Crosman M4-177 Air Rifle

Crosman M4-177 bolt-action, 18-round, multi-pump air rifle with an adjustable stock, tactical sights and Picatinny rails for optics, lights, lasers and more.

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Children cannot own firearms for obvious reasons; but they can own the next best thing. The Crosman M4-177 is a multi-stroke pneumatic air rifle that is designed to look almost identical to an M4, and let me tell you, it looks really cool. I also want to stress again that this is an air rifle. It is not an airsoft gun, nor does it require the use of any C02 cartridges. This is a good, old-fashioned, hand-pumped air rifle. But enough about the boring stuff; you probably want to hear about the rifle itself.

As I mentioned, the Crosman M4-177 truly does resemble an M4. Just about every detail is present and accounted for. Starting from the back of the rifle, we first come to the buttstock, which resembles the USGI M4 six-position buttstock. This one, however, is only adjustable to five different positions.

Then we come to the receiver, which looks almost identical to an M4 receiver, only it is made from plastic. The amount of detail that went into this thing is staggering. From the mag catch button and the bolt hold open to the forward assist and ejection port door, this rifle looks great. The BB loading port, which holds 18 BBs, is cleverly designed to resemble the selector switch. Amazingly, the magazine well actually accepts a magazine, which is included and serves as a storage reservoir for extra BBs. The magazine will store up to 350 BBs. If you prefer to shoot pellets, the rifle comes with a pellet “magazine” that holds five pellets, which is inserted into the ejection port. If we move up from the receiver, we notice a flat top upper with an integrated Picatinny rail system as well as a removable rear sight that can actually be adjusted for windage. If you prefer, the rear sight can be removed and replaced with scopes and other optics, which are sold separately.

Next up is the handguard, which includes another Picatinny rail on its underside for the attachment of a vertical grip, which is sold separately. The handguard is where the pumping takes place. Speaking of pumping, it is probably about time I tell you how this air rifle works. As noted, the Crosman M4-177 is a multi-stroke pneumatic air rifle. This means that the rifle has a lever that must be pumped in order to compress air, which will serve as a propellant. The handguard (lever) is folded down and pumped back up in order to compress air, which is stored within the rifle. The rifle can be pumped up to 10 times before firing. Now, this rifle is also a “bolt-action” rifle in that there is somewhat of an operating handle on the right side of the receiver. After pumping, this handle must be retracted and pressed forward to load a projectile into the chamber. The trigger can then be pulled, which will release the compressed air and propel the projectile. Higher velocities may be achieved with more pumps.

Finally, we come to the front sight. The front sight, like the rear, is removable and can be adjusted for elevation. Additionally, you will find a third Picatinny rail that provides a space for mounting lights, lasers and other attachments.

That is pretty much all there is to the Crosman M4-177. Anyone that is interested in firearms at a young age would be overjoyed to receive an air rifle like this one. You may consider this air rifle for any of the following:

- Hunting

- Pest control

- Recreational shooting (plinking)

- Air rifle competitions

- Much more…

Overall Rating
Good Buy
Review by Timothy
Great BB gun to start your kids off with.
Overall Rating
An excellent pellet rifle
Review by Surculus
O.K., here's the straight scoop: this is basically the venerable Crosman 760 in fancy dress. Can you find the 760 for less? Absolutely: if you're diligent, you can probably find a 760 for about 1/2 the price. But the M4-177 is the better buy. ["Huh? Come again? Why is that?"] Because you get the same basic, tried & true mechanism of the 760 wrapped up in the superior ergonomic package of the M4 (AR-15) that this is dressed up as! What about the latest spiffy costumed crusader from Crosman, the MK-177? It's the 760 dressed up as the ACR, but it's nowhere near the value of the M4-177, & here's why: the MK version comes w/ fixed stock [& a too-short LOP for adult users] vs. the adjustable stock on the M4- and the mag is a molded-in-place faux unit, so it has no additional storage like the M4-177. Crosman also messed up on the MK- by putting the cocking handle on the opposite side of the receiver from the tab used to advance the little strip mag that holds the pellets; it doesn't matter if you're shooting BBs, but as another reviewer already pointed out, if you're only using BBs, you're missing the point of the exercise. & btw, it costs more than the M4 [Really? Yup. More. Go figure.] Both the M4- & MK-177 come with functional peep sights; the 760 only comes with rudimentary open sights. As a multi-stroke pumper, you can vary the power output of the M4-177 as needed. [Don't worry, the clacking sound is normal: some well-placed foam tape should help quiet it down. That's the price of a mostly hollow plastic shell.] Regardless, there's a well-established community out there of folks into modding the basic powerplant of the 760 rifle & 1377C pistol for MOOOOORE POWERRRRR if you feel like going down that path. Just remember to buy some dayglo orange spray paint and paint the "flash hider" on this bad boy orange, so the po-po don't think you're a terrorist when you're out keeping the local grackle population in check... It looks that close to the real deal. ;-)
Trust me, if you're looking for a .177 caliber air rifle to keep your marksmanship skills fresh while you're waiting for this interminable ammo drought to end, just buy this one. You won't regret it!
Overall Rating
Review by TTAGer
This is basically a Crosman 760 Pumpmaster in a new shell. Hence, it functions just like a 760--flawlessly. This is a great BB gun for young shooters.
Overall Rating
Great gun!
Review by Gerri
I purchased one of these in February of 2012. For months, I ran standard BBs thru it, and kept wondering, "Am I really that bad of a shot?". My target hits were scattered and never consistent.

Finally, in mid August, I finished the last of the BBs in the magazine, and started shooting pellets. Well, guess what? My accuracy improved 1000%! I actually CAN shoot as good as this gun shoots. Currently, I am considering purchasing another M4-177, and use it for nothing but pellets.

And it is good practice for when I go to the gun range with my firearms. The techniques I practice with the M4 are the same when I am shooting my Springfield M-1A. Well, except the
M-1A kicks a bit more.

If you are thinking about getting an M4, quit thinking about it and BUY ONE! You won't be sorry.
Overall Rating
I really like the rifle overall
Review by Softairbuster
I ordered this weeks ago and it came quick. It is super lightweight. I employ it with my airsoft m9 and get much props with it. You have the option in shooting the rifle with either pellets or BB's. Enclose in the box is a rifle, 1 pellet clip, and a set of iron sights. The telescopic butt stock has 5 lock position and can be remove to be carried around like a close quarter combat weapon. The rifle has four picatinny rails to add scope, forward grip, laser, and light or in combination. In my opinion the value is awesome, Crosman is awesome. And the quality is great, keepshooting makes sure you get a dependable model. THanks guys!!!

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