Primary Arms SLx 1-6x24 SFP Gen IV ACSS Nova
The Primary Arms SLx 1-6x24 SFP Gen IV ACSS Nova is a 1-6×24 SFP scope on a 30 mm tube with a ACSS Nova Fiber Wire reticle, illuminated and 0.1 MRAD clicks. Across its range the exit pupil runs from an estimated 24 mm down to 4 mm at 6×, where the twilight factor is 12. Its 120 ft field of view at 1× is 2nd-widest of the 10 LPVOs here.
- Approx. price
- ~$350
- Magnification
- 1-6×
- Objective
- 24 mm
- Weight
- 17.9 oz
A carbine that has to work at 1× up close and still reach out to a few hundred yards
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Derived optics
estimated- Exit pupil
- 24–4 mm (1×–6×)
- Twilight factor
- 12 at 6×
Exit pupil and twilight factor are computed from the published magnification and objective diameter, not measured. Real exit pupil is also capped by the erector at low magnification, and coatings and glass quality move low-light performance in ways the formula cannot see — read these as comparisons between layouts, not verdicts on scopes.
Specifications
Manufacturer-published figures, read from primaryarms.com (travel published as 120 MOA, converted to MRAD). MOA/MRAD conversions use 3.438 MOA per mil.
- Magnification
- 1-6×
- Objective lens
- 24 mm
- Focal plane
- SFP
- Reticle
- ACSS Nova Fiber Wire
- Illuminated
- Yes
- Turret unit
- MRAD
- Per click
- 0.1 MRAD (0.36″ at 100 yd)
- Elevation travel
- 34.9 MRAD (≈120 MOA)
- Windage travel
- 34.9 MRAD
- Turrets
- Capped
- Field of view
- 120–20 ft at 100 yd
- Tube
- 30 mm
- Length
- 10.4″
- Weight
- 17.9 oz
- Warranty
- Lifetime
Features
- SFP
- MRAD
- 30 mm tube
- Illuminated
- Capped turrets
- Fixed parallax
- True 1×
- Lifetime warranty
For it, on paper
- + 120 ft field of view at 1x, among the widest in the 1-6x class for both-eyes-open shooting
- + Fiber-wire Red Dot Bright illumination with 11 settings on the center chevron
- + Capped, tool-adjustable low-profile turrets that will not get knocked off zero on a carbine
- + Throw lever is integrated into the magnification ring, nothing to bolt on
- + Lifetime warranty
Against it, on paper
- − 17.9 oz before the mount, no lighter than pricier 1-6x LPVOs
- − SFP reticle: the ACSS Nova ranging and holdover subtensions are only true at 6x
- − Capped 0.1 MRAD turrets are for zeroing only, there is no zero stop or exposed dialing
Compare the SLx
Related scopes
Sig Sauer Tango-MSR 1-6x24 SFP
- Weight
- 18.5 oz
- Travel
- 100 MOA
- Exit pupil
- 4 mm at 6×
Trijicon Credo 1-6x24 SFP
- Weight
- 18.9 oz
- Travel
- 100 MOA
- Exit pupil
- 4 mm at 6×