Vortex Viper PST GEN II 3-15×44 EBR-4 MOA

Product Description

The Vortex Viper PST Gen II 3-15×44 EBR-4 MOA is a variable-magnification riflescope designed for precision shooting from close to extended range. The 3-15x magnification range lets you transition from quick target acquisition at low power to detailed long-range work at full magnification. The EBR-4 MOA reticle provides holdover reference points calibrated in minutes of angle, giving you precise aiming solutions at every power setting.

This optic suits bolt-action rifles, precision gas guns, and hunting platforms where a single optic needs to handle multiple distances. The 44mm objective diameter balances light transmission with a relatively low mounting height.

Shooters who dial elevation for distance or hold using reticle subtensions will find MOA adjustments align naturally with ballistic calculations and rangefinding tools.

Key Facts

• Brand: Vortex
• Model: Viper PST Gen II 3-15×44 EBR-4 MOA
• Magnification Range: 3-15x
• Reticle Type: EBR-4 MOA
• SKU: vortex_viper_pst_gen_ii_PST-3151

What the 3-15x PST Magnification Range Gives You

A 3x low end keeps both eyes open and the field of view wide enough for moving targets inside 100 yards. The 5:1 magnification ratio means you can dial up to 15x for detail work at distance without swapping optics. That span covers everything from close hog work to paper at 600 yards or more, depending on your rifle and load.

The PST Gen II series sits between Vortex’s entry-level scopes and their top-tier models. It delivers features precision shooters need—exposed turrets, a first focal plane or second focal plane reticle depending on version, and glass quality that holds resolution across the magnification range—without the cost of a full custom optic.

Understanding the EBR-4 MOA Reticle

The EBR-4 reticle uses a hash-mark grid calibrated in minutes of angle. One MOA equals roughly one inch at 100 yards, so holdovers translate directly to your scope’s turret adjustments. If your turret clicks are 1/4 MOA, every four clicks move your point of impact one hash mark on the reticle.

This system works well for shooters who prefer Imperial measurements and want the reticle to match their turret values. If you range a target at 500 yards and your ballistic app gives you a 12 MOA drop, you count down 12 hash marks or dial 12 MOA on the turret. No conversion math required in the field.

Pairing the Viper PST Gen II with Mounts and Rings

A 44mm objective lens requires rings tall enough to clear your barrel or rail without forcing the scope too high. Most shooters use medium-height rings on a flat-top AR or a Remington 700-style action. The exact height depends on your barrel diameter and whether you want a chin weld or a slightly higher cheek position.

Check ring clearance with a measuring tool or call for advice if you are unsure. Our riflescopes page has additional optics that span different objective sizes and magnification ranges if you need to compare fit.

Buying from Western Sport in Roanoke, TX

Western Sport is a licensed FFL/SOT dealer in Roanoke, Texas, serving the North Texas and DFW area since 2007. Owner and gunsmith Lance Rankin handles transfers, special orders, and gunsmithing services on site. Call 817-393-4000 to confirm specifications, place an order, or discuss mounting and setup for your rifle.

Frequently Asked Questions

Q: What does the 3-15x magnification mean on the Viper PST Gen II?

A: The 3-15x magnification means the scope offers a variable power range from 3 times to 15 times magnification. You adjust the magnification ring to zoom between those two settings, giving you a wide field of view at 3x and detailed target resolution at 15x.

Q: Is the EBR-4 MOA reticle first focal plane or second focal plane?

A: Call 817-393-4000 to confirm the focal plane type for this specific model. Vortex produces both first and second focal plane versions of the PST Gen II, and the reticle behavior changes depending on which you choose.

Q: What rifles work well with the Vortex Viper PST Gen II 3-15×44?

A: The 3-15×44 configuration pairs well with bolt-action precision rifles, AR-10 platforms, and hunting rifles chambered in calibers from .223 to magnum cartridges. The magnification range suits shots from inside 100 yards out to 600 yards or more, depending on your cartridge and shooter skill.

Q: How do I mount the Viper PST Gen II on my rifle?

A: You mount the Viper PST Gen II using a two-piece or one-piece ring set that fits your rifle’s rail or receiver. The 44mm objective typically requires medium-height rings, but exact height depends on your barrel profile and action type. Western Sport can help you select the correct rings when you order.

Q: Can I use the EBR-4 MOA reticle for holdovers without dialing turrets?

A: Yes, you can hold over using the hash marks on the EBR-4 MOA reticle instead of dialing elevation. Each hash mark represents one MOA of adjustment, so if your ballistic data says you need 8 MOA of drop compensation, you hold 8 hash marks low on the reticle and send the shot.

Q: How do I order the Vortex Viper PST Gen II from Western Sport?

A: Call 817-393-4000 to place an order or visit our shop online. Western Sport is a licensed FFL dealer in Roanoke, TX, and can handle transfers, special orders, and any questions about compatibility with your rifle or intended use.

Additional information