The Athlon Helos BTR Scope delivers a rare combination of rock-solid reliability, first focal plane reticle, premium optics, and-most notably-an affordable price tag. The aircraft-grade aluminum tube is argon purged and 100% waterproof, fogproof and shockproof, so you can hunt confidently anywhere, in any weather. The first focal plane reticle increases and decreases in size with magnification, so the holdover and ranging marks stay true at any zoom. The illuminated crosshairs and center circle provide another targeting option when your target is on the move at close and medium ranges. Advanced fully multi-coated optics and a unique XPL protective lens coating combine to provide exceptional clarity and color fidelity along with an added degree of durability for harsh environments. All these features would normally cost you quite a bit more, but the Helos BTR can be yours for a price that's easy to stomach. More on the AHMR2 Reticle The AHMR2 FFP IR MOA reticle is specifically designed for hunting and mid-range applications with popular hunting calibers, with hold-over points for both bullet drop compensation and wind. The center cross with 12 MOA circle is perfect for locking in big game at various distances. The reticle is designed for you to zero your rifle at 100 yds center and use the bullet drop holdover up to 700 yds. The dots on horizontal lines below the center are specially designed for holding over for 5 mph and 10 mph wind. The ranging reticle down below is specially designed for ranging a deer body mass (from belly to the top of shoulder of a whitetail buck) from 200-600 yds. The illuminated center portion of the reticle provides great visibility during dusk and dawn low light conditions. Advanced fully multi-coated optics for maximum light transmission XPL coating for protection from dirt, dust, oil and more First focal plane AHMR2 illuminated MIL reticle features a wealth of holdover and ranging hashes Illuminated crosshairs and center