Primary Arms 2.5X Compact Prism Scope - Illuminated ACSS CQB-M Reticle 2.5X MAGNIFICATION: The PAC 2.5X was designed from the ground up to be the ideal CQB and mid-range optic. ACSS CQB RETICLE: Features an etched version of the patented CQB-M ACSS bullet drop ranging reticle that requires no illumination. ILLUMINATION: Powered by a single CR2032 battery with 12 brightness settings. RUGGED AND DURABLE: Constructed of 6061 aluminum in black matte finish, this scope is water resistant, fog resistant, and nitrogen purged. Battery Type: CR2032 3V Lithium Coin Brand: Primary Arms Click Value: 1/2 MOA Eye Relief: 2.70 in Field View 100: 37.5 ft Illuminated: Illuminated Magnification: 2.5X Reticle: ACSS CQB Turret Features: Capped Turrets, Tool Adjustable Weight: 14.9 Oz