts. Additionally, the sight's durable construction ensures it remains functional even under rigorous use, making it a reliable component of any tactical or self-defense setup.

For more on enhancing your rifle's security setup, consider exploring our Security Pillar collection.

The A1.5 Fixed Rear Sight is compatible with any M4-type rifle that features a Military Specification flattop upper receiver. This compatibility ensures that it can be easily integrated into most modern tactical setups without the need for additional modifications. However, it is important to verify the specifications of your rifle to ensure proper fitment and functionality.

The A1.5 Fixed Rear Sight requires minimal maintenance due to its durable construction. Regular checks should be performed to ensure the fasteners remain secure, especially after extensive use. The hard coat anodized finish provides excellent resistance to corrosion, but it is still advisable to clean the sight periodically with a soft cloth to remove any dirt or debris that may accumulate. This simple maintenance routine will help maintain the sight's functionality and longevity.

The A1.5 Fixed Rear Sight is designed to perform reliably in a variety of weather conditions. The hard coat anodized finish provides excellent protection against corrosion, which is crucial in wet or humid environments. Additionally, the robust construction of the sight ensures it can withstand the physical stresses associated with extreme temperatures and weather conditions. This makes it a dependable choice for outdoor and survival scenarios where environmental factors can be unpredictable.

A fixed rear sight like the A1.5 offers several advantages over flip-up sights. Its always-ready position eliminates the need for manual deployment, which can save critical time in emergency situations. The fixed design also tends to be more robust, as there are fewer moving parts that could potentially fail under stress. While flip-up sights can be more versatile in terms of profile management, the reliability and simplicity of a fixed sight make it a preferred choice for many tactical and survival applications.

For more insights on tactical gear setup, explore our Tactical Survival Gear guide.