The Viper PST (Precision Shooting Tactical) riflescope boasts features associated with top-tier riflescopes, yet comes in at a street price under the $1,000 mark. Matching reticle and turret measurements allow accurate, fast dialing of shots. The one-piece 30mm tube, precision-machined from a single solid block of aircraft-grade 6061-T6 aluminum, offers ample windage and elevation adjustment. Born from an intimate understanding of riflescope design, forward-thinking engineering, and open ears to a market incredibly vocal about what it wants in a riflescope, the Viper PST series delivers the performance and features tactical shooters demand at an economical price.
Features:
Optical Features:
| XD Lens Elements | Extra-low dispersion (XD) glass increases resolution and color fidelity, resulting in crisp, sharp images. | 
| XR Fully Multi-Coated | Proprietary coatings increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces. | 
| First Focal Plane Reticle | Scale of reticle remains in proportion to the zoomed image. Constant subtensions allow accurate holdover and ranging at all magnifications. | 
| Glass-etched Reticle | Protected between two layers of glass for optimum durability and reliability. | 
| Illuminated Reticle | Provides precise aiming under low-light conditions. | 
Construction Features:
| Tube Size | 30 mm diameter. | 
| Single-Piece Tube | Maximizes alignment for improved accuracy and optimum visual performance, as well as ensures strength and waterproofness. | 
| Aircraft-Grade Aluminum | Constructed from a solid block of aircraft-grade aluminum for strength and rigidity. | 
| Waterproof | O-ring seals prevent moisture, dust and debris from penetrating the riflescope for reliable performance in all environments. | 
| Fogproof | Argon gas purging prevents internal fogging over a wide range of temperatures. | 
| Shockproof | Rugged construction withstands recoil and impact. | 
| Hard Anodized Finish | Highly durable low-glare matte finish helps camouflage the shooter's position. | 
| ArmorTek | Ultra-hard, scratch-resistant coating protects exterior lenses from scratches, oil and dirt. | 
| Tactical-Style Turrets | Exposed turrets provide fast, accurate and easily read elevation and windage adjustments. | 
| Side Focus | Adjustment located on riflescope's left side and is easily accessible from shooting position. Provides optimal image focus and parallax removal. | 
Internal Mechanism Design Features:
| CRS Zero Stop | Customizable Rotational Stop (CRS) aids in return to zero after dialing temporary elevation correction. | 
| Precision-Force Spring System | Uses premium components in the erector-spring system to ensure maximum repeatability and ease of adjustment. | 
| Precision-Glide Erector System | Uses premium components in the zoom lens mechanism to ensure smooth magnification changes under the harshest conditions. | 
Convenience Features:
| MAG-View Fiber Optic | Provides a highly visible reference point for the magnification setting. | 
| Radius Bar | Fiber optic turret rotation indicator provides a highly visible and tactile point of reference for turret rotations.?US Patent 7,937,879 | 
| Fast Focus Eyepiece | Allows quick and easy reticle focusing. | 
 
 
 
Specifications:
| Magnification | 4-16 x | 
| Objective Lens Diameter | 50 mm | 
| Eye Relief | 4.0 inches | 
| Field of View | 27.4-7.4 feet/100 yards | 
| Tube Size | 30 mm | 
| Turret Style | Tactical CRS Zero Stop
 | 
| Adjustment Graduation | 1/4 MOA | 
| Travel per Rotation | 12 MOA | 
| Max Elevation Adjustment | 75 MOA | 
| Max Windage Adjustment | 75 MOA | 
| Parallax Setting | 50 yards to Infinity | 
| Length | 13.7 inches | 
| Weight | 22.4 ounces | 
| Product Manual (PDF) | Download | 
| Product Manual 2 (PDF) | Download | 
Included In the Box:?
- 4-inch sunshade
- CR2032 battery
- CRS shims
- Lens cloth
- VIP Unconditionl Lifetime Warranty
Dimensions:

| LENGTHS | 
| L1 | L2 | L3 | L4 | L5 | L6 | 
| 13.7 | 2.1 | 2.2 | 5.6 | 4.2 | 3.6 | 
 
* Dimensions measured in inches.
Reticle:

EBR-1 RETICLE (MOA)
The EBR-1 (Enhanced Battle Reticle) is a hashmarked ranging reticle using MOA based subtension lines for ranging, holdover, and windage corrections. First focal plane reticle.
Subtension detail for the Viper PST 4-16x50 FFP riflescope with EBR-1 MOA reticle.>
Note
Read the?Viper PST 4-16x50 FFP Riflescope with EBR-1 MOA Reticle?manual for details on how to effectively determine range, holdover, windage and moving lead corrections.