I use these two products on my Scorpion EVO S 3 SBR. After quickly mounting these two products on the picatinny rail this SBR package is totally awesome! I can use the M21 by itself, which by the way does not require batteries, out to 100 yards. Move the Vortex VMX-3T magnifier in place on it's swivel mount and now it's good for targets out to 300 yards. You could spend somewhat less on the reflex sight from another great manufacturer, but the M21 is a proven optic and used by militaries all over the world due to it's heavy duty construction and proven optic technology. Spend a little more on this optic and enjoy using it every day that you shoot.
Verified purchase: Yes | Condition: New
These are used 2016 m21 sights and they are operating like brand new. The reticles are still crisp. It's very rugged and solid.
Verified purchase: Yes | Condition: Pre-owned
It is big but it is built better than any other tritium sights that I've ever owned And the dot Is always the perfect brightness
Verified purchase: Yes | Condition: New
Love the Meprolight M21....great optic that's built like a tank and doesn't require batteries.
Verified purchase: Yes | Condition: New
Verified purchase: Yes | Condition: New
Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Best Selling in Red Dot & Laser
Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Save on Red Dot & Laser