The Crosman-M4-177-Pneumatic: Good For a Little While At Least

The Crosman M4 .177 air rifle is a pretty good gun with some pretty good features. The problem is that it really isn’t something that is going to last you for very long. Reports keep coming in about this particular model and, while they are far from universal, they are certainly enough to give me pause and don’t sound that particularly implausible. In an attempt to do the best review possible, we’ll

Crosman M4 .177 Air Rifle

Crosman M4 .177 Air Rifle

go over the details.

Crosman M4-177 Pneumatic Pump Air Rifle (.177)


Let’s start with something really positive. The way that this weapon handles ammunition is fantastic. Essentially, it uses a 5 pellet mag strip that is fed into the rifle, which uses the bolt action to slide the new pellet into place. It’s a useful and satisfying system that I quite enjoy the thought of.

There is also a place in the stock where you can store 350 BBs and load them into the chamber by tipping the gun down, flipping a switch, shaking the gun a little to load a BB into the bolt, then closing the switch. It’s a little strange, but not terrible and almost makes the hole in the stock worth it.

Speaking of the stock, another benefit is that the stock is adjustable, meaning that it will fit a child or small person as well as it would a large adult.


Here is where this rifle starts to go off the rails. It was clear that Crosman was trying to thread the needle between price and quality by making this gun mostly out of plastic. It’s heavy, strong plastic, but it’s still plastic and it doesn’t seem to be able to handle the rigors of its own recommendations.

When you first get this rifle, it will feel incredibly solid, but more and more people are reporting that after a few months and sometimes a few weeks, the stock will break or the air chamber will spring a leak. It seems that if you limit yourself to roughly five pumps per shot, you can extend the life of this gun for a little while, but you end up sacrificing power, which shouldn’t be an issue when the manufacturer recommends 10 pumps. The gun just seems to blow itself out after a short time.


Something else that can be said about the Crosman M4 .177 is that when you first get it, it is remarkably accurate. In some cases, it’s pretty easy to get a grouping in 1 1/4 inches from 20 yards. It shows a lot of power in the first stages of use, especially if you’re using the maximum 10 pumps. However, this comes with caveats.

First, if you’re using the BBs or pellets that are not Crosman brand pellets, you’re unlikely to get very good accuracy out of it. The Crosman Destroyers fire fine, but everything else is pretty wobbly. It’s also very hard to find a scope that actually fits this particular weapon, and I can’t help but wonder what Crosman was thinking in making something this non-standard in that regard.

The sights that come with it are pretty miserable as well, and they seem to wiggle a bit too much to be useful. So while you can get an accurate shot from this particular weapon, it’s a struggle just to have the chance to do so. Not something that is going to make anybody particularly happy.


One thing I did like was that Crosman at least made use of the design choice by finding utility in what would otherwise be just decoration. For example, since it’s modeled on the AR15, it has a “magazine” in front. The temptation could be to use this as a handle with no other purpose, but instead they decided to make it a removable case where a small screwdriver (included) for adjustments and some extra pellet strips could be stored. Not a bad thought and one I appreciate.

– Pros

  • Well used design
  • Good early accuracy with right ammo
  • Great ammo and loading options
  • Looks cool

– Cons

  • Tendency to break quickly
  • Accuracy fails after a while
  • Hard to find scope or working sights

I understand what Crosman was trying to do with this rifle, but it just didn’t come off the way that they were hoping. In trying to make a less expensive gun, Crosman appears to have made just a cheap one. The best review I can give would be to say that you’re much better off getting a Crosman 760 Pumpmaster, which is basically this only less flashy and better made.



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