Tangent Theta is rifle scope brand owned by Armament Technologies, a Canadian defense supplier that also distributes Elcan prism scopes and the SAI LPVO. Tangent Theta are top-tier optics, comparable to Schmidt & Bender and Zero Compromise Optics (ZCO). I include SAI in the listing below, although technically it’s a sister brand to Tangent Theta. Tangent Theta and Elcan optics are assembled in Canada, the SAI LPVO is assembled in Japan.
The TT315M and TT315LRH have 30mm tubes. The TT315P has a 34mm tube (and more elevation adjustment) and more sophisticated turrets.
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The optics database contains most firearm optics for sale in North America, including complete offerings of 53 major brands. Features: comprehensive brand coverage, all specs in standard units, FOV at comparison powers, reticle diagrams, user manuals, country of assembly, and OEM factory.
| Optic Type | Optics | Reticles |
|---|---|---|
| Micro reflex RDS | 75 | 93 |
| Reflex red dot and holographic | 163 | 212 |
| Magnifier | 34 | 0 |
| Prism scope | 62 | 135 |
| Fixed-Power | 52 | 92 |
| FFP | 348 | 1113 |
| SFP | 793 | 1827 |
| Total | 1527 | 3472 |
| New 2020 | 221 | |
| New 2021 | 56 |
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Tangent Theta and SAI rifle scopes
| Display | Brand-Line | Price | MagASC | MagDESC | Type | Weight |
|---|---|---|---|---|---|---|
NEW 2021SAI SAI6 1-6×24<$1500   Features: FFP, Illuminated, Daylight-visible, CR2032, Capped, 0.1 MRAD per click, 120 MOA elev, Fixed-parallax @100, FOV ft@100yds: 116 – 20, FOV @1.1x: 106, FOV @5x: 23, 30mm tube, 10in, 18oz, Assembled in Japan by LOW Japan, New 2021 Research: AR15 | SAI-x-A060-1489-08 | 1500-A060-1489-08-SAI | A060-1489-08-SAI-1500 | 1048-A0100-08-SAI-1500 | 08-A060-1489-SAI-1500 | 1800 |
   Features: FFP, Illuminated, CR2032, Capped, 0.1 MRAD/0.25 MOA per click, 60/80 clicks per turn, 63 MOA elev, Side-focus from 50, FOV ft@100yds: 38 – 8, FOV @5x: 24, FOV @10x: 12, 30mm tube, 14in, 28oz, Assembled in Canada by Tangent Theta Research: SnipersHide | TANG-x-A150-0850-08 | 3001-A150-0850-08-TANG | A150-0850-08-TANG-3001 | 0537-A0300-08-TANG-3001 | 08-A150-0850-TANG-3001 | 2770 |
   Features: FFP, Illuminated, CR2032, Exposed, Zero-stop, 0.1 MRAD/0.25 MOA per click, 60/80 clicks per turn, 63 MOA elev, Side-focus from 50, FOV ft@100yds: 38 – 8, FOV @5x: 24, FOV @10x: 12, 30mm tube, 14in, 28oz, Assembled in Canada by Tangent Theta | TANG-x-A150-0850-08 | 3001-A150-0850-08-TANG | A150-0850-08-TANG-3001 | 0537-A0300-08-TANG-3001 | 08-A150-0850-TANG-3001 | 2770 |
   Features: FFP, Illuminated, CR2032, Exposed, Zero-stop, 0.1 MRAD/0.25 MOA per click, 150 clicks per turn, 117 MOA elev, Side-focus from 50, FOV ft@100yds: 38 – 8, FOV @5x: 24, FOV @10x: 12, 34mm tube, 14in, 28oz, Assembled in Canada by Tangent Theta Research: SnipersHide | TANG-x-A150-0850-08 | 3001-A150-0850-08-TANG | A150-0850-08-TANG-3001 | 0537-A0300-08-TANG-3001 | 08-A150-0850-TANG-3001 | 2770 |
       Features: FFP, Illuminated, CR2032, Exposed, Zero-stop, 0.1 MRAD/0.25 MOA per click, 150 clicks per turn, 103 MOA elev, Side-focus from 50, FOV ft@100yds: 23 – 5, FOV @5x: 23, FOV @10x: 12, FOV @25x: 5, 34mm tube, 17in, 41oz, Assembled in Canada by Tangent Theta | TANG-x-A250-0294-08 | 3001-A250-0294-08-TANG | A250-0294-08-TANG-3001 | 0190-A0500-08-TANG-3001 | 08-A250-0294-TANG-3001 | 4060 |