JMac Customs RSA-4.5

JMac Customs RSA-4.5 Rear Stock Adapter JMac Customs RSA-4.5 Rear Stock Adapter The JMac Customs RSA-4.5 Rear Stock Adapter is a high-quality mounting solution designed specifically for AK-pattern firearms equipped with 4.5mm rear trunnions. Manufactured by JMac Customs, a leading American company known for producing premium AK accessories, the RSA-4.5 allows users to easily install folding stocks, braces, and other rear-mounted accessories on compatible AK pistols and rifles. This adapter provides a secure and reliable mounting platform while maintaining the compact and functional nature of the AK platform. Precision Fit for 4.5mm AK Trunnions The RSA-4.5 is engineered to fit AKs with the 4.5mm rear trunnion, which is commonly found on many Russian, Bulgarian, and other Eastern European AK variants. This adapter replaces the standard rear trunnion cover and provides a solid mounting point for a wide range of JMac Customs stocks and braces, including the popular AB-8 Arm Bar system. The precise machining ensures a tight, wobble-free fit that enhances overall stability and accuracy. Key Features of the JMac Customs RSA-4.5 Model: RSA-4.5 Rear Stock Adapter Compatibility: 4.5mm AK Rear Trunnions Features: Heavy-duty construction, precise fit, multiple mounting options Finish: Black oxide or raw (depending on variant) Best Use: AK Pistols, SBRs, Folding Stock Conversions Robust Construction and Reliability JMac Customs is renowned for producing some of the strongest and most reliable AK accessories on the market. The RSA-4.5 is machined from high-strength steel and built to withstand the rigors of hard use. Whether you're running a home defense AK pistol or a competition setup, this adapter provides a rock-solid foundation for your stock or brace. The design minimizes play and ensures consistent performance even under heavy recoil. Versatile Mounting Options The RSA-4.5 opens up a wide range of customization possibilities for your AK. It is compatible with various JMac Customs folding mechanisms and stock adapters, allowing you to configure your firearm exactly how you want it. Whether you prefer a compact folding brace for an AK pistol or a full folding stock for an SBR, the RSA-4.5 serves as the critical link between your trunnion and your chosen rear accessory. Specification Details Brand JMac Customs Model RSA-4.5 Compatibility 4.5mm AK Rear Trunnions Material High-Strength Steel Features Secure Mounting, Folding Stock Compatible Best Use AK Pistols & SBR Conversions Why Choose the JMac Customs RSA-4.5? The JMac Customs RSA-4.5 Rear Stock Adapter is the ideal solution for AK owners looking to add a folding stock or brace to their 4.5mm trunnion firearm. Its precision engineering, robust construction, and compatibility with a wide range of accessories make it one of the most trusted options in the AK community. Whether you're building a compact AK pistol or converting a rifle to an SBR, the RSA-4.5 delivers the strength, reliability, and performance that JMac Customs is known for. Upgrade your AK with a professional-grade rear stock adapter. The JMac Customs RSA-4.5 provides a secure and versatile mounting solution for 4.5mm AKs. The End