New Low Cost QB78 Scope Combos Now Available.

New at Archer Airguns are two new air rifle scope combos; one for the QB78, the other for the QB78 Deluxe.

The QB78 air rifle scope combo includes a QB78 air rifle in either .177 or .22 caliber, plus a 3-9 x 32 scope and low mount rings. This combo sells for just $109.99. All you need to do is to mount the scope and rings following my instructional videos on YouTube.



Also available is a QB78 Deluxe scope combo. This combo includes a QB78 Deluxe, together with a 3-12 x 40 scope and low rings. This combo is just $123.99. You can see it in the photograph below.



Both the 3-9 x 32 and 3-12 x 40 scopes are bargain priced. They have fixed focus, however it's possible to adjust this on a "one time" basis by removing the front ring of the scope and carefully turning the lens. This can reduce the minimum focusing distance considerably, if you wish. Both scopes are supplied with "bikini" lens covers and covers for the click-adjustable elevation and windage turrets.

These scopes are also available separately. In this way they are ideal for use with existing CO2 air rifles such as the QB78, QB79, Tech Force TF78, Umarex Fusion and Xisico XS60C. The photo below shows the 3-12 x 40 scope.



The 3-9 x 32 scope is shown here...



Fitted to the Fusion, the 3-12 x 40 scope looks like this.

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How To Upgrade a Umarex Fusion Air Rifle With an Oversize Bolt Handle.

Archer Airguns Oversize Bolt Handle for the Umarex Fusion makes operating this air rifle feel much easier. This post explains how to make the upgrade for this popular CO2 air rifle.

Below. The Umarex Fusion Oversize Bolt Handle in place and ready for use.



SAFETY FIRST! Ensure that the air rifle is not loaded, has no pellet in the barrel and has no CO2 in the gas tube before working on your air rifle. As you can see, I removed the tube cap to ensure that the air rifle could not fire accidentally.

First remove the safety lever by undoing the small Philips screw in the underside of the lever. Now pull off the lever from the safety tab. DO NOT MAKE ANY CHANGES TO THE TRIGGER OR SAFETY ASSEMBLY. Next, remove the front stock screw. This is the Philips screw in the underside of the stock, directly below the barrel band.



Now remove the rear stock screw. This is the Philips screw immediately to the rear of the trigger guard. Note that the trigger casing cover will also come away when this screw is removed.

Ensure that the safety tab is aligned (forward) with the cutout in the stock. The action can now be pulled up, forward and out of the stock. Note that this is a little tricky and requires some “wriggling” to achieve. Be patient and careful, it will come out!



Now loosen the setscrew in the end of the bolt and remove the factory bolt handle. Install the Oversize Bolt Handle in the side of the bolt with the lock hole facing the rear and tighten the bolt setscrew. The setscrew must engage firmly in the hole in the bolt handle.







Return the action into the stock, replace the front and rear stock bolts, together with the trigger casing cover. Now replace the safety lever and fix it in place using the small setscrew.



TEST OPERATION BEFORE LOADING AND FIRING THE RIFLE FOR THE FIRST TIME! NOTE THAT INSTALLING THIS PART WILL INVALIDATE THE WARRANTY ON YOUR AIR RIFLE.

Now your Umarex Fusion has a smart new upgrade that makes operation easier!

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Archer Airguns Replacement Tube Cap Fixes Problems with Umarex Fusion and Xisico XS60C

I’ll go on record as saying that the Umarex Fusion - and its very close cousin the Xisico XS60C - is a very innovative CO2 air rifle with some excellent high-level design concepts. I like it!



But it’s sad to see that there are often some major issues with this air rifle as it is currently shipping. These have been highlighted in several places on the Internet, and a number of customers have written to me asking for help. Basically the problems are:

1. The guns can leak unacceptably. Leave it gassed-up and 24 hours later it’s probably empty. This is in stark contrast to QB78-type air rifles which can remain gassed up for weeks - and even months - at a time.

2. The tube cap is very complex. It’s confusing to operate and you may need to wait as long as an hour after releasing the CO2 from the gun before it’s possible to remove the tube cap. Again, this problem does not exist with QB78-type air rifles.

3. The tube cap O ring is very soft. It swells like a balloon when the gun is gassed-up and is quickly damaged by blistering and cracking when the tube cap is removed - this leads to further leaking. These O rings can have a very short life before they require replacement. The QB78? Guess what? No problem.

Again, I want to say that I think the degassing tube cap fitted to the Umarex Fusion and Xisico XS60C is an outstanding and innovative concept. But somehow it’s just not up to the task at hand. My testing shows that the tube cap is THE major source of gas leaks from the Fusion and XS60C, and then there’s the issues about the O ring which is the cause of difficulty in removing the tube cap itself.

So........

Archer Airguns introduces a Replacement Tube Cap for the XS60C and Umarex Fusion Air Rifles!



The Archer Airguns Replacement Tube Cap overcomes the leak issues, allowing these guns to remain gassed up for an extended period.

It’s very simple to use. Just screw it on and unscrew after use. There’s no need to wait after the CO2 is used before removing this tube cap.

It uses a different, harder, O ring that swells much less, doesn’t blister and crack with use. Yes, it still swells in use, so we supply a spare O ring with this tube cap. Simply roll off the swelled O ring, roll on the new one, gas up your Fusion or XS60C and keep shooting! The swelled O ring will return to size and can be used again by the time you need to reload with Powerlets.

The only downside is that there’s no degassing capability with this tube cap (although some would say that’s another benefit!). Again the solution is very simple, just “shoot down” the remaining CO2 in the gun in the time-honored fashion, as has been done with generations of Crosman 160s, QB78s and similar CO2-powered air rifles.

If you still want to keep with the factory tube cap, you’ll be needing replacement O rings!

So, Archer Airguns offers a pack of O rings for the Umarex Fusion and XS60C Air Rifles. These are for use on the degassing tube cap as replacements for the orange O ring supplied with the gun. These black O rings are the same as used with our replacement Tube Cap, they swell less and resist blistering and cracking much better than the factory O rings.



You may be asking “Why not fit O rings that don’t swell at all?” The reason is that these O rings - typically hard urethane ones - will not allow any current tube cap design to be fitted into the gas tube of the Umarex Fusion or XS60C air rifles. This is due to the design of the main gas tube itself, which will not allow hard O rings to be pushed into the end of the tube - that’s why the factory supplies those problematic soft O rings in the first place!

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