Best Semi Auto Rifle: Performance, Ergonomics & Top 10 Semi Auto Rifle Reviews

Semiautomatic rifle development was encouraged by military needs to be able to deliver greater firepower in the shortest time possible. Over the years, these weapons have gained popularity beyond the military.

Nowadays law enforcement agencies, as well as civilians, enjoy the ability to have fast follow-up shots for target shooting, plinking, or hunting. The best semi auto rifle is one that offers precision shooting and unmatched performance. The list of product reviews provides you with important buying information.

Features to Consider When Shopping for Semiautomatic Rifles


A rifle can have as many amazing design features as possible, but they will mean nothing if it cannot perform as expected. To begin with, you need to choose a caliber that will be sufficient for your kind of shooting.

There are so many calibers in the market, including .308 Winchester, 7mm-08 Rem, 6.8 SPC, .223 Remington, 7.26x51mm NATO, and 6.8mm among others. Choose the correct chamber for your desired shooting.

Semi Auto Rifle features

You must be able to get a positive appreciation of the weapon the moment you put it to use. Most rifles with free floating parts are known to offer maximum performance because there is no stress to the barrel.


The very first thing that you must consider is the weight. The most convenient rifle is a lightweight one, which you can easily carry and be able to sit on your target. As much as comfort depends on your technique, the ease of shooting does entirely depend on the ergonomics of the various parts, including the stock, barrel, trigger, lower receiver, and upper receiver.

Choose a rifle that features a fully adjustable stock, and a target pistol grip. Basically, you should take parts compatibility as well as weight reduction into account. Try as much as possible to choose a two-stage trigger type, especially for range shooting performance.

Top 10 Semi Auto Rifle Reviews

AP4 LR-308

AP4 LR-308

Weight: 8.5 lbs.

Barrel Length: 16 inches

Design Features: .308 Winchester; 20 round capacity; semiautomatic; 32-inch overall length & 36.5-inch overall length when collapsed; MIL-STD fire control group trigger; detachable carrying handle; fiber reinforced stock; 6-position telescoping; and button rifled AP4 contour barrel.

Best Use: Hunting, Military, & Law Enforcement

Description: The AP4 LR-308 is a semiautomatic, 16-inch barrel rifle with a 20-round capacity. The design of this piece is based on gas-operated rotating bolt along with 8620 steel bolt carrier. It is integrated with black steel (4140 chromoly steel barrel) barrel, which is well-built and highly reliable.

It is fitted with a synthetic stock, which is highly functional. The stock is well-designed to accommodate added attachments, such as monopods, rail bipods, sling mounts, and hand stops.

In addition, the stock has a glacier guard hand guard and A2 grip. The flattop upper receiver is well-engineered fitted with a thick wall. The piece has a shell deflector as well as forward assist, which are machined as a single unit.

This is the best semiautomatic to buy if you are after a center fire rifle with 308 Winchester caliber, black synthetic stock, lever safety, 20-round capacity, and 16-inch barrel. This is the most ideal model for any hunter and military/ law enforcement personnel.

Armalite AR-10 A2

Armalite AR-10 A2

Weight: 7.8 lbs.

Barrel Length: 20 inches

Design Features: 308 Winchester caliber; 37.1-inch overall length; 11-inch to 14.5-inch length of pull; 11.25-inch twist; black synthetic stock; upper and lower receiver have a hard anodized aluminum finish; two-stage trigger, chrome lined bore, & forward assist; adjustable rear & front sights; and 20-round magazine capacity.

Best Use: Hunting, Military, & Law Enforcement

Description: AR-10 A2 is a self-reloading piece chambered in 7.62 NATO or 308 Winchester. This rifle is almost similar to the M16, which the US military considered standard at the time. AR10 A2 is one of the most popular rifles in military and law enforcement across America, Europe, and Africa.

The manufacturer of this rifle sees it as a multi-use gun, and they also recommend it for leisure shooting, competitions, and tactical use. It has a gas-operated system. Therefore, recoil is delivered by the gasses that push the bolt when the projectile is released.

There is delayed recoil that ensures your shooting accuracy is not interfered by the combustion. It is integrated with forward assist, which comes into play in the event that a round fails to slide in place while in the chamber.

You can easily initiate this feature by pressing the button next to the trigger. The gun is fitted with a two-stage trigger that delivers a long pull. It comes with adjustable rear & front sights for elevation as well as windage. You should not be worried about corrosion because the chrome-lined bore is rust-resistant.

Remington  R-25

Remington R-25

Weight: 7.75 lbs.

Barrel Length: 20 inches

Design Features: Semiautomatic/Gas-operated; 7mm-08 Rem, .243 Win & .308 Win chambered; 4-round capacity; included lockable hard case; fluted barrel; upper & lower receiver; single-stage trigger; 1-in-10 inches twist; aluminum free-floated handguard; no sights; bolt carrier; mossy oak treestand camo; front & rear sling swivel studs; and 2-year limited warranty.

Best Use: Big Game Hunting

Description: This is one of the best semi auto hunting rifles in the market. Remington R-25 design is based on GII technology, making it the best and most resourceful contemporary big game hunting rifle. It delivers splitting accuracy that you can rarely find in other rifles.

It is a self-reloading, gas-operated machine that is chambered in 7mm-08 Rem, .243 Win, and .308 Win. It is incorporated with Mossy Oak Treestand Camo. It has a unique barrel profile that is 20-inch carbon steel fluted along with Koelbl single rail gas block, and .680” muzzle w/ recessed crown.

It is integrated with 8620 heat-treated steel bolt along with bolt carrier, and aluminum free-floated handguard. The upper receiver features: Picatinny rail, right-hand eject, forward assist & shell deflector, hard-coated & full camo, and 6066 T-Aluminum.

The lower receiver features: aluminum mag release button, internal trigger guard, hard-coated & full camo, and 6061 T-Aluminum. It has standard A-2 Zytel stock accompanied by A-2 Zytel pistol grip and trap door assembly. In addition, the rifle has a magazine capacity of 4 rounds.

POF-USA P-415 IN 6.8 SPC Spec II

POF-USA P-415 IN 6.8 SPC Spec II

Weight: 6.4 lbs.

Barrel Length: 9.25 inches

Design Features: 6.8mm chambered; 30-round magazine; NP3 Nickel Teflon finish; gas-piston operated, rotating bolt action; no sights, optional Troy BUIS; Vltor EMOD/ Magpul CTR stock; 254.75 inches long when the stock is retracted, and 29.5 inches when the stock is extended.

Best Use: Hunting, Military, & Law Enforcement

Description: The P-415 is a semiautomatic, gas-operated rifle that is chambered in 6mm. It has a unique appearance right out of the box. It is beyond any reasonable doubt a solid piece.

It is installed with NP3 coated integral key bolt carrier, 7075 upper receiver w/ corrosion resistant operating system, nickel Teflon NP3 coated, and a full-length predator rail system. You will notice that the charging handle is also NP3 treated.

The upper operates on POF’s gas system, and it is fitted with a two distinct settings labeled as N & S for normal as well as suppressed.

Additionally, the upper is fitted with a CADEX handguard that prevents your hand from slipping forward when firing. On the other hand, you can refer to the lower section as ambidextrous. It has an ergo pistol grip, which is highly tactile.

The stock assembly is made of Magpul. The upper, as well as the lower, have a high life span and lubricity because of the NP3 finish. You will not be disappointed by the performance of this piece. You will find it variant a pleasure to shoot as well as very accurate.

Barrett REC 7

Barrett REC 7

Weight: 7.2 lbs.

Barrel Length: 11.5 inches

Design Features: 6.8 SPC; Gas Piston System/Semiautomatic/Select Fire; 30-round magazine; Magpul MOE 6 position stock; one piece piston; two-position gas plug; integrated strike face, anti-tilt bolt carrier; enhanced trigger guard; and beveled magazine.

Best Use: Hunting, Military, & Law Enforcement

Description: Barrett Rec 7 is engineered for precision shooting with no room for error. It is designed in the likes of AR to provide you with a compact as well as an accurate machine that is completely trustworthy.

When compared to most rifles in the market, this piece is made to provide military and law enforcement personnel with a reliable firing machine.

Its innovative operating system contributes a lot to its dependability. The piston system is incorporated with fewer parts, making it possible for it to split heat as well as powder excess from the trigger assembly and bolt carrier.

This allows the gun to cool and stay clean; therefore, reducing the need of maintenance while increasing endurance and dependability. When used in adverse conditions, carbon buildup is significantly prevented by the patented chrome-lined fluted gas block.

Energy is transferred to the anti-tilt bolt carrier by the one-piece stainless piston. The bolt is made up of heavy-duty 9310 steel, made precisely to be used in piston operated Rec7.

You will also realize that the bolt is easy to clean because of the gas-ring-free design. The upper and lower are forged from 7075 aluminum and they have anodized and Cerakote finish.

Alexander Arms 50 Beowulf Entry

Alexander Arms 50 Beowulf Entry

Weight: 8 lbs.

Barrel Length: 16.5 inches

Design Features: Semiautomatic; 50 BEOWULF; black finish; 36-inch overall length; 7+1-round capacity; fixed stock; standard trigger; standard Picatinny rail gas block; forged/hard-anodized lower & upper receiver; two-position thumb safety; and chrome molly barrel.

Best Use: Hunting, Military, & Law Enforcement

Description: It resembles an AR. However, the huge muzzle brake increases visual sizzle. The .50 Beowulf is made to produce overwhelming stopping muscle at short as well as to moderate ranges. It combines the reliability and resourcefulness of the M16/AR-15 with a distinctive projectile and cartridge.

You should go for this rifle if you are looking for a machine that has the ability to knock down anything in your path. It is one of the leading weapons of choice for big game hunters and game control agencies.

You can easily and effectively take down a deer with a single shot without tracking. Expert hunters have put this piece to test by going against bear, buffalo, and elk with exceptional results. The weapon is also widely used by law enforcement and military because of its performance, which is a combination of light carbine with the venerable 45 to 70 rifle.

Comfort when using this rifle depends on your technique. Nonetheless, shooting accuracy does rely on the lower. Generally, this is a highly reliable gun that performs flawlessly.



Weight: 8 lbs.

Barrel Length: 20 inches

Design Features: .223 Remington; 10 round capacity; 39-inch overall length; 7-inch rifling twist; iron sights; multi-lug rotory locking bolt, gas operated, and semi auto trigger.

Best Use: Hunting, Military, & Law Enforcement

AR-15 is a self-reloading, gas-operated rifle and it is chambered in .223 Remington. It has a 10-round magazine capacity. When compared to other rifles of a similar caliber, this one holds more than average. It shoots a single cartridge for each trigger pull.

It is a select-fire weapon, but it cannot fully be considered as an assault rifle. It weighs eight pounds when unloaded. Therefore, it is one of the lightest guns for hunting. It is relatively small and of the ideal size with an overall length of thirty nine inches and a barrel length of twenty inches. The gun has a muzzle energy of 1291 foot pounds and an average muzzle velocity of 3220 FPS.

The body of AR-15 is made up of two sections, the upper and lower receiver. The lower receiver contains the magazine, manual safety, and trigger unit. It is also installed with an interface for bolt return spring as well as bolt buffer.

The upper receiver is fitted with bolt group along with interfaces for mounting rear sight and barrel. On the other hand, receiver halves are linked by a couple of confined cross-pins, which are made of steel.

You can easily disengage the upper and lower by simply pushing the pins from left-right. Once you have done that go ahead and pull the pins from the right to free the upper receiver.

Knight’s SR-25

Knight's SR-25

Weight: 10.75 lbs.

Barrel Length: 24 inches

Design Features: 7.26x51mm NATO (.308); Gas operated/ semiautomatic; black synthetic AR-15A2 design; modified AR-15 trigger; 20-round magazine capacity; and 1:11.25-inch twist.

Best Use: Hunting, Military, & Law Enforcement

Description: Knights SR exhibits some of the major traits of M-16 and AR-10. This piece is designed to be an ultimate assault rifle. When compared to most assault rifles in the market, SR-25 presents no issues with the accuracy.

The 7.65x51mm NATO caliber is sufficient for doing some serious damage. The twenty-four-inch barrel is heavy matched. It uses 20-round magazines which are detachable. The modified AR-15 trigger is fully adjustable for sear engagement and over-travel. The black synthetic stock has full floating fore-end that is glass-reinforced and attached to the upper receiver.

STAG Arms M7 Hunter

STAG Arms M7 Hunter

Weight: 7 lbs.

Barrel Length: 16 inches

Design Features: .223 Remington; semiautomatic; 30-round magazine capacity; 9-inch rifling twist; Midwest rear flip sight and front post; and chrome lined barrel finish

Best Use: Hunting, Military, & Law Enforcement

Description: This is a self-reloading rifle that is chambered with .223 Remington. It has a maximum magazine capacity of thirty rounds. Surprisingly, this piece does not have the same look as the contemporary battle rifles you can find in the market.

It resembles the M16A2 (5.56mm NATO), a weapon that is popular in the military. It is fitted with a 16-inch stainless steel barrel, along with a pistol grip, fixed buttstock, and a cylindrical forend. Free floating parts optimize accuracy by minimizing stress to the barrel. Moreover, the two-stage trigger group is added quality to the assembly.

DPMS .308 Mark 12

DPMS .308 Mark 12

Weight: 8.5 lbs.

Barrel Length: 18 inches

Design Features: .308 Win; overall length of 36.5/40.25 inches; Hbar, Teflon coated 416 stainless; 1×10 twist; extruded 7029 T6 A3 flattop; Midwest industry flip-up front/rear sight windage only; G27 pistol grip; 4-rail free float handguard; standard AR-15 fire control; billet 7029 T6B5 lower receiver; sopmod stock; and Panther flash hider.

Best Use: Hunting, Military, & Law Enforcement

Description: Right out of the box, you will be satisfied with the design as well as parts of choice of the DPMS. The parts fit smoothly and securely. Like the previous model, it is fitted with a free floating barrel that measures 18 inches.

This barrel experiences less stress; therefore, it offers exceptional maneuverability and balance of muzzle velocity and strength. The fluted barrel weighs less, providing the required stiffness for accuracy shooting. It is installed with a fully adjustable rifle stock (Magpul). In addition, it is incorporated with a target style pistol grip along with an adjustable hand shelf.

In Conclusion

Most semi auto rifles are gas operated. Therefore, they may fickle with specific ammunitions. You need to choose a rifle that speaks of quality and detail right out of the box. The upper and lower receiver should have a whole host of features that are necessary.

Choose your Semi Auto Rifle

Make sure that both the barrel and stock are well-designed for maximum performance. If possible choose a rifle with an ambidextrous lower receiver. Your main objective should be to select a semi auto that is trustworthy. Do you think we have left out any important self-reloading rifles? If so, please let us know in comments.


Dennis Owens

Dennis Owens is a graduate of National Camping School and REI Outdoor School. He knows everything about what gear to take with you, how to plan your trip to stay safe and what to do if you get lost in the mountains. We are lucky to have Dennis with us as he is a ‘walking encyclopedia’ when it comes to the wilderness.


  • Unfortunately, the AR-15 receives a lot of bad press, with some less than desirable people using this as their weapon of choice for some particularly gruesome means and many will argue that hunting with this type of weapon is unnecessary.

    These people may be right, however, in my opinion, they are right in the sense that luxury cars or expensive fashionable clothes are unnecessary, we may not actually need them but they make life better, easier or more enjoyable.

    I believe the same argument can be applied to using the AR-15 to hunt, though there are, of course, alternatives such as a bolt gun, a bow and arrow or even a sharpened stick if you’re feeling brave enough, the AR-15 makes hunting easy. There have been times that if I were hunting with a bolt action, I’d have perhaps snagged one rabbit, using an AR, however, I managed to get 4. A rifle definitely worth considering for hunters.

    • It is all about the subjective feel of the rifle that matters in the end. If you are comfortable with your purchase and complements your hunting experience, it should be more than alright. The AR-15 is a great choice, and I have recommended this to my friends who wanted a powerful semi-auto rifle.