Primary Arms SLx 4-14x44mm FFP Rifle Scope - Illuminated ACSS-HUD-DMR-308/223

Manufactured by Primary Arms
SKU: PA4-14XFFP308
MPN: 610092
Manufactured by Primary Arms
225 Reviews

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This rifle scope is part of the SLx optics line. SLx optics built the reputation for innovation, reliability and value. All SLx optics undergo rigorous field-testing during development to best serve you in any environment.

The Primary Arms 4-14x44mm illuminated rifle scope was the first step into first focal plane (FFP) optics and remains one of the most cost-effective options on the market. Having a reticle stay 'true' through the entire magnification range opens a world of possibility for hunters, marksman, and competitors everywhere. Add in "built like a tank" construction and a lifetime warranty, and it's easy to see why this scope is so popular.

  • ACSS HUD DMR .308 Reticle offers a host of great features in a clean intuitive design tuned for .308 Winchester
  • Compatible with some .223 Remington loads
  • First Focal Plane reticle stays true at all magnifications
  • 6-illumination settings powered by a common CR2032 battery
  • High strength aircraft grade aluminum body
  • Side-adjustable parallax and fast focus eye piece for crisp view of the target and reticle
  • 30mm main tube compatible with your favorite rings and mounts
  • Tactile and audible 1/10 MIL windage and elevation adjustments
  • Exposed tactical style turrets with Zero Reset
  • Shockproof, waterproof, and fog resistant
  • Parallax adjusts from 15 yards to infinity!
  • Excellent glass clarity

At the heart of the 4-14x44mm rifle scope is the advanced first focal plane ACSS HUD DMR .308 reticle. Tuned specifically for popular .308 Winchester loads, the ACSS HUD DMR .308 reticle offers a remarkable number of advanced features in a clean and intuitive design. Leads for moving targets out to a full 600 yards, wind leads, ranging, and bullet drop out to 1,000 yards, and even a MIL-ranging system are built in to the clean design. An illuminated horseshoe and center chevron allow for remarkably fast engagement of close-in targets. At any range, hits are intuitive without any need for math or digging through data books! Simply range, hold, and break the shot!

A scope that won’t hold up to real world use won’t do any good, so they built the 4-14x44mm FFP tactical rifle scope to last with a heavy-duty aircraft grade 6063 aluminum body and 30mm main tube. Waterproof, shockproof, and fog resistant, this scope is perfectly at home on an AR-15 or your favorite hunting rifle. Even better, the MIL/MIL turrets track correctly through their full 17.5 MIL adjustment range, allowing for confident adjustments for shooters who prefer to count their clicks. With clear glass, heavy duty construction, and a true first focal plane reticle that can be leveraged at every magnification, the 4-14x44mm rifle scope from Primary Arms offers shooters a versatile and effective rifle scope, covered by a lifetime warranty!

Note: While the ACSS HUD DMR .308 reticle is compatible with some .223 Rem and 5.56 NATO loadings, they recommend the dedicated ACSS-HUD-DMR-5.56 model for guns chambered in these calibers.
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Battery TypeCR2032 3V Lithium Coin
BrandPrimary Arms
Click Value0.1 Mil
Exit Pupil DiameterLow: 11.20 mm / High: 3.30 mm
Eye ReliefLow: 3.22 in / High: 3.14 in
Field View 100Low: 27.20 ft / High: 7.85 ft
Focal PlaneFirst Focal Plane
Length12.9 in
Magnification4X - 14X
Night Vision CompatibleNon-Compatible
Objective Diameter44mm
Optic SeriesSLx
ReticleACSS HUD DMR 308
Reticle ColorRed
Reticle TypeBDC
Total Elevation Adjustment17.4 MIL
Total Windage Adjustment17.4 MIL
Tube Diameter30mm
Weight25.2 Oz
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California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

My thoughts


I am pleased with my new scope. The quality of the product is excellent in every respect. I like that it has several ways of determining range and that the range holdovers are easy to see and use; the windage holdovers are an added plus. I mounted this scope on my Savage Model 10 Precision Carbine. My application is exclusively sniper rifle use, so with that in mind I would of prefered a small free-floating cross-dot aiming point over the chevron/horse shoe style, which IMO is more of a CQB style.

Nice Scope


It was easy to mount on my M&P 10. I look forward to sighting it in in the next few weeks. Very well made!



Mounted on RedX 6.5 Grendel Upper...easy zero with 27gr Benchmark and Hornady 123gr A-Max...very pleased with product.

Will be buying another one soon


This scope is very clear (even on 14 power) and the rectacle is awesome with the ffp for ranging targets. Don't think you can beat this for the price. Time will tell how it holds up. The only complaint i have which is very small is you can go to amazon and order the same scope which goes thru Primary Arms and get free shipping. I almost give this review 4 stars for that reason, but after mounting, shooting and the price i still give it 5 stars.

4-14 acss


4-14 acss, clear field of view. Super buy for the $. Sits on my 18" spr reticle coincides with Hornady 75gr super performance

Solid Scope!


A friend of mine turned me on to PA and showed me the 4-14x44 w/ ACSS HUD DMR .308/.223, he had high marks for it and said for the money you can't beat it. I took him at his word and I am so glad I did. I am a believer. Great, easy to use and understand reticle - and overall the scope is built very well. The quality you are getting at this price point is hard to beat IMO.

great quality


awesome experience as always from primary

You will not believe the quality.


Build quality is the first thing that hits you, I have tried quite a few scopes in and above this price range and this one easily beats all of them. Nothing on this scope feels cheap, if you picked it up and nobody told you the price most people with experience would guess at least 800-1000$.The reticle is something else, the word Id use to describe is "elegant", it does not feel cluttered and scales nicely as you zoom in. The illumination is crisp and doesnt have any glare or wash. The turrets are well beyond the price range, they have a clean "click" and dont have much slop between clicks. The glass is clear and bright, the metal is clean and nicely finished. I was trying to think of how I would improve this scope and to be honest I got nothing, the people who designed it know exactly what a proper combat scope should be and they made it, this scope has all the features you want but somehow keeps it at the price you want. Outstanding, well above what anyone else is making.

Excellent Scope for the Price


Built a precision AR rig, and this scope was the best in its class at this price. Close range work is possible with the illuminated horseshoe and practice using BAC or occluded eye technique.Glass is clear, knobs have distinct clicks. The ACSS HUD is what makes this thing awesome. Works great for 223 or 308. I mounted it on a BoBro QD mount and can switch back and forth between the 308 or my 223 rifle. However, double check the BDC drop with your own DOPE for slight variances with a couple loads. The manual will tell you the exact MOA drop for the BDC. Or just dial it in and use the mil dots. Overall, excellent scope for an excellent price.

4x14x44 FFP Scope


Can't wait to sight it in. Fast shipping