The BRN-601® Complete Upper Receiver is back!
Styled after the original Model 601, introduced in the late 1950s, the BRN-601® has distinct features, only found on those early AR-15 rifles. Starting at the muzzle, the "duckbill" flash hider is retained by a proper split washer of the proper size. The flash hider is attached to a lightweight 20 inch barrel, found on AR-15 variants through the M16A1. The 1-12 twist stabilizes 55gr and lighter projectiles extremely well, while the 20 inch barrel provides plenty of velocity. The front sight base is not F-marked, meaning the round, tapered front sight post is properly in line with the carry handle rear sight. Solid green triangle handguards closely emulate the original green painted handguards found on the 601. A flat slip ring anodized matte gray is at the end of the 5.56x45mm NATO barrel assembly.
The upper receiver matches the slip ring anodizing, in a beautiful matte gray. Mounted to the upper is a proper ejection port cover, with a flat external "bump" (not just an off the shelf A2). The triangle charging handle also has the same anodizing, giving the entire assembly a clean look. Inside, you'll find a chrome bolt carrier group quite similar to the original. It even has the solid firing pin retaining pin! These do have modern staked gas key screws and a modern firing pin (unlike the old large style firing pin). The front pivot pin hole is recessed to funciton with the 601 pivot pin. The A1 type rear sight assembly is right at home in the slickside upper receiver as well.
Key features of the BRN-601®:
- Slickside upper receiver
- Matte gray anodizing (not painted)
- 20" 5.56x45mm NATO barrel with 1-12 twist & chrome bore
- Chrome, slickside M16 bolt carrier group with 9310 bolt
- Duckbill three prong flash hider
We actually tracked down the original company that manufactured the Colt® AR-15 optics of the 1970s and asked them to build a new one for us as close to the original as possible - right down the yellow inspection stickers. The Retro 4x Optic has updated technology under the hood, with modern lenses and construction. The result is a scope that looks just like the original but has optical clarity and performance that are head and shoulders above it.
- Attaches to any standard AR-15/M16 carry handle
- Fully Multicoated lenses are fog and waterproof
- BDC click-adjustable elevation turret
- Manufactured in Japan with high quality internals and lenses
The Retro 4x Carry Handle Optic sports a simple, intuitive fine duplex reticle, like the original, and an elevation turret with BDC (ballistic drop compensated) clicks that closely match modern .223/5.56 55gr and 62gr ammo. As its name indicates, the Retro 4x comes with an integral carry handle mount that easily attaches to most AR-15 carry handles - no tools required.
As with all products we sell, this scope is fully backed by our Forever Guarantee.
Restricted Part
Please check with your state regulations for ownership of Restricted Parts. May require documentation.
