Vortex Crossfire II vs Diamondback: which should you buy?

By the OpticVerdict Editorial Team.
Research-based comparison · Updated 2026-08-20

How this comparison was made: a research-based comparison from retailer specifications, expert reviews and verified owner feedback. Every price, reticle option and owner rating below was re-read on the retailer's own product pages on August 15, 2026, which is how we found that the standard Diamondback is not carried at all and that the cheap Diamondback Tactical price belongs to a special edition. We have not bench-tested these side by side; verdicts are our editorial opinion. See how we evaluate.

First, the confusing part: there are two Diamondbacks and you can only buy one

Searches for "Crossfire II vs Diamondback" hide a fork, because Vortex sells two very different Diamondbacks. The standard Diamondback is a second-focal-plane hunting scope in the same class as the Crossfire II, just a tier up: reviewers consistently note clearer glass and a wider field of view than the Crossfire II, though its eye relief runs a little tighter. The Diamondback Tactical is a different animal: first focal plane, higher magnification, a 30mm tube and exposed turrets built for dialing at long range.

Here is the part most comparisons of these two do not tell you, and it decides the whole page. At our August 15, 2026 check the retailer we link to did not stock a single standard Diamondback riflescope. Searches for the 3-9x40, the 3.5-10x50 and the 1.75-5x32 return nothing orderable, and the one standard listing still up, the 4-12x40 AO, carries the retailer's own line that the model has been discontinued by Vortex. Vortex still shows the standard Diamondback family on its own website, so the scope has not vanished from the world, but a comparison is only useful if you can act on it. We had this page recommending the standard Diamondback as a "same-class hunting upgrade" with no price and no link, which was a recommendation nobody could take.

So the practical question is not "Crossfire II or Diamondback" but "the Crossfire II, or a different kind of scope entirely". That is a fair trade to consider, and it is what the rest of this page compares. If what you want is a straight glass upgrade in the same 3-9x40 shape, the comparison worth reading instead is our Crossfire II against the Leupold VX-Freedom, because both of those are on sale.

Looking for binoculars rather than riflescopes? Crossfire and Diamondback are binocular lines too, and there the step up is the Diamondback HD, with dielectric and phase-corrected prisms and a magnesium chassis. Start with our best binoculars for hunting guide.

Crossfire II 3-9x40: the budget baseline

Our budget pick at around $130 is the value benchmark of entry scopes: bright daylight glass, forgiving 3.8 to 4.4 inch eye relief, a single-piece aluminum tube that holds zero under heavy recoil, and the VIP warranty. It is a second-focal-plane, capped-turret, sight-in-and-hunt scope, and for deer inside 300 yards it does everything most hunters need. Its honest limits: glass softens at the edges toward 9x, and there is no dialing or parallax adjustment. Owners rate it 4.7/5 across 234 reviews.

Two reticles, one price. This scope is sold with a V-Plex or a Dead-Hold BDC reticle, part CF2-31005 and CF2-31007, at the same price. If holdover marks are the reason you want this scope, that is the part number to check before you order, because nothing in the price will tell you which reticle is in the box.

Diamondback Tactical 6-24x50: check the part number before you check the price

If the reason you are comparing to a Diamondback is that you want more reach, the Diamondback Tactical 6-24x50 is the upgrade that actually changes what you can do: true first-focal-plane precision, holdovers that stay accurate at any zoom, an EBR-2C Christmas-tree reticle, exposed turrets to hold and dial, and a rare 10-yard side parallax that makes it a genuine precision-rimfire and long-range learning tool. Treat it as a 6-18x in practice, since glass softens toward 24x.

But the price depends entirely on which listing you land on, and this is the single most useful thing on this page. The retailer sells the scope twice:

Same optical system, different finish and packaging. The OPMOD versions are the retailer's own exclusives in tan and grey, and they are the only reason this scope is ever described as a first-focal-plane optic for under three hundred dollars. Against the Crossfire II, that is a difference between paying roughly a hundred and fifty dollars more and paying roughly three hundred and twenty dollars more, which is a different decision. We card the OPMOD because it is the cheaper of the two, but we are naming the standard price so you are not surprised by it. Owner ratings sit at 4.8/5 from 250 reviews on the OPMOD listing and 4.7/5 from 194 on the standard one.

Side-by-side: Crossfire II vs Diamondback Tactical

Which one should you buy?

• Budget daylight hunting inside 300 yds: Crossfire II 3-9x40. Best value entry scope.
• Reaching farther, dialing, precision or rimfire: Diamondback Tactical 6-24x50, the more meaningful step up. Take the OPMOD colour if the price matters, since it is the same optic for roughly a hundred and seventy dollars less.
• You wanted the holdover reticle: the Crossfire II 3-9x40 is sold in Dead-Hold BDC as well as V-Plex at the same price, so order by part number rather than by price.
• A same-class glass upgrade in the same 3-9x40 shape: not the standard Diamondback, which our retailer does not stock. Read Crossfire II vs Leupold VX-Freedom instead.
• General hunting, premium glass: consider the Leupold VX-Freedom.

FAQ

New to focal planes? Read FFP vs SFP. Or see all four picks in our best rifle scopes 2026 guide.