15 Best Semi-Auto 308 Rifles: The Top AR-10s on Sale

15 Best Semi-Auto 308 Rifles: The Top AR-10s on Sale

Update: Covid-19, riots across America and now a change in government mean that gun stocks are stretched wafer thin. That includes semi-auto 308 rifles.

We’ll be honest, we haven’t seen some guns for months. So we’ve dropped a few down the order and brought in new arrivals you can actually buy. Which explains the hokey order.

Also, these will sell out fast. We’re monitoring constantly, but if you just want to see which semi-automatic 308 rifle you can buy right now, these live links will show you what’s in stock today.

The Best Semi-Auto 308 Win Rifles For Sale

Semi-Auto 3.8 Win Mag rifles are AR-15s taken to a new level entirely. They are battle rifles in the truest sense, and they are also seriously popular hunting rifles.

It used to be that a semi-auto wasn’t as accurate as its bolt-action brethren. But that has become one of those urban myths. While technically there’s a kernel of truth in there, there is no practical difference unless you’re punching paper at 1000 yards.

Even then, chassis rifles and hybrid precision rifles are still leaning towards the Modern Sporting Rifle design. And Semi-automatic rifles are appearing more and more in target shooting competitions.

With a hog hunt, range shooting or even home defense, that autoloading semi-automatic rifle is worth its weight in gold. That’s good, because there is often a serious weight penalty to pay. A lightweight AR-10 is a rare find, but we’ve got a few…

Now, which is the best semi-auto 308 Win Mag rifle for sale in 2020?

15 Best Semi-Auto 308 Rifles: The Top AR-10s on Sale

1. Christensen Arms CA-10 DMR

  • Price: $3,145.99
  • Barrel: 18 inch
  • Total Length: 39 inch
  • Capacity: 20+1
  • Weight: 7.1lb

Simple availability is one reason the Christensen Arms CA-10 DMR is riding high at the moment. You can buy one, which makes it the best custom 308 Win semi-auto rifle for sale in 2020.

Seriously you even get a choice of colors: Burnt Bronze, Tungsten Grey and Matte Black Cerakote finish. They even have barrel length options for your Designated Marksman Rifle, with 18 and 20 inch barrels.

At a time when nothing is available, that’s crazy.

Also, It’s a Great 308 Rifle

Look beyond the logistical supply chain problems of 2020 in the firearms industry and you’ll see a beast of a gun that’s number one pretty much on merit.

The Christensen Arms CA-10 DMR is the complete AR-10. It’s light enough to shoulder all day and yet capable of delivering all that 308 Win Mag punch.

Lightweight materials, mainly carbon-fiber, contribute to a lightweight 308 Semi Auto. That barrel is CF-wrapped steel, the handguard is carbon fiber too and the end result is a sublime piece of balanced engineering.

Yes CF parts cost a little more to maintain and replace. But they also give you an absolutely stellar battle rifle that can give you the competitive edge when it comes to home defense. Or it can be your main hunting rifle.

FN SCAR 17S for sale. One of the great military rifles of recent times. Get your rifle online right now.

2. FN SCAR 17S

  • Price: $3,162.00
  • Barrel: 17 inch
  • Total Length: 28.5- inch
  • Capacity: 20+1
  • Weight: 8lb

If you’re looking for the ultimate 308 battle rifle, well the FN SCAR could make a legitimate claim to that title. This is a US Military service weapon, minus full auto.

You have to admit, that’s kind of badass in itself.

This is a short-stroke, gas piston operated rifle and the 17S comes in .308 Win.

FN Can Suck Your Money Like a Meth Addiction

Some people need to be careful with FN rifles. It turns into an addiction that means your quality of life can actually suffer. Why? Nobody is really sure, but there’s an aesthetic, a level of engineering and a certain FN way of doing things that can turn you into one of those enthusiast bores at parties.

If you’re nodding along, you probably already know that today is about to get expensive. Worry about it tomorrow. It’s fine…

The cold hammer forged barrel is chrome-lined barrel and free-floating. It’s fully ambidextrous, which is nice for left-handed shooters, and it is basically bulletproof.

It’s also one of the most famous and instantly recognizable rifles on the planet. And you do kind of want to own one. Get yours now.

Wilson Combat AR-10 Ranger

3. Wilson Combat AR-10 Ranger

  • Price: $2,995
  • Caliber: 308 Win Mag
  • Barrel: 16 inch
  • Total: 32.5-37.75 inch
  • Weight: 8lb

Only the 5-8 week delivery time is holding the Wilson Combat AR-10 Range off the top spot. It’s really that close between these custom gunsmiths.

But you can order the Christensen Arms and have it in your hands in 48 hours through your local FFL dealer. You can’t do that with the Wilson Combat and that’s why it’s in second place.

If you can wait, and you’re buying another 308 Winchester Semi-automatic rifle as a back-up, this might be the perfect choice.

Are Wilson Combat Rifles Worth the Money?

Well isn’t this a can of worms of a question….

These custom rifles are expensive, and you could also argue that the Christensen Arms gives better value for money with the custom carbon fiber parts. And you’d have a point.

But you’re paying for the peace of mind that goes with owning one of the finest semi-automatic rifles. You’re paying for the obsessive R&D on 20 abandoned handguards.

You’re paying for the countless hours of quality control, experimentation with third party suppliers and the thousands of hours in the field.

This Rife Doesn’t Miss, You Do…

Also, you’re paying for the definitive knowledge that this rifle is spot on, and if you miss then it’s probably your fault.

Some people like having to raise the game to the Porsche in the hands, rather than blaming an old Ford for screwing up. And that’s fine too.

It’s just on-point engineering at every single step of the process. It’s mechanical engineering beauty in its own way, like a Swiss watch.

Nice things cost money. That’s a sad fact. But the Wilson Combat is one of those investments that will put a smile on your face every time you lay eyes on it in your gun safe. You don’t even need to fire it to feel the quality.

H&K MR762A1 Long Range Precision for sale. Get this legendary 308 precision shooter here.

4. HK MR762A1 Long Range Precision

  • Price: $7,119
  • Barrel: 16.5 inch
  • Total: 36.5-40.5 inch
  • Weight: 10.42lb
  • Capacity: 20+1

You are either shaking your head at disgust at the price or mashing the buy it now button. There doesn’t seem to be a grey area here…

We are the first to concede that the HK MR762A1 LRP is a total Crackpipe of a retail price.

Also, we would encourage you to look at perfectly servicable rifles on this list for about half the money. But then if you really want the HK then it doesn’t really matter what we say. And we know that too.

This is essentially Heckler & Koch’s military hardware, a semi-automatic sniper rifle so accurate and reliable that it become an official supplier. The HK is known as the US Army’s Compact Semi-Automatic Sniper System (CASS) and Squad Designated Marksman Rifle.

Expensive Mods You Can Do at Home

You can also look at it as a modified battle rifle, with some basic parts you can buy online. And you would be right too.

It really is the HK MR762 with a Vortex PSTII scope, cheekrest on the HK G28 stock, heavy barrel, Harris bipod, M-Lok handguard and a pelican case. I think you could buy those things in about 5 minutes, for less…

But if you want the legendary HK reliability. If you want that piston system that’s so good it’s basically banned on these shores, then that’s all good too.

It’s your money. Buy a Ferrari. Buy a HK. It’s all cool…

15 Best Semi-Auto 308 Rifles: The Top AR-10s on Sale

5. Armalite AR10 .308 Tactical

  • Price: $1.739.99
  • Barrel Length: 16 inch
  • Total Length: 39.5 inch
  • Weight: 8.4lb

Armalite will forever remain intertwined with the AR-15. And none of these Modern Sporting Rifles would have happened without it. So, in a way, Armalite started this whole thing.

That doesn’t really matter now. What does matter is that this is a high quality rifle and the customer service team has been working overtime to keep stock flowing in 2020.

So at the time of writing, you could actually buy one. And that’s a big deal. Euro Optic even had an SBR and a few other options you might want to consider.

Daniel Defense DD5 V2 308 Rifle. A great 308 Winchester semi-automatic AR-10.

6. Daniel Defense DD5 V2 308 Rifle

  • Price: $2.599.99
  • Barrel Length: 18 inch
  • Total Length: 35.3-39 inch
  • Weight: 8.6lb

If we could find one to sell you then the Daniel Defense would be right up there with the Christensen Arms.

This is slightly heavier, but so much cheaper and more mainstream that we think it would win the popular vote.

Daniel Defense make great AR-15s that are consistently among the winners of our $2000 AR-15 and custom AR-15 categories. It also makes great sniper rifles and big battle rifles, as it turns out.

DMR That Beats the Military Standard

There are lots of rifles the average soldier would rather take into battle than the contract-supplied hardware in their hands.

You can guarantee that the Designated Marksman would take a long-range Daniel Defense rifle in a heartbeat. If his country could afford it. But you can. So do it.

15 Best Semi-Auto 308 Rifles: The Top AR-10s on Sale

7. Smith & Wesson M&P10

  • Price: $1,049.99
  • Barrel length: 16 inch
  • Total Length: 34 inch
  • Capacity: 20+1
  • Weight: 8lb

This is the classic Colt M4 clone 308 Winchester AR-10. It’s the matte black rifle you pictured in your head when you clicked the link.

It is also 8.1lb without any of the fancy technology you find on other semi-auto rifles here. Just simple, pared down polymer and steel with a Black Armonite finish.

You get a collapsible stock, some of them have M-Lok handguards, others have the classic Vietnam era forend. All of them offer spectacular bang for the buck.

There’s nothing standout except the price, but this is a good, honest, 308 Winchester rifle that will do everything you want.

If you want to level up, head to the Smith and Wesson Performance Center, who can sell you a semi-automatic rifle sniper system.

As an all-rounder, and even a hunting rifle up to 500 yards, though, this is the one multitool you need in your gun safe.

Springfield Saint Victor 308 rifle on sale now.

8. Springfield Armory Saint Victor 308

  • Price: $1,319.99
  • Barrel: 16 inch
  • Total: 37.75 inch
  • Weight: 7.11lb

The Springfield Armory Saint Victor 308 Winchester is a minimalist AR-10 that manages to sneak under the 8lb bar. By quite a margin.

Now that’s a significant psychological barrier and puts this gun into elite company. And it gets there for about half the money.

Patrol and Light Hunting, Not a DMR

Semi-auto rifles like this are good for target shooting and it’s even a hunting rifle for big game and medium game in North America.

But they’re really battle rifles at heart. So you get an M-Lok rail for tactical gear. The full-length Picatinny rail is interrupted to save weight and the black synthetic Bravo Company Manufacturing buttstock is lightweight too.

Availability has been a problem during the great 2020 guns shortage. But if you can see one, don’t be put off by the low price. This is everything you need, and nothing that you don’t.

Rock River Arms LAR-8 X-1 rifle on sale now. A sub-MOA semi automatic 308 Winchester sniper. Great for home defense.

9. Rock River Arms LAR-8 X-1

  • Price: $1.699.99
  • Barrel Length: 18 inch
  • Total Length: 35.3-39 inch
  • Weight: 9.5lb

This is a budget conscious Designated Marksman Rifle that promises sub-MOA performance out the box.

If you want a simple 16 inch barrel patrol rifle, go for the M4. This is the long-range rifle that gives you options for home defense and some hunting scenarios.

That weight is a bitch and you’d really have to be a committed hunter or professional sniper to shoulder 9.5lb on a hike.

But this is a rifle law enforcement and military rely on each and every day.

If you don’t see the added weight as a penalty and you like a thicc rifle, well this one works.

FN SCAR 20S for sale. A custom sniper rifle in 308 Winchester

10. FN Scar 20S

  • Price: $4,499.99
  • Barrel: 20 inch
  • Total: 42.5 inch
  • Capacity: 10+1
  • Weight: 11.2lb

This is the longer barrel, long-range version of the legendary FN SCAR that troops around the world have taken into battle with select fire and a full auto switch.

This is the precision rifle, a marksman’s special and a target shooter extraordinare. For FN to give us a sniper rifer without a bolt-action, they must agree with us about bolt actions offering no real world advantage.

FN took inspiration from the Mk 17 and Mk 22 SSR rifles chambered in 308 Winchester.

This is a gas-piston design, which is kind of the least you’d hope for at this price, and that sturdy frame and long footprint mean recoil isn’t a real problem. The upper receiver and flat top really make it look like

Military Gun Now a Civilian Paper Puncher

This is really a target shooter’s gun, but the semi-automatic FN might also be the perfect hunting gun if you go on safari. Or if you hunt from towers or hides. People do that, and then the weight of the gun is less of an issue.

With an 800-yard range, and more in competent hands, the FN SCAR 20S is becoming a firm favorite with serious hobby shooters. The monolithic receiver, full-length 1913 rail and 20 inch stainless steel barrel all contribute to a rock steady tack driver.

PSA Gen3 PSA10. A 308 Winchester AR Style rifle that's cheap, effective and pretty light. Is this a good 308 starter rifle? Yes.

11. Palmetto State Armory Gen3 PA10

  • Price: $839.99
  • Barrel: 18 inch
  • Total Length: 36 inch
  • Weight: 8lb
  • Capacity: 20+1

Palmetto State Armory makes cheap Modern Sporting Rifles, and now pistols, that have established a cult like following with those that like a bargain.

You get a patrol rifle at a great weight with a stainless steel barrel and forged aircraft-grade aluminum receivers. The Bolt Carrier Group is Nitride coated, it’s a flat top upper receiver and full-length rail. On paper it’s good.

And for the money you spend, the Palmetto State Armory rifle gives outstanding bang for the buck. There are other budget rifles that are close enough to this price point to get my vote. But the PSA 308 rifle is still a great starter rifle that shouldn’t let you down.

Springfield Armory M1A Scout Squad rifle on sale now. Get your World War II inspired semi-automatic 308 rifle today.

12. Springfield Armory M1A Scout Squad

  • Price: $1,649.99
  • Barrel: 18 inch
  • Total: 44.3 inch
  • Weight: 8.8lb

The Springfield Armory M1A Scout is an oddity in this company, if not a complete wildcard.

I mean it’s not an AR-10, but it basically matches the numbers of anything else here and comes with a detachable box magazine. So yeah.

Yes this Pringfield M1A is an old-school scout rifle, based on the M1 Garand that helped to win World War II. But it’s also a simple rifle, designed for all-round use and shouldering all day on long marches. So the Scout Squad was always a kind of lightweight 308 rifle.

Pretty useful thing huh? And that’s why the Springfield M1A in various forms is still popular with Law Enforcement. When they need a little more range, but don’t want to deal with a bolt action, this works. When they’re getting shot at, is one such occasion.

The Springfield M1A comes with a composite stock with a forward-mounted optical sight base. That’s a rail up front, and folding iron sights. Just in case you’re a time traveler from the last century.

Now you can get a number of different Springfield M1A finishes, including the ever so slightly batshit nuts Springfield M1A SOCOM. That’s like a steampunk AR-15 and, aesthetically at least, one of our favorite rifles on sale in 2020.

15 Best Semi-Auto 308 Rifles: The Top AR-10s on Sale

13. Kel-Tec RFB Carbine

  • Price: $1429.90
  • Barrel: 18 inch
  • Total Length: 26 inch
  • Weight: 8.1lb
  • Capacity: 10+1

If you like compact, lightweight AR-10 semi automatic rifles, then you really should take a look at the Kel-Tec RFB bullpup rifle.

The whole gun isn’t much longer than the average AR pistol. But it packs in a full 18 inch barrel, a detachable box magazine and this is one of the more elegantly designed battle rifles here.

It solves problems the heavier AR-10s just tolerate and work round. This is intelligent design, and it’s also a really, really good gun.

Century Arms C308, a cheap 308 rifle that is easily a match for many more expensive AR-10s chambered in 308.

14. Century Arms C308

  • Price: $699.99
  • Barrel: 18 inch
  • Total Length: 26 inch
  • Weight: 8.1lb
  • Capacity: 10+1

If you want a cheap 308 AR-style rifle and you can compromise a little, then the Century Arms C308 has a lot going for it. It’s basically a HK91 clone, which isn’t a bad start for a tactical rifle as it turns out.

The Mauser STG-45, a variety of Spanish CETME rifles and the HK are all kind of related. But this is really a clone of the HK and comes with that iconic and famously reliable roller-delayed blowback system.

The simple folding stock and minimal window dressing gives a gun that tips the scales at just over 8lb too.

So it’s portable, it’s reasonably accurate up to 400 yards and it comes from the same company that makes all the modern AK-47s and Draco guns.

There are other guns that don’t cost much more and will give you a better ownership experience. But if money is the number one priority, you could do a lot worse than this.

All rights reserved. Privacy policy terms & conditions available from customer service at the main email address.


  1. Travis Adams April 25, 2021
  2. Blake Kenny January 9, 2022

Add Comment