Hunting riflescopes
Sig Sauer Buckmasters 3-9x40: Full Specifications
Quick answer
The SIG SAUER Buckmasters 3-9x40 Riflescope lists at $125.97. Published figures: magnification 3-9x, objective lens 40 mm, tube diameter 25.4 mm. It suits a budget hunting scope from a maker with a service department.
Sig glass and a BDC reticle at a price that competes with the unbranded flood, which is the most useful thing any major maker has done in this category recently.
Every figure below is the manufacturer's own published specification, taken from the product listing and the data sheet. Where a figure is not published it is left out rather than estimated, which is why some sheets are shorter than others. Price is the listed price when this page was last compiled and it changes often.
On this page
Sig Sauer Buckmasters 3-9x40 specifications
The Sig Sauer Buckmasters 3-9x40 publishes magnification 3-9x, objective lens 40 mm, tube diameter 25.4 mm, at a listed price of $125.97.
Sourced figure
| Specification | Published figure |
|---|---|
| Magnification | 3-9x |
| Objective lens | 40 mm |
| Tube diameter | 25.4 mm |
| Focal plane | Second |
| Reticle | BDC |
Specifications above are the manufacturer published figures, taken from the product listing. Figures the maker does not publish, such as total elevation travel or exact eye relief, are omitted here rather than estimated.
What the manufacturer says about it
The manufacturer own listing bullets, quoted rather than paraphrased so you can judge the claims yourself. These are marketing copy, not independent measurement.
Sig Sauer lists 5 headline points for the Buckmasters 3-9x40, quoted here verbatim.
| Manufacturer listing point |
|---|
| BUCKMASTERS 3-9X40MM RIFLE SCOPE - The SIG SAUER Buckmasters 3-9X40mm Rifle Scope is a dependable & versatile optic choice for hunters looking to enhance their accuracy and effectiveness in the field; Featuring the high-performance 3x optical system with low-dispersion glass, this shooting scope delivers sharp & clear images across all magnification levels |
| ILLUMINATED RETICLE - Equipped with the second focal plane (SFP) Hellfire Buckmasters BDC Illuminated reticle with 6 brightness settings, this 1-inch maintube riflescope allow hunters to fine tune the reticle for shaded timber or twilight hours with ease; The Buckmasters BDC reticle has holdover dots out to 500 yards and is also compatible with the Buckmasters 1500 Rangefinder (sold separately) |
| DURABLE CONSTRUCTION - Designed for rugged outdoor use, this IPX6-rated shooting rifle scope boasts dependable waterproof, shockproof, and fog-proof performance, ensuring resistance in various weather conditions; The lay-flat flip-back lens covers are included to protect your hunting scope when not in use |
| ADAPTABILITY & PRECISION - This F2 riflescope offers a 3-9x magnification range, providing the flexibility to zoom in for detailed target acquisition or zoom out for a broader field of view; To facilitate quick and smooth magnification changes, the shooting rifle scope comes with an integrated thread-in throw lever, making it easy to adjust on the fly |
| SPECS - Magnification: 3-9x; Objective Lens Diameter: 40mm; Main Tube Diameter: 1 Inch; Reticle: Hellfire Illuminated Buckmasters BDC; Field Of View (High/Low): 11.3 to 34.1 Feet at 100 Yards; Eye Relief (High/Low): 98 to 106mm; Exit Pupil (High/Low): 4.4 to 13.3mm; Waterproof Rating: IPX6; Total Travel: >60MOA in Windage and Elevation; Travel Per Rotation: 16 MOA; Adjustment Increments: 1/4 MOA per click; Overall Length: 12.4 inches (314mm); Weight: 14.7oz (418g) |
What this optic suits
Best for: a budget hunting scope from a maker with a service department.
Category: hunting riflescopes. The honest test for any optic is whether its numbers match your rifle and the distances you actually shoot rather than whether it is a good product in the abstract. Work out what ring height you need, what exit pupil the magnification gives you and how much elevation the distance demands, using the calculators on this site, then check this model against those answers.
The closest alternatives at a similar price
Same category, nearest price. An alternative with no stated reason is filler, so each of these is here because it trades something specific against the model above.
Vortex Crossfire II 3-9x40 Riflescope, Dead-Hold BDC Reticle
$128.99 Full specificationsThe default first centrefire scope, and the reason is the warranty rather than the glass: Vortex transfers its lifetime warranty to whoever owns the scope, with no receipt and no registration, which is worth more over twenty years than a modest optical upgrade.
Best for: a first deer rifle where the scope should outlast the rifle
Check price on Amazon
Hawke Vantage 3-9x40 Riflescope
$159.99 Full specificationsHawke builds its reticles around its own published ballistic software, so the holdover marks correspond to a calculation you can run rather than to a generic curve.
Best for: a hunter who will actually use the holdover marks
Check price on Amazon
Bushnell Banner 2 3-9x40 Riflescope, DOA Quick Ballistic Reticle
$89.00The cheapest scope on this site we would actually mount on a rifle. Bushnell has been making the Banner for decades and will stand behind it, which separates it from the identical-looking unbranded listings beside it.
Best for: the lowest honest price for a working hunting scope
Check price on Amazon
Burris Fullfield E1 3-9x40 Riflescope
$169.99 Full specificationsA long-running American hunting scope with a forever warranty and a reticle with holdover marks that are actually usable rather than decorative.
Best for: a budget hunting build that still wants a real warranty
Check price on AmazonSide by side
| Model | Price | Magnification | Objective lens | Tube diameter | Focal plane | Reticle |
|---|---|---|---|---|---|---|
 SIG SAUER Buckmasters 3-9x40 Riflescope | $125.97 | 3-9x | 40 mm | 25.4 mm | Second | BDC |
| Vortex Crossfire II 3-9x40 Riflescope, Dead-Hold BDC Reticle | $128.99 | 3-9x | 40 mm | 25.4 mm | Second | Dead-Hold BDC |
| Hawke Vantage 3-9x40 Riflescope | $159.99 | 3-9x | 40 mm | 25.4 mm | Second | - |
| Bushnell Banner 2 3-9x40 Riflescope, DOA Quick Ballistic Reticle | $89.00 | 3-9x | 40 mm | 25.4 mm | Second | DOA Quick Ballistic |
A dash means the manufacturer does not publish that figure. We leave it blank rather than estimating it.
How we chose
We did not test these optics in person and we never claim to. Picks are researched from manufacturer specification sheets, published optical and ballistic formulas, and the recurring themes in verified owner reviews. Every pick is matched to a real objective diameter, a real tube size, a real ring height or a real exit pupil rather than to a price bracket, and it is placed in the tier where its capability actually belongs. Where a figure is shooter convention rather than a sourced number we label it, and where a manufacturer does not publish a figure we leave it out instead of estimating it.
Sources
- Sig Sauer published specifications for the Buckmasters 3-9x40
- Amazon product listing features and current pricing
Frequently asked questions
How much does the Sig Sauer Buckmasters 3-9x40 cost?
It was listed at $125.97 when this page was last compiled. Optics pricing moves frequently and promotional pricing is common, so treat that as a planning figure and confirm the current price before committing to a purchase or budgeting a whole setup around it.
Is the Sig Sauer Buckmasters 3-9x40 right for my rifle?
A budget hunting scope from a maker with a service department. Beyond that, the honest test is whether it physically fits and whether its numbers match the distances you shoot. Check the ring height its objective needs and the exit pupil its magnification gives before deciding.
Where do these specifications come from?
The manufacturer published figures, taken from the product listing and data sheet. We do not test products in person and we never claim to, so nothing here is a measured result. Where a specification is not published by the manufacturer it is omitted rather than estimated, which is why some sheets are shorter than others.
Will this fit my rifle and my rings?
Check three things in this order. The tube diameter has to match the rings exactly, because a 30 mm ring will not hold a 34 mm tube. The objective bell has to clear the barrel at the ring height you own. And the rail or base pattern on the receiver has to match the mount. Those three account for most returns in this category.
Is it worth buying this rather than the cheaper alternative?
Only if the thing it does better is something you actually need. The alternatives listed above each trade something specific, and on a first setup the money almost always does more good spent on a solid mount, a torque driver and a level than on upgrading the glass by one model.
Researched, not professional advice. This page is compiled from published manufacturer specifications, published optical and ballistic formulas, and owner-review consensus, not hands-on testing. Figures described as a rule of thumb are shooter convention rather than sourced numbers, and they are labelled that way wherever they appear. Ballistic figures come from a point mass model using the ballistic coefficient the maker publishes, so treat them as a starting point and confirm them on paper at a measured distance. Confirm your firearm is unloaded with the action open before you mount, level, torque or bore sight anything. Verify a zero only on a supervised range or a safe, legal backstop, know what lies beyond your target, and follow the law where you hunt and shoot, including rules on land access and permitted cartridges.