MSR Rear sight block assembly with lock lever for 7.62x39 milled receiver ID .730" Arsenal Bulgaria

Upgrade your Arsenal Bulgaria milled receiver AK with the precision-engineered MSR Rear Sight Block Assembly. This authentic Bulgarian-manufactured component delivers the exact fit and durability demanded by serious builders and enthusiasts working with 7.62x39 platforms. Key Features Complete rear sight block assembly including integrated gas tube lock lever for secure retention and easy maintenance Designed specifically for milled receivers with a .730" barrel opening ID ensuring precise alignment on 7.62x39 Arsenal Bulgaria rifles Factory-original Arsenal construction for reliable performance under demanding conditions Compact dimensions: 3" length x 1.5" width x 2" height for seamless integration Benefits for Your Build This assembly solves common fitment issues on milled receivers by providing the correct bore diameter and lever mechanism. Enjoy rock-solid rear sight stability, simplified gas tube installation, and long-term reliability without custom modifications. Whether restoring a classic or completing a custom build, it maintains the authentic Bulgarian quality Arsenal is renowned for. Specifications Caliber: 7.62x39mm Receiver Type: Milled Barrel Opening: .730" ID Includes: Gas tube lock lever Manufacturer: Arsenal Bulgaria SKU: 35134 Why Choose This Product Factory-spec components eliminate guesswork in AK builds. This rear sight block offers superior material strength and precise tolerances compared to aftermarket alternatives, ensuring your rifle functions flawlessly shot after shot. Common Applications Ideal for Arsenal milled receiver rifles, custom AK builds, and restoration projects requiring exact OEM replacement parts.