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Legends M3 Grease Gun

Available in .177
Sale $199.99
  • Save $50.00 (20%)
  • Reg Price $229.99
  • Code: AGD-534110801 · $199.99 · .177 · 450 fps
Estimated in stock date is 06-19-24
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The Legends M3 Grease Gun takes a classic .45 cal warfighting submachine gun and turns it into an incredibly authentic airgun copy that gives you almost identical look and feel when compared to the original. It's based on the later M3A1 variation and let you shoot at speeds up to 450 fps with a rate of fire of 1025 BBs per minute, so you can experience what these guns are like without having to go through the expense and hassle of trying to find a real steel model.

One of the first things you'll look for if you're an enthusiast is the flip open dust cover and the hole in the bolt that you use to cock it, and both of those features are included on this airgun. That's the main upgrade over the original M3, and it means you don't have to worry about a crank cocking lever.

With this version, you just put your thumb in the hole to cock the bolt, and then either hold the trigger down, or pull it as fast as you want, depending on whether you have it set to full auto or semi auto. Plus, the gun features blowback action, a drop free stick magazine, and a collapsible wire stock to give you a look and feel that's very close to the original version.

This airgun uses two 12 gram CO2 cartridges, and you'll get to shoot about 120 BBs (4 magazines) on fresh cartridges. For sights, the Grease Gun uses a fixed blade front sight and a fixed peep style rear sight.

If you want to find out what it's like to use a gun from history in an affordable full metal CO2 version with the same features as the firearm model, get a Legends M3 Grease Gun at Airgun Depot Now.

Legends M3 Grease Gun Features:

  • .177 cal
  • 450 fps
  • Semi auto or full auto
  • Blowback action
  • Full metal
  • 60 round drop free magazine
  • About 120 BBs (2 magazines) per full CO2 charge
  • Rate of fire: 1025 BBs per minute
  • 3 position manual safety
  • Peep style iron sights
  • Flip open dust cover
  • Collapsible wire stock
  • Thumbhole charging slot on bolt
  • Uses two 12g CO2 cartridges
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  • ManufacturerUmarex
  • Caliber .177
  • Velocity 450 fps
  • Condition New
  • Ammo Type BBs
  • Action Semiautomatic/Full-auto
  • Barrel Style Smooth bore
  • Fire Mode Repeater
  • Gun Weight 7.70
  • Overall Length 29.80
  • Barrel Length 8.00
  • Loudness 3-Medium
  • Magazine Capacity 0
  • Mechanism CO2
  • Rail No
  • Safety Manual
  • Front Sights Post
  • Rear Sights Adjustable for elevation
  • Shots per Fill 120
  • Trigger Adjustability 0
  • Trigger Action 0
  • Use Plinking/Fun
  • Warranty 1-year limited warranty
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Average Customer Review
4.536 Reviews
81% (29)
11% (4)
3% (1)
3% (1)
3% (1)
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By RobertFebruary 3, 2024 Verified Purchase

It is just perfect, I like everythingng about it


By DerekUSAJanuary 14, 2024 Verified Purchase

I like WWII collection. As a collector of military firearms, I purchased this because i cant afford the real thing. I also purchased the MP40 for the same reason. Please make an MP44 / STG44 as that is the holy grail for collectors and would be a must have.

Feels nice / good quality. Solid and heavy. Looks great. Everyone I have shown it to has been very impressed.


By Uncle_JamesDecember 12, 2023

If you want a speed loader, have a friend or print one yourself on a 3D printer, go to Thingiverse and search for Umarex MP-40. This is NOT my design but it works great. I use a hair streach band to hold it in place while I pour the BB into it.

All metal, has some weight to it, well made. Fun to shoot.

Magazine needs a notch at the bottom so the spring follower tab can be locked back so it will be easier to load.

By Bill September 4, 2023 Verified Purchase


Looks great Heavy and feels realistic

Doesnt seem to have much power even with new co2 cartridges

By A LeeAugust 13, 2023

Quality very good. Even the internal barrel appears to be metal

Fun! I do place a dime between the two c02 cartridges to assure adequate piercing. Can use one empty cartridge if only want to shoot 1-2 magazines.

Depending on brand of CO2, may need to use "dime" back to get to pierce cartridge. This is especially true if using one empty cartridge.

By SimonJuly 2, 2023

This gun is a Blast. Bought to get rid of the squirrels in the loft. Full Auto is Fantastic.

Nothing wrong with this gun. Only thing i would change is the mag capacity. Make it hold more as 60 shots on full auto is over in about 3 secs

By jsherman665April 3, 2023 Verified Purchase

I am a 75 YO Vietnam veteran. I like the real thing, I've had them, but the BB equivalent sure does fits the bill, and it reasonable to shoot. I also like the airsoft rifles and have quite a few.

Wow, this is a great product. I have the MP40 also and the M3 is much like it in how it functions. Pay attention to loading the magazine, do it one BB at a time and use good BBs, esp. the Umarex. Believe it or not, they are better than other brands and will save you a lot of time and frustration loading the magazine.

I don't know, I really like this item. I am 75 YO and still get a kick out of these items. The squirrels will tell you that they don't like them though.

By GregMarch 27, 2023 Verified Purchase

I carried the real deal M3A1 .45 sub through Germany, Korea 1974-78 as an M601A1 and M551 crew member. Loved that crude lil shooter. THIS replica in .177 BBs is the closest Ive found to the real M3A1. Love love love the appearance and operation. You will not be disappointed. Buy with confidence.

Authentic appearance, authentic weight, authentic operation (single shot capability!).

No offer of a combo package: extra magazine, sling, and flash hider add-on.

By BillFebruary 22, 2023 Verified Purchase

Great gun at and reasonably price, plus fast shipping and great customer service.

The gun is an exact replica of the ones carried in Vietnam and would fool anyone who looked at it into thinking it was real. Heavy and well made with the look and feel of the original M3.

I wish the magazine held more BB's because it takes only about 17 seconds at full auto to empty it.

By HerbFebruary 21, 2023 Verified Purchase

Looks solid and built to last

Magazines seated too deeply into the gun so that it interfered with the function, was not able to use it at all..

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Hello, is the Legends M3 Grease Gun shippable to Canada?? THANKS.

asked Eric from Canada

Yes, this is rated below 500fps.

Adam from USA

Does the magazine detach? If so can you buy extra magazines and load them?

asked Curtis from USA

Drop free magazine means it does detach. And with most Umarex Legends replicas spare magazines are available if you look online. I have the Umarex Legends M1A1 and the Umarex Legends MP40 and the Umarex Legends m712 which are all fully auto capable BB guns. And with regular maintenance and having a bit of a touch for running the system I have never had a problem. They are awesome.

Timothy from USA

Got my M-3, the gun works fine but the magazine does not feed well at all, tends to jam after one shot. I imagine other users have experienced this problem - any suggestions?

asked Douglas from USA

With these types of magazines, if while firing you hold the gun by the magazine you can interrupt the action of the follower which pushes the BB's up into the chamber. This happens especially after the first one or two shots. Check the front of your magazine where the follower and the spring are. The follower which is the small plastic piece behind the spring may be hung up and if you tap it it will release and continue to send BB's towards the chamber.

Timothy from USA

Hello, Zabby_do here. Is this "Legends M3 Grease Gun" made in China or Japan? Zab

asked Robert from USA

Made in Taiwan

Troy from USA

Does the screw on bottom of hand grip come off or unscrew like originals for the oilier. Thanks

asked Terry from USA

How and at what shop can I find the correct sling? (NOTE. I was issued one in Force Recon, USMC)

asked Force Recon-USMC from USA

I have found replica slings at Epic good ol' Amazon.

Timothy from USA

Semper Fi from 1st Force Recon

Terry from USA

M1 Carbine sling was what was initially issued per my research (along with the same oiler in the handle for this model - unsure if the Umarex allows access - on the side for the earlier model that had the cocking handle). They can be ordered on a ton of places online - run a search like "m1 carbine sling for sale"

Timothy from USA

Is this gun are the real gun or just for game

asked John Griffin from Papua New Guinea

It's understandable I peop need to purchase an airgun for "pest control" , rat an the like but, just to shoot people or animals for fun, this gives arguments a bad name. We as airgun enthusiasts and collectors respect our airguns as real weapons. We handle our airguns in the same fashion as a real firearm. These are NOT toys. The can cause serious life threatening injuries to humans as well as animals. If a person wants to shoot as a toy, get "airsoft". However, even those should be handled safely and with respect. To buy an airgun inexperience can hurt yourself and others. No matter the firearm always learn about the gun and safe handling or, "you'll shoot your eye out kid"..

Walter from USA

Read description and the Specifications...They should always be read before purchase...

Walter from USA

You forgot about the part; ...."and you'll shoot your eye out ! "


This is a .177 caliber bb gun, it is used for shooting targets only. Shooting people or animals with this would be cruel, it would hurt small animals severely and cause significant pain, the same goes for people.

Jeffery from USA
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