The A.R.M.S. #40 Flip-up Rear Sight is more than just a back-up sight; it’s a critical component of history. Built to NSWC Crane specifications and issued to elite US Navy SEALs, this is the original sight used on the iconic Mk12 Mod 0 and Mod H rifles. If you're serious about building an authentic SPR clone, this is the part you can't compromise on. Hard to find and even harder to keep in stock, it’s a piece that speaks to the collector’s desire for perfection—the exact military rifle component you need to complete your build. This sight isn't for just anyone; it’s for those who know the value of precision, durability, and historical accuracy.
- Authentic military specification: The same rear sight used by SEAL teams and NSWC Crane for the Mk12 Mod 0 and Mod H.
- Quick-deploy flip-up design: Stays low-profile until you need it, snapping instantly into action when required.
- Durability in the field: Proven reliable in combat conditions, built to withstand the toughest environments.
- Perfect for SPR clones: Essential for anyone building an accurate replica of the military Mk12 rifle.
- Picatinny rail compatibility: Mounts seamlessly on standard rails, as well as ARMS and PRI "Swan Rails," ready to go out of the box.
The Mk12 Mod 0 rifle holds a legendary place in military lore, and the ARMS #40 Flip-up Rear Sight was a key part of its success. When precision shooting mattered, this sight provided that critical back-up option in the heat of combat. Crafted from aircraft-grade aluminum, it’s both lightweight and extremely durable—qualities essential for a combat rifle. Unlike other back-up sights, this one was engineered with the realities of war in mind. Its low-profile flip-up mechanism keeps it out of the way when not needed, yet ready for instant deployment when the situation changes. This combination of reliability and adaptability is why it became the go-to choice for NSWC Crane when developing the SPR.
Collectors know that the devil is in the details, and this sight is one of those critical details that sets your Mk12 build apart. Anyone can slap on aftermarket parts, but true collectors and dedicated cloners want the real deal—this is the correct part for a Mk12 Mod 0 or Mod H, period. And because these sights are so rare, owning one is not just about function; it’s about completing a rifle with true historical authenticity. When we have them, they move fast, and during times of limited supply, we may even restrict the number any one buyer can purchase to ensure that more collectors get their hands on this essential piece.
Whether you’re a seasoned collector aiming for that perfect SPR clone or a military rifle enthusiast looking for the best, the A.R.M.S. #40 Flip-up Rear Sight is the part that completes the story of your rifle.
During times of limited availability, we may restrict purchase quantities to allow more customers have a chance to own this coveted piece.
A.R.M.S., Inc
