by B.B. Pelletier


Logun’s S-16s has been adapted to CO2 by Pyramyd Air.

Let’s look at an air rifle backwards! What that means is that the Logun S-16s has been around for a few years, and we’ve not yet looked at it. But, now, Pyramyd Air offers an entire rifle set up for CO2 operation. That’s the rifle we will look at first. And, before I am asked for the umpteenth time about the possibility of a CO2 adapter for AirForce air rifle…yes, it’s in the works!

Why CO2?
Why would anyone pay $900 for a powerful PCP and then run it on CO2? BECAUSE THEY CAN! CO2 changes the nature of your powerplant, giving you a rifle that shoots slower for plinking, indoor shooting or just more shots without refilling. When I tell you how many more, you’ll be amazed. I was!

You lose nothing
Taking a PCP and converting it to run on CO2 doesn’t change the basic rifle in any way. If the barrel was accurate before, it still is. If the gun had a good trigger, that doesn’t change. All that changes is that the power drops. Depending on which gun you convert, the drop can be small or large. The thing to remember is this conversion doesn’t take anything away – it adds more functionality to your investment. Imagine that you could drive your car on diesel fuel, kerosene, jet fuel and gasoline. The military pays a bundle for truck engines that do just that. Well, Pyramyd has found an affordable way for you to so the same thing with a PCP. Enough generalities; let’s get specific.

The S-16s
The heart of this rifle is a Logun S-16s. Logun meant for it to operate on air, and they meant for it to be a fine PCP rifle, so all those characteristics will translate to CO2. It’s a 16-shot repeater with a special magazine holding two 8-shot circular clips. It’s got a lot of steel in the frame, so the weight is very substantial at 8.25 lbs. The conversion kit takes the weight up over 9 lbs. with a 20-oz. CO2 tank installed.


16-shot magazine holds two circular 8-shot clips.

Trigger!
The trigger is very heavy. After I adjusted it as light as it would go, it still required 10 lbs. to release. It’s crisp and creep-free, but if you’re anticipating a light trigger-pull, this rifle doesn’t have one.

Pressure gauge
There is a pressure gauge built into the back of the rifle’s receiver, so it works with the CO2 adapter, too. Although it isn’t marked for all pressure levels, it’s close enough that you’ll know when the tank needs to be changed.


Although not marked for all pressure levels, the Logun gauge does a good job with CO2.

Quiet
The S-16s uses a shrouded barrel for quieter operation. I’ve tested it only with CO2 thus far, and the discharge noise is about equal to that of a powerful spring pistol. It’s certainly much quieter with the shroud in place than with the barrel exposed.

Many shots
In fact, I didn’t believe how many shots were possible when I first did the math. With a 20-oz. tank installed you will get over 1,000 shots per fill! In fact, the number is so high that nobody will probably ever test a tank until it’s empty – it takes too long! Now you see the advantage of operating the gun on CO2. Of course, the power is less; but, if all you’re doing is plinking, what do you care?

Inexpensive to convert
If you already own an S-16s, all you need is a CO2 adapter and a CO2 tank. Pyramyd Air sells 12-oz. and 20-oz. tanks, and they can even ship it to you already filled! What a wonderful way to enjoy your PCP even more.

In the future, I’ll show you the accuracy and velocity on CO2, plus we’ll also test the rifle with air. It should prove interesting!