Tangent Theta 3-15x50 Model TT315M

• 3-15x magnification range: This zoom span covers a wide spread of practical shooting distances, giving the scope enough low-end field of view for target acquisition while still providing the precision needed for intermediate-range holds and shot placement.
• First focal plane illuminated reticle: The FFP layout keeps reticle subtensions consistent throughout the magnification range, so holdovers and corrections remain accurate at any power, while red illumination helps the aiming point stand out in dim backgrounds.
• Double-turn tactical elevation turret with zero stop: The DT turret system provides substantial adjustment in a compact format and lets the shooter return positively to zero, which is especially useful when dialing for changing distances under time pressure.
• Side parallax adjustment from 50 m to infinity: Fine parallax control helps keep the target and reticle on the same focal plane, improving precision at varying distances and reducing aiming error in field and range use.
• Canadian-made 30 mm scope body: The 30 mm tube, nitrogen-filled construction, and waterproof, fogproof, shockproof build support dependable use in hard weather, transport, and repeated recoil.

About the Tangent Theta Professional Marksman Series

The Tangent Theta Professional Marksman series is built around the needs of shooters who want a compact precision optic without giving up the adjustment quality and mechanical discipline expected from a dedicated tactical riflescope. In this family, the emphasis is on intermediate-range precision, with features such as non-translating knobs, an elevation zero stop, and a double-turn elevation turret that keep the controls predictable and easy to read when dialing corrections.

The series is aimed at professional marksmen, but its format also suits competition use and practical field shooting where weight, size, and repeatability matter. Tangent Theta pairs this mechanical layout with side parallax adjustment, illuminated reticle options, and a lockable rapid-adjusting diopter, creating a scope platform that balances precision with fast setup. Reticle choices in the series include designs such as Gen 2 XR, Gen 2 Mildot, Gen 3 XR, and MOA-ER, allowing the same core scope architecture to serve different correction and ranging preferences. Manufactured in Halifax, Nova Scotia, Canada, the Professional Marksman line reflects a design approach focused on compact form, repeatable tracking, and practical use in serious shooting applications.

About the Tangent Theta 3-15x50 Model TT315M

The Tangent Theta 3-15x50 Model TT315M is a reduced-weight professional marksman riflescope built for shooters who need a compact optic that still offers meaningful dialing range and precise reticle use. Its 3-15x magnification makes it versatile across patrol, tactical, and intermediate-range precision roles. At the low end, the wider field of view helps with locating and following targets; at the high end, the added image scale supports exact shot placement and more confident observation of trace, splash, or target detail.

The 50 mm objective lens helps maintain a useful balance between light-gathering ability and manageable overall size, while the fully multicoated optical system supports contrast and image clarity in mixed light. A constant 90 mm eye relief gives the shooter a stable head position and helps maintain comfort on rifles with stronger recoil or less forgiving shooting positions. The fast-focus eyepiece speeds reticle sharpening, which is valuable when moving between users or adapting quickly in the field.

This model uses a first focal plane illuminated reticle, a practical choice for MIL-based holdovers because the reticle scale remains true throughout the zoom range. The tactical turret system is equally field-oriented: the double-turn elevation turret offers 6 mrad per turn, with a zero stop for a clear return reference after dialing. Side focus adjustment from 50 m to infinity supports precise parallax correction across varied distances. Combined with its waterproof, fogproof, shockproof, nitrogen-filled construction and 760.00 g weight, the TT315M is configured for hard use where compactness and repeatable adjustments matter as much as optical performance.

About Tangent Theta

Tangent Theta was established in 2013 in Halifax, Nova Scotia, Canada. The company focuses on designing and manufacturing precision riflescopes for professional marksmen, with production carried out at its Halifax facility. Its product line centers on purpose-built optics in magnification classes such as 3–15x, 5–25x, and 7–35x, reflecting a clear specialization in precision shooting rather than a broad sporting-optics catalog.

Tangent Theta riflescopes are used by professional marksmen, competitive shooters, recreational hunters, and recreational shooters, but the brand’s identity is rooted in exacting mechanical control and dependable tracking for serious field use. International distribution is handled by Armament Technology Incorporated, and the company’s reputation in the riflescope segment is closely tied to Canadian manufacture, disciplined turret design, and optics intended for repeatable performance in demanding tactical and long-range environments.

Main Features

• Magnification: 3.00 x - 15.00 x
• Objective lens diameter: 50.00 mm
• Main tube diameter: 30 mm
• Reticle position: 1. focal plane - FFP
• Reticle illumination: Yes, red
• Turret type: Tactical
• Zero stop: Yes
• Turret turns: DT - Double Turn
• Turret rotation direction: CCW
• Elevation adjustment range: 11.62 mrad / 39.00 MOA
• Windage adjustment range: 11.62 mrad / 39.00 MOA
• Elevation per turn: 6 mrad
• Eye relief: 90.00 mm
• Field of view: 12.80 m/100m - 2.80 m/100m
• Parallax adjustment: Yes - side focus
• Parallax adjustment range: 50 m - inf.
• Diopter range: - 3.0 / + 2.5 dpt
• Exit pupil: 11.50 mm - 3.50 mm
• Lens coating: Fully Multicoated
• Length: 347.00 mm
• Weight: 760.00 g
• Filled with: Nitrogen
• Waterproof: Yes
• Fogproof: Yes
• Shockproof: Yes
• Made in: Canada

Warranty

Tangent Theta backs the 3-15x50 Model TT315M with a 10-year warranty. This stated warranty period supports the scope’s role as a hard-use precision optic intended for long-term service.