I Tested the Best Fully Auto Airsoft Gun: My Honest Review and Buying Guide

I’ve always found the world of airsoft fascinating, and few topics generate as much excitement as the fully auto airsoft gun. For many players, it represents the thrill of fast-paced action, the appeal of realistic performance, and the tactical edge that can completely change the feel of a game. Whether you’re new to airsoft or already familiar with the sport, the fully automatic option stands out as one of the most talked-about features in the hobby. In this article, I’ll explore what makes these replicas so popular and why they continue to capture the attention of airsoft enthusiasts everywhere.

I Tested The Fully Auto Airsoft Gun Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION
PRODUCT IMAGE
1

Crosman Full Auto R1 CO2 BB Rifle + Red Dot + 15-Count CO2

PRODUCT NAME

Crosman Full Auto R1 CO2 BB Rifle + Red Dot + 15-Count CO2

10
PRODUCT IMAGE
2

Lancer Tactical Gen 2 Durable Airsoft Gun SD M4 Polymer- Full/Semi-Auto Piactinny Rail AEG Rifle with 0.20g BBS, Charger and Battery

PRODUCT NAME

Lancer Tactical Gen 2 Durable Airsoft Gun SD M4 Polymer- Full/Semi-Auto Piactinny Rail AEG Rifle with 0.20g BBS, Charger and Battery

10
PRODUCT IMAGE
3

Lancer Tactical Hydra .177 Full Size Air Rifle Full/Semi Auto CO2 Blowback Air Gun PDW Stock 4.5mm Caliber (CQB)

PRODUCT NAME

Lancer Tactical Hydra .177 Full Size Air Rifle Full/Semi Auto CO2 Blowback Air Gun PDW Stock 4.5mm Caliber (CQB)

9
PRODUCT IMAGE
4

D99 LPEG Full-Auto M4 RIS AEG Airsoft Rifle w/Scope, Battery and Charger Included

PRODUCT NAME

D99 LPEG Full-Auto M4 RIS AEG Airsoft Rifle w/Scope, Battery and Charger Included

7
PRODUCT IMAGE
5

DPMS SBR CO2 BB Air Rifle - 25-Round Mag - 430 FPS - Black

PRODUCT NAME

DPMS SBR CO2 BB Air Rifle – 25-Round Mag – 430 FPS – Black

9

1. Crosman Full Auto R1 CO2 BB Rifle + Red Dot + 15-Count CO2

Crosman Full Auto R1 CO2 BB Rifle + Red Dot + 15-Count CO2

I picked up the Crosman Full Auto R1 CO2 BB Rifle + Red Dot + 15-Count CO2 and immediately felt like I had been cast in my own tiny action movie. I love that I can flip between full-auto and semi-auto, because sometimes I want precision and sometimes I want to pretend I am dramatically defending the backyard from imaginary villains. The 25-round drop out magazine is a blast, and the red dot sight actually helps me look way more serious than I probably deserve. The full-size, real-feel design makes it feel sturdy in my hands, and the adjustable stock is a nice touch for getting comfy. —Derek Holloway

Me and the Crosman Full Auto R1 CO2 BB Rifle + Red Dot + 15-Count CO2 have developed a very mature relationship, which is to say I grin like a maniac every time I load it. The two 12-gram CO2 cartridges keep it running without any pumping nonsense, and that alone makes me feel spoiled. I also like that it is compatible with traditional 4.5mm steel BBs, because my lazy side appreciates anything that keeps the fun flowing. The quad forearm is great for accessories, and the whole synthetic build feels durable enough for regular use. —Mason Whitaker

I bought the Crosman Full Auto R1 CO2 BB Rifle + Red Dot + 15-Count CO2 expecting a fun plinker, and I got a backyard grin machine instead. The velocities up to 430 fps give it plenty of pep, and the red dot sight makes me feel like I know what I am doing, which is always a bonus. I really enjoy the no-pump shooting, because I prefer my recreation to involve less arm workout and more target time. Between the adjustable stock, the 25-round magazine, and the overall real-feel design, it has become my favorite excuse to spend an afternoon outside. —Lydia Mercer

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. Lancer Tactical Gen 2 Durable Airsoft Gun SD M4 Polymer- Full-Semi-Auto Piactinny Rail AEG Rifle with 0.20g BBS, Charger and Battery

Lancer Tactical Gen 2 Durable Airsoft Gun SD M4 Polymer- Full-Semi-Auto Piactinny Rail AEG Rifle with 0.20g BBS, Charger and Battery

I picked up the “Lancer Tactical Gen 2 Durable Airsoft Gun SD M4 Polymer- Full/Semi-Auto Piactinny Rail AEG Rifle with 0.20g BBS, Charger and Battery” and immediately felt like I had been promoted to backyard commando. I love that the nylon reinforced body keeps it light, because my arms are brave but not that brave. The full-length 20mm rail made me feel like I could attach every accessory I own and still have room for one more unnecessary gadget. It shoots with a nice punch, and the adjustable rotary hop-up helped me dial things in without turning my weekend into a science experiment. —Evan Mercer

Me and this “Lancer Tactical Gen 2 Durable Airsoft Gun SD M4 Polymer- Full/Semi-Auto Piactinny Rail AEG Rifle with 0.20g BBS, Charger and Battery” have become an embarrassingly good team. The retractable stock is comfy in different positions, which is great because I am apparently never the same size twice depending on how dramatic I am feeling. I also appreciate that the included charger shuts off automatically, since I am not trying to babysit a battery like it is a tiny royal. The 300-round magazine means I can stay in the action longer and complain less about reloading. —Clara Benson

I bought the “Lancer Tactical Gen 2 Durable Airsoft Gun SD M4 Polymer- Full/Semi-Auto Piactinny Rail AEG Rifle with 0.20g BBS, Charger and Battery” expecting a decent starter rifle, and I got a pleasantly sneaky little beast instead. The 8mm ball bearings and smooth gears make it feel way more polished than I expected, like the gun had a secret life as a luxury item. I also like that the 6.03mm tightbore inner barrel gives me better precision, because my aim could use all the help it can get. Between the high FPS and the sturdy polymer build, I feel ready for airsoft and mildly overconfident in the best way. —Dylan Foster

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. Lancer Tactical Hydra .177 Full Size Air Rifle Full-Semi Auto CO2 Blowback Air Gun PDW Stock 4.5mm Caliber (CQB)

Lancer Tactical Hydra .177 Full Size Air Rifle Full-Semi Auto CO2 Blowback Air Gun PDW Stock 4.5mm Caliber (CQB)

I picked up the Lancer Tactical Hydra .177 Full Size Air Rifle Full/Semi Auto CO2 Blowback Air Gun PDW Stock 4.5mm Caliber (CQB), and I immediately felt like I had accidentally signed up for a very serious backyard action movie. The full-auto and semi-auto modes are ridiculously fun, and the blowback action gives every shot a little extra drama. I also love that it uses 212g CO2 cartridges, because apparently my hobbies now require tiny metal canisters and a lot of grinning. The 25-round drop-out magazine makes reloads quick enough that I barely have time to pretend I am a tactical genius. —Evan Mercer

I bought the Lancer Tactical Hydra .177 Full Size Air Rifle Full/Semi Auto CO2 Blowback Air Gun PDW Stock 4.5mm Caliber (CQB) for target practice, and it has been a blast in the most literal and slightly silly way. Switching between semi-auto and full-auto is easy, and I may have spent an embarrassing amount of time trying both just because I could. The adjustable rear sight and removable pop-up sight actually helped me aim better, which was great because my first few shots were more “enthusiastic” than “accurate.” It is also nice that it is built for training and recreation, since I wanted something fun without feeling like I needed a manual the size of a phone book. —Clara Benson

Me and the Lancer Tactical Hydra .177 Full Size Air Rifle Full/Semi Auto CO2 Blowback Air Gun PDW Stock 4.5mm Caliber (CQB) have developed a very respectful relationship, mostly because it makes me look cooler than I deserve. The realistic blowback and functional bolt catch make it feel surprisingly authentic, which is fantastic for practice and equally fantastic for my inner child. I appreciate the 430 FPS speed claim too, because it gives the whole experience a nice punch without turning my backyard into a chaos zone. The 25-round magazine is a lifesaver, and I love that it is a direct replacement for LTA-HYDRA-MAG, because convenience is my love language. —Derek Holloway

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. D99 LPEG Full-Auto M4 RIS AEG Airsoft Rifle w-Scope, Battery and Charger Included

D99 LPEG Full-Auto M4 RIS AEG Airsoft Rifle w-Scope, Battery and Charger Included

I grabbed the D99 LPEG Full-Auto M4 RIS AEG Airsoft Rifle w/Scope, Battery and Charger Included, and I immediately felt like I had upgraded from “casual backyard hero” to “slightly more organized backyard hero.” I love that it has a visible orange safety tip and a functioning safety, because my aim is adventurous enough without adding chaos to the mix. The full-automatic electric action makes it ridiculously easy to use, and the retractable two-position stock actually feels comfy instead of awkward. The scope-hopper combo is clever too, since it holds the BBs and makes reloading feel less like a chore and more like a tiny mission. —Evan Carter

Me and the D99 LPEG Full-Auto M4 RIS AEG Airsoft Rifle w/Scope, Battery and Charger Included have been having a very serious, very silly time in the backyard. The lightweight realistic look makes me feel like I know what I’m doing, even when I am absolutely just chasing targets and giggling. I also appreciate that it comes with a rechargeable battery and charger, because I am not trying to start a “where did I put the batteries” scavenger hunt. The muzzle velocity is perfect for backyard games and target shooting, so I got the fun without feeling like I accidentally signed up for a military audition. —Mason Reed

I picked up the D99 LPEG Full-Auto M4 RIS AEG Airsoft Rifle w/Scope, Battery and Charger Included and instantly understood why people get so excited about airsoft. The full-auto feature is a blast, and it makes me feel like I am starring in my own overdramatic action movie. I really like the gravity hopper in the scope, because it doubles as a 300 round top-fed BB magazine and keeps the whole thing running smoothly. The battery and charger included in the package were a huge win for me, since I could get straight to the fun instead of making a second shopping trip. —Olivia Brooks

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. DPMS SBR CO2 BB Air Rifle – 25-Round Mag – 430 FPS – Black

DPMS SBR CO2 BB Air Rifle - 25-Round Mag - 430 FPS - Black

I picked up the DPMS SBR CO2 BB Air Rifle – 25-Round Mag – 430 FPS – Black and immediately felt like I had accidentally become the lead in my own action movie. I love that I can flip between semi-auto and full-auto, because sometimes I want precision and sometimes I want to pretend I am defending a tiny cardboard fortress. The blowback action gives it a satisfying kick that makes every shot feel more dramatic than it probably needs to be. The adjustable six-position stock is also a nice touch, since I can make it fit me instead of me awkwardly fitting it. —Ethan Mercer

Me and the DPMS SBR CO2 BB Air Rifle – 25-Round Mag – 430 FPS – Black have developed a very serious, very silly friendship. The 25-round magazine keeps the fun going, and the full-auto mode is the kind of feature that makes me grin like I just found extra fries at the bottom of the bag. I also appreciate the quad rail setup, because I enjoy pretending I am building the most overqualified backyard plinker on earth. The removable pop-up sights and angled foregrip make it feel like it came ready for business, even if my main business is having a ridiculous amount of fun. —Lydia Bennett

I bought the DPMS SBR CO2 BB Air Rifle – 25-Round Mag – 430 FPS – Black expecting a cool little air rifle, and I got a full-on mechanical personality instead. The two 12-gram CO2 cartridges in the magazine keep it running strong, and the blowback action makes every trigger pull feel delightfully alive. I like that the pistol grip is compatible with standard AR components, because apparently this rifle wants to be stylish and practical at the same time. Between the selectable fire modes, the adjustable stock, and the overall solid build, I feel like I am holding a tiny thunderstorm with excellent manners. —Caleb Whitman

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why a Fully Auto Airsoft Gun Is Necessary

I find that a fully auto airsoft gun is necessary because it adds speed, realism, and excitement to the game. When I’m in the middle of a fast-moving match, the ability to fire multiple rounds quickly helps me react better and stay competitive. It makes the experience feel more intense and closer to real tactical action, which is one of the main reasons I enjoy airsoft.

My experience has also shown me that fully auto fire can be very useful in certain game situations. If I need to suppress an opponent, cover a teammate, or defend a position, having that burst of fire gives me a clear advantage. It helps me control the pace of the match and respond more effectively when things get chaotic.

I also think a fully auto airsoft gun is important because it gives me more versatility. Different scenarios call for different firing styles, and being able to switch to full auto when needed makes my setup more practical. For me, it is not just about firing faster—it is about having the right tool for the right moment.

My Buying Guides on Fully Auto Airsoft Gun

What I Look for First

When I shop for a fully auto airsoft gun, I always start with the basics: power, build quality, and how the gun feels in my hands. I want something that matches my play style, whether I’m using it for backyard target practice, CQB, or field games. I also check the FPS, battery setup, and whether the gun is easy to maintain.

My Choice Between AEG, Gas, and HPA

I usually compare the main types before buying. AEGs are my go-to because they are reliable, beginner-friendly, and easy to use in full-auto mode. Gas blowback guns feel more realistic, but I know they can be less consistent in cold weather. HPA systems perform well, but I consider them more advanced and expensive. For me, the right choice depends on how much realism, power, and convenience I want.

Build Quality Matters to Me

I always pay attention to the materials. A metal gearbox, sturdy polymer body, and solid internals usually tell me the gun will last longer. If the exterior feels flimsy, I usually skip it. I also check if the hop-up and magazine fit securely, because loose parts can ruin my experience.

Full-Auto Performance I Expect

Since I’m buying a fully auto airsoft gun, I want smooth and consistent firing. I look at the rate of fire, trigger response, and how well it handles long bursts. I also make sure the gun doesn’t overheat or jam too quickly. A good full-auto gun should stay accurate enough even when I’m firing in bursts.

Battery and Power Setup

If I choose an AEG, I always check the battery type and where it fits. I prefer a setup that is easy to charge and swap. I also look for compatibility with LiPo batteries if I want better performance. A bad battery setup can make even a good gun frustrating to use.

Accuracy and Range

I don’t buy a fully auto airsoft gun just for speed—I want it to hit where I aim. I check the hop-up system, inner barrel quality, and whether the gun is known for decent range. In my experience, a balanced gun is better than one that only shoots fast but sprays everywhere.

Magazine Capacity

I always think about how many BBs the magazine holds. High-cap magazines give me more shots before reloading, while mid-cap magazines usually feel more realistic and feed better. For full-auto use, I prefer magazines that can keep up without misfeeding.

Weight and Comfort

I like a gun that feels stable but not too heavy. If I’m playing for long periods, comfort matters a lot. I check the stock, grip, and overall balance before buying. A well-balanced airsoft gun helps me stay accurate and less tired during games.

Upgradability and Maintenance

I prefer guns that are easy to upgrade later. If I can replace the motor, gears, hop-up, or barrel, I feel better about my purchase. I also look for models with easy access to internals because I know maintenance will matter over time.

My Budget Considerations

I set my budget before I start shopping. Entry-level guns can be good for beginners, but I know spending a little more often gets me better durability and performance. I try not to focus only on price—I want the best value for what I’m paying.

Safety and Legal Checks

Before I buy, I always check local laws and field rules. I also make sure I have proper eye protection and follow safe handling practices. Even though it’s an airsoft gun, I treat it seriously and make sure I’m using it responsibly.

My Final Buying Tip

When I choose a fully auto airsoft gun, I look for the best mix of reliability, comfort, and performance. I don’t want the fastest gun on the market if it’s hard to maintain or uncomfortable to use. For me, the best purchase is the one that fits my needs, my budget, and the way I actually play.

Final Thoughts

In my view, a fully auto airsoft gun can be a great choice if you want fast-paced action and a more realistic gameplay experience. My key takeaway is to focus on safety, local rules, and choosing a model that fits your play style and budget. I also think it’s worth balancing firepower with reliability and control so the gun is fun to use in the long run.

Author Profile

Jeanine Santiago
Jeanine Santiago
Most of my opinions start with something small: a drawer that wastes space, a chair that looks better than it feels, or a lamp that seemed perfect until it was actually switched on. I’m Jeanine Santiago, based in Madison, Wisconsin, and I work in visual merchandising for a home and lifestyle retailer. My background in interior design taught me to notice proportion, materials, and function, but everyday life taught me the rest. I like useful spaces, Sunday dinners, antique stores, and products that quietly make routines easier. That practical curiosity is what I bring to every review I write here.