The Trijicon ACOG 3x30 TA33-C-400383 with red crosshair reticle calibrated for 300 Blackout 115-220 grain ammunition is the purpose-built ACOG configuration for 300 BLK law enforcement and military platform users who want the clean, traditional crosshair aiming format in a reticle calibrated specifically around the 300 Blackout cartridge's unique dual-velocity performance characteristics - the TA33 ACOG solution for 300 BLK operators who need the correct holdover references for both supersonic and subsonic loads. The Trijicon ACOG Scope TA33-C-400383 red crosshair reticle covers the full 300 Blackout projectile weight range from 115-grain supersonic loads through 220-grain subsonic configurations - the calibration range that gives 300 BLK operators who run both ammunition types the correct aiming references across the cartridge's practical engagement envelope without requiring separate optics for supersonic and subsonic use. The traditional red crosshair format gives 300 BLK platform users the clean, precise intersection aiming point that confident shot placement demands at distances effectively covered by 3x magnification. The ACOG 3x30 TA33-C-400383 long eye relief accommodates the varied shooting positions that dynamic law enforcement and military operations regularly produce - more forgiving eye placement for fast acquisition across non-standard field scenarios. The Bindon Aiming Concept, both-eyes-open design, keeps full situational awareness intact during active target engagement. Battery-free fiber-optic and tritium dual illumination delivers reliable reticle performance in any lighting condition. The ACOG Mount TA33-C-400383 includes the Compact ACOG Q-LOC mount — Mil-Spec drop-test-rated 6061-T6 aluminum with one-handed, tool-free mounting and superior return-to-zero on any Mil-Spec or NATO Picatinny rail. Spring tension torque spec: 12 to 16 inch-pounds, with optional tightening to 30 to 38 inch-pounds. Trijicon ACOG riflescopes come in the following magnification levels: 1.5x16, 1.5x24, 2x20, 3x24, 3x30, 3.5x55, 4x32, 5.5x50, and 6x48. Features: Red crosshair calibrated for 300 BLK 115-220gr — supersonic and subsonic coverage BAC both-eyes-open for fast acquisition and situational awareness Battery-free tritium and fiber optic - always on Forged 7075-T6 aluminum - nearly indestructible Waterproof to 100 meters - 5x military standard Q-LOC mount with superior return to zero With over one million produced, Trijicon’s Advanced Combat Optical Gunsight, better known as the ACOG has become iconic in the realm of combat optics — and for good reason, the ACOG has an unquestioned reputation for quality and reliability. The Trijicon ACOG is the official medium range weapon sight for both U. S. Special Operations Forces and the Marine Corps as well as being the optic of choice for law enforcement agencies across the country. What sets the ACOG apart from the pack is what it offers to its users, increased hit potential regardless of light conditions. This is due to the tritium/fiber optic illuminated reticle found in most Trijicon ACOG riflescopes, this automatically adjusts illumination of the reticle based on available light. With a wide array of magnification levels, reticle designs, and reticle colors available — there truly is an ACOG for every mission. Trijicon ACOG riflescopes come in the following magnification levels: 1.5x16, 1.5x24, 2x20, 3x24, 3x30, 3.5x55, 4x32, 5.5x50, and 6x48. Features: Superior Quality Glass Lenses Multi-coated lenses provide superior clarity and light transmitting capabilities with zero distortion. Rugged Aluminum-Alloy Housing Forged 7075-T6 aircraft aluminum-housing provides for a nearly indestructible sighting system. Fixed Magnification Less moving parts than a variable optic equals increased durability and reliability. Seven magnification levels are available. Waterproof up to 100 Meters Dry-nitrogen filled to eliminate fogging. Five times more waterproof than military standard requirements. Both Eyes Open Design The ACOG can be used as a CQB sight when shooting both eyes open utilizing the Bindon Aiming Concept. Trijicon ACOG 3x30 Dual Illum Red Crosshair 300BLK 115/220gr. Ballistic Compact Riflescope w/Q-LOC Mount TA33-C-400383