JMac Customs RSA-5.5 Rear Sight Adapter
The JMac Customs RSA-5.5 Rear Sight Adapter is a premium, precision-machined accessory designed to convert the rear sight block on AK-pattern rifles with a 5.5mm rear sight block into a stable Picatinny rail platform. Manufactured by JMac Customs, a leader in high-quality AK and firearms accessories, the RSA-5.5 allows shooters to mount red dot sights, scopes, and other optics directly over the receiver for improved accuracy and faster target acquisition.
Precision Engineering for AK Platforms
The JMac Customs RSA-5.5 is specifically engineered for AK rifles featuring a 5.5mm rear sight block, including many Bulgarian, Romanian, and other imported AK variants. Unlike generic adapters, the RSA-5.5 is machined from high-strength steel and designed to fit securely without requiring permanent modifications to the rifle. Its robust construction ensures it can handle the recoil and stress of semi-automatic and full-automatic fire while maintaining zero.
Key Features of the JMac Customs RSA-5.5
- Brand: JMac Customs
- Model: RSA-5.5
- Compatibility: AK-pattern rifles with 5.5mm rear sight block
- Material: High-Strength Steel
- Mounting: Picatinny Rail
- Finish: Black Oxide or Phosphate
- Best Use: Optics Mounting on AK Rifles
Secure and Reliable Optics Mounting
One of the biggest challenges with AK rifles is finding a stable mounting solution for optics. The RSA-5.5 solves this by replacing the standard rear sight leaf with a solid Picatinny rail section. This provides a low-profile, forward-mounted optic position that many shooters prefer for faster sight acquisition and better eye relief. The adapter is designed to lock securely into the rear sight block, minimizing movement and maintaining consistent zero even after repeated use.
Easy Installation and Versatility
The JMac Customs RSA-5.5 is designed for straightforward installation. It installs using the existing rear sight block components, making it a reversible modification. Once installed, it provides a full-length Picatinny rail that is compatible with a wide range of red dot sights, holographic sights, and magnified optics. This makes it an excellent choice for both recreational shooters and professionals who require a reliable optics platform on their AK rifle.
| Specification | Details |
|---|
| Brand | JMac Customs |
| Model | RSA-5.5 |
| Compatibility | 5.5mm Rear Sight Block AKs |
| Material | High-Strength Steel |
| Mount Type | Picatinny Rail |
| Finish | Black Oxide |
| Best Use | Optics Mounting |
Why Choose the JMac Customs RSA-5.5?
The JMac Customs RSA-5.5 Rear Sight Adapter stands out as one of the most reliable and well-engineered solutions for mounting optics on AK rifles with a 5.5mm rear sight block. Its precision machining, durable construction, and secure fit make it a favorite among AK enthusiasts who want a stable platform without compromising the rifle’s original design. Whether you’re building a modernized AK or simply want a better way to mount your favorite optic, the RSA-5.5 delivers professional-grade performance at an affordable price.
Upgrade your AK’s optics mounting capabilities with the JMac Customs RSA-5.5 Rear Sight Adapter.
