Viper PST Gen II 3-15x44 FFP

Viper® PST Gen II
3-15x44 FFP

Viper PST Gen II 3-15x44 FFP is rated 4.5 out of 5 by 74.
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MSRP $1,199.99


The Viper PST Gen II brings you all the features of elite, top-tier tactical optics, with exceptional performance at a fraction of the cost. The 5x optical system delivers bright and crisp images across the zoom range with an impressive field of view for quicker target acquisition. Exposed turrets provide ample range of adjustment for dialing long-range shots, are available in MOA or MRAD and always match the reticle. After a day of dialing at extended ranges, the integrated, mechanical, RZR zero stop will bring you back to your exact zero every time with positive engagement.

Build Your Own Custom Turret - Kenton Industries

Viper PST Gen II 3-15x44 FFP Dimensions (in inches)
Product Dimensions Image
L1 L2 L3 L4 L5 L6
14.3 2.32 2.59 6.56 4.15 3.59
H1 H2
2.08 1.81
Magnification 3-15x
Objective Lens Diameter 44 mm
Eye Relief 3.4 inches
Field of View 41.2-8.6 ft/100 yds
Tube Size 30 mm
Turret Style Tactical
Parallax Setting 20 yards to infinity
Length 14.3 inches
Weight 28.1 oz




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 Allows for intricate reticle design. Protected between two layers of glass for optimum durability and reliability.
Illuminated Reticle Provides precise aiming under low-light conditions


Tube Size 30 mm diameter provides maximized internal adjustment and strength.
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 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 hard-coat anodization provides a low-glare matte surface and 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.


RZR™ Zero Stop Rapid Zero Return (RZR) feature stops the turret from dialing below sight in range using rugged steel components. Internal mechanisms stay free of sand, dirt, dust, moisture and other foreign materials - even when setting the zero-stop position.
Precision-Force Spring System Uses premium components in the erector-spring system to ensure maximum repeatability and ease of adjustment.
Precision-Glide Erector System This system ensures the components in the zoom lens mechanism glide smoothly and cleanly through all magnification ranges.


Radius Bar Fiber optic turret rotation indicator provides a highly visible and tactile point of reference for turret rotations.
Fast Focus Eyepiece Allows quick and easy reticle focusing.
Built-In Accuracy Features Matching (MRAD or MOA) turrets and reticles facilitate fast and accurate shooting at extended ranges. The patented fiber optic Radius Bar visually assists tracking turret rotations.


Please select Reticle.


Rated 5 out of 5 by from Awesome Optic! I have the SPT Gen II on my 308 Rem 700 and it's awesome. Dialing in the ranges could not be easier and a 600 yard shot is no longer out of range. Now if I miss I can't blame it on the gun or optic, it's all me. The glass is clear and bright, not too heavy and the illuminated reticle is very handy when the light begins to fade. The only thing I would change is to make the illuminated part time out after a few hours to save battery life. I have left it on by accident a few times and then get out into the field with a dead battery.
Date published: 2017-12-08
Rated 5 out of 5 by from Amazing customer service! I purchased a vortex viper pst FFP 3-15x44 about a month ago. When I got around to mounting it I began to notice some issues with the illuminated reticle. I called vortex and they said send it in. During the phone call I received a few emails one with a label to send the optic and a confirmation email. I sent the optic out a day later on a Thursday. Once they received the optic I got an email. Then Tuesday of the next week I got a brand new optic due to a wiring problem in my old optic! I am extremely surprised and happy with the customer service of vortex. I have an will continue to recommend vortex to all of my friends.
Date published: 2019-05-01
Rated 4 out of 5 by from Really Clear I have been enjoying this scope on my Tikka CTR .308 My primary use is for hunting and the illuminated reticle is a great benefit at the low light times of the hunt. With Vortex's QR. base, this scope has enough range on the reticle to reach out to 1100 Meters without needing to hold-over the target. I had the opportunity to compare my rifle scope to a spotting scope last week when we saw a moose in the mountains at 600 Meters distance, and admittedly we had better success viewing points of the animal through my PST 2, at 15X then we did thourgh my friends Diamondback spotting scope on 45X. All that to say I was pleased with my optics. My friend, after trying my gun said "you could shoot the needles off a pine tree with this scope".
Date published: 2017-11-23
Rated 4 out of 5 by from Very nice optic overall Purchased this optic a few weeks ago to top off my 18.5 inch .308 build. I currently have about 200 total rounds through the system and I was able to take it out to 960 yards this past weekend with very good results. Optic is working as well as I had hoped. The glass is nice and clear, even at extended ranges. The adjustments are true and the zero stop works as intended. The magnification range of the 3-15x44 matches the intended range of the rifle perfectly. I only have one minor complaint and that is the scope cover that is included. It seems it would be more at home on a $100 optic than a $1000 optic. I get that Vortex would like me to purchase their scope caps separately but I feel that a high end scope should include something nicer. All and all I'm very happy with the purchase.
Date published: 2019-05-31
Rated 1 out of 5 by from Vortex PST gen 2 FFP 3-15x44 This is not a great optic! Vortex is selling made in china scopes at a premium price. The finish on all the knobs not very durable. (they will send you new knob covers if you ask) But this is not a problem you should have when you spend a $1000! The FFP is nice to have. But think twice before buying. Its heavier than anything in its class with little upside to the heavy weight of the scope. There are many better options for the shop around and find a quality Made in the U.S.A optic. Ps. The lenses on this scope will fog up very easy, when its cold cool or the humidity is above 80%. I feel ripped off!
Date published: 2019-01-03
Rated 2 out of 5 by from Black Dots I perchest this Scope A month ago for my Browning X bolt 30-06. I Put 40 rounds through the rifle with the Scope on it, the Scope then Started to Develop black spots inside the scope in different spots on the reticle. At times and against certain targets the sub tensions are difficult to see. So i just sent it back to Vortex for servicing. In all my experience with the scope has been disappointing. Customer Service was really helpful and pleasant to talk to. Not happy About wasting more money on getting the Scope remounted and spending more money on ammo to sight in the scope all over again, or waiting for my scope to be returned.
Date published: 2020-01-15
Rated 5 out of 5 by from Rugged and clear! I was in the market for an optic to put on my scar 17 that would last, as these guns are known to eat optics. Enter the viper pst gen ii. Built like a tank, I don’t think I’ll ever have an issue with this optic on the scar, and even if I did, you get the fantastic vip warranty with it! the glass is extremely clear, and the red dot functions on this are exceptional. This is a direct competitor to the Leupold mk 6 in my opinion, and it comes in at about half the cost! I definitely can’t recommend this enough!
Date published: 2018-03-29
Rated 4 out of 5 by from Previous Review Revised I'd like to post a revision to a previous review I had written. In my first review I gave this scope 1 star based on several criticisms I had. However, just recently I was able to compare a Gen 2 PST to a Gen 1, side by side while shooting. I will have to admit that I was wrong in my previous review. The Gen 2 is superior to the Gen 1 in almost every aspect. The glass is a littler clearer. The field of view is MUCH larger. And the reticle is actually the same size when on the same power. The turrets seem better, and the scope seems well built. The only real criticism I have left is the weight. The Gen 2 is heavier than the Gen 1, but hopefully it is more durable. I was also able to compare the PST Gen 2 along side several other "Big Name" manufacturer's scopes in a similar price range. These "Big Name" brands, which I won't name here, often boast about having their scopes used by the US military etc. However, when comparing these scopes side by side with the PST Gen 2, it was obvious to me that the Vortex was the better scope. The glass was just as good. The turrets were the best of the bunch. And overall the Vortex seemed to be of the best quality. Putting the PST Gen 2 in perspective like this when compared to other scopes really made me want to revise my previous review. In fact I'd say this scope is great. I plan on buying a couple.
Date published: 2018-07-13
Rated 5 out of 5 by from Very Pleased! Once we got through the backorder, i was very pleased. It was well worth the wait! Now i am not a professional shooter, nor do i know all the ins and outs of glass. But i do know it adjusts well to my eye. It does not fatigue my eye like others do. Its very clear for my purposes. And i think it will serve my 6.5 Grendel well. The guys at Vortex are great! I support them 100% just as they support us veterans. I am local to Vortex and love stopping in at the shop. Customer service is amazing and hopefully ill never have to experience how great the VIP is!
Date published: 2017-09-23
Rated 5 out of 5 by from Great scope Purchased mine in April. Absolutely love everything about it. Tuff, durable, crisp and clean... flawless
Date published: 2018-03-08
Rated 1 out of 5 by from Fogs up Very interesting...I have the 3-15x44 FFP PST Ten 2. I put this on a Tikka 300WM for an elk hunt in December, in northern Arizona. Opening day I find a herd of elk and my scope is completely fogged up. The interesting part is that others are reporting the same. For the price of admission, this scope should not fog up to the point that it is not useable. I was always a Vortex "fanboy" until this experience. Definitely going with Leupold from here on out. Tracking and zero are not precise either on the 300wm. This is using Seekings percision rings. Just not happy with Vortex lately.
Date published: 2020-05-13
Rated 5 out of 5 by from Got my first deer! That’s right I got my first deer with this scope. Luckily this scope goes all the way down to 3 because I ended up taking my deer down at 20 yards. Going from 3x to 15 is quick and smooth. I put this scope through the test in the snow in PA and Missouri, no fogging or any issues. The light up redical helps those early morning hunts and late evenings. I bought the scope mostly because of the warranty, which has come in handy with other products that I bought from vortex. Con: tad bit in the heavier side
Date published: 2018-03-11
Rated 5 out of 5 by from Great Value! Awesome Clarity for the price. I purchased my PST Gen II several months ago for my Daniel Defense .308. I was attracted to this scope because of how pleased I’ve been with other vortex optics, the features, and glass clarity for the price of the Optic. I’m not disappointed at all. The scope feels and looks great on the AR-10 platform. Not too big, has plenty of magnification and great options for tactical/precision shooting. Though I haven’t spent much time behind the Setup yet, I’m greatly pleased with Optic for my intended use.
Date published: 2019-05-29
Rated 5 out of 5 by from Crystal clear Purchased this scope for my Christensen arms ridgeline 300 win. Scope is crystal clear. Very forgiving eyereleif. Focus is smooth and very precise. Solid turrets. Great scope. Love my gen 1 one but these gen II’s addresses the few few issues I have with the first gen’s.
Date published: 2017-12-02
Rated 5 out of 5 by from Great option for longer barreled AR I picked up this up to use on a 20" barreled .223 AR15 to hunt deer, coyotes, and eventually prairie dogs. 15x is plenty of zoom for the caliber and the distances I shoot, and the reticle matches my 4.5-27x56 that sits on my 6.5CM bolt gun to keep things familiar.
Date published: 2017-11-02
Rated 5 out of 5 by from AMAZING RETICLE I got a really good deal on this scope and have since put it on a 22lr to compete in NRL22. I really enjoy the capabilities of the scope and the features it offers. It also has an amazing reticle if I haven't said that yet!
Date published: 2019-05-31
Rated 1 out of 5 by from Not great Fogs up very easy! More than any scope I've ever used! Just not as great as all the hype. Not worth the money! Buy another brand! Should offer refunds.This is not "V.I.P" treatment.
Date published: 2018-11-10
Rated 5 out of 5 by from Perfect Match for Me I have the PST II in 3-15x44 FFP on a Barrett Fieldcraft 308, and the PST II in 5-25x50 FFP for a Winchester Model 70 Featherweight 300 Win Mag. I have been very pleased with the performance, ease of use, and ruggedness of these optics. Though heavy, that is offset by pairing them with lighter guns; I have the scope performance I want, with the overall setup weight that I find acceptable. I have shot with these scopes on several other rifles prior to purchase, and on out to 1000 yards and have been happy with with glass performance and adjustments.
Date published: 2019-05-28
Rated 5 out of 5 by from My new favorite Have had this scope mounted on an x-1 RRA all summer and it has performed flawlessly!
Date published: 2017-09-21
Rated 5 out of 5 by from Extremely Accurate I bought this Vortex Viper PST Gen II 3-15x44 in January to go on my first long range competition rifle, and it has been outstanding. At first sight in your supposed to lower the elevation all the way down and start from there. After getting on paper my first shot was 21.5 MOA low and 8 MOA right at 100 yards. I dialed the correction and hit dead center with the next round. I did a tracking test with it and it performs perfectly. The turrets have good tactile and audible clicks. The zero stop works flawlessly, and is easy to set up once sighted in. The parallax adjustment works as it should, and the lower magnification if this is more than enough for long range shooting. I haven’t wanted more adjustment yet. The reticle is well thought out and designed and precise whe it comes to measuring target size and any misses for correction as well. This scope allowed me to go to the range on the first day and get consistent multiple hits on target from 400 to 1150 with a factory .308. I’ll be adding one to my 25-06 as well now. Also I know scope rings are a constant question mark when figuring out what height to use, I’m running a heavy varmint contour on a 20moa rail and the Vortex precision rings in .87 height were spot on leaving me a 3/8 gap between scope and barrel.
Date published: 2018-03-31
Rated 1 out of 5 by from Gen 1 was much better. Won't buy another Gen 2 I own two Gen 1 PST's and like them alot. However, I think Vortex has ruined the PST line with the Gen 2. 1) The reticle is too small and fine to be used on low power. I have a Gen 1 PST in FFP and it's reticle is bigger than the Gen 2. Vortex has always had pretty thin reticles but they have always at least been decent. With the Gen 2 the reticle is barely visible on 3x depending on the background. If it was offered in SFP I'd probably get that one since the reticle would at least be bigger. Unless this thing is always going to be dialed up for long distance I would not recommend. 2) This thing weighs a TON compared to the Gen 1's. I can only hope they are more durable now than before. Really that's the only justification for adding so much weight to a scope. This Gen 2 is like boat anchor. It is not a good option for someone looking to save weight on their rifle. 3) The illumination dial is very hard to turn. Much harder than the Gen 1's. Not sure why this change was necessary. They do offer a SFP version in MOA/MOA which is probably what I would buy if I was forced to own this scope. But I really want a MIL/MIL since that's what my other scopes are. Vortex needs to increase the size/thickness of the reticle or offer SFP versions. I'd be fine with FFP if the reticle was visible on 3x. They also need to shave a bunch of weight off this thing and fix the illumination knob. I used to think Vortex was my go-to manufacturer for tactical scopes, but since they've ruined the PST I will be looking for other manufacturers. I returned my Gen 2 to retailer I bought it from.
Date published: 2018-02-09
Rated 5 out of 5 by from Not too much, not too little, just right. I have the 3-15x44 with mrad. I've used this scope since it came out and it has been outstanding. It has taken a few deer but mostly used at the range. Rifle with scope have taken a few spills and my zero has not moved at all. Adjustments are very precise. I'm glad i got the 3-15 because im able to use it hunting at closer ranges the 3 power isnt too much in the woods. But the 15 power is really nice at distance at ranges. The only thing i would recommend getting the throw lever due to the magnification ring being very tight.
Date published: 2019-05-04
Rated 5 out of 5 by from My new favorite! This is easily my new favorite scope. Love the 3x15 power great for hunting. The illuminated reticle is awesome at prime time.
Date published: 2017-08-04
Rated 1 out of 5 by from Really nice clarity and features but... While zeroing my brand new scope, after five rounds of 300WM, the parallax side focus died.
Date published: 2017-08-14
Rated 1 out of 5 by from I hate this thing! I do not like this optic! It does not perform very well, It tracks horribly. It even fogs up easily. I have sent it back once, Vortex sent me a new one and it has the same problems! What is going on with quality control. I have removed this optic from the rifle it was on, now The rifle is sporting a $500 leupold that out performs the vortex in every aspect. The quality of the leupold far surpasses the Vortex. And the tracking is true. I would like a refund and get away from vortex. But I doubt that will happen.
Date published: 2020-05-14
Rated 5 out of 5 by from Awesome value Tossed this on my trainer 22lr and couldn't be happier. Tracks well, glass is clear. Love that the reticle matches my Razor. So much easier to set zero than the Gen 1s and its great to know Vortex is just down the road if any issues arise.
Date published: 2019-05-28
Rated 4 out of 5 by from Great NRL22 Scope I originally picked up this scope for my hunting rifle but it is a bit heavy for a mountain hunting scope. Now it lives on my NRL22 rig. The turrets have been reliable and consistent. It’s the perfect magnification range for those comps.
Date published: 2019-05-28
Rated 5 out of 5 by from A Great Piece of ... Glass! She's a sleek, sexy piece of glass. When mounted... on top of a Remington, she becomes lethal. She provides comfort with her clarity and satisfaction with her accuracy. Easy on the eyes and wallet, she's the perfect date!
Date published: 2019-05-13
Rated 5 out of 5 by from One of the best for the $ I've been using this scope for a while now and I would have to say the so far it has lived up to the hype. For the price point it is hard to beat the quality and the warranty
Date published: 2019-05-28
Rated 5 out of 5 by from Very simple, easy to use scope with precision No really issues with this scope. Glass is as good as anything else in this class of scope that cost twice as much. The 15x version of this scope is great at full mag you can see the entire reticle subtensions of the ebr2c reticle. Huge field of view, and great resolution. You almost dont need to use the parallax on this scope past 300y as long as it is at 300y or further. I really like it. The only thing I would change is the zero stop. I just dont like it as much.
Date published: 2019-05-13
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