Expand the versatility of your red dot sight with this 3x magnifier from Vortex. The push-button design of the Vortex VMX-3T Magnifier engages and disengages the flip-mount, allowing the 3x magnifier to lock in place. The result, 3x magnified or unmagnified views when you want. Optics are fully multi-coated for optimal light transmission. Lightweight and tough, hard-coat-anodized machined-aluminum construction ensures durability. Internally nitrogen purged for reliable waterproof/fogproof performance. Ultimate magnified versatility for virtually any AR-height red dot sight. The Vortex VMX-3T Magnifier will work with any Vortex red dot, but it is not recommended for use with prism scopes.