Entries in Modification

Entries in PPK

Worlds Smallest Full Auto BB Gun - How it All Begun

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Replica Airguns takes a step back in time to share how everything began, long before the channel, website, and stores grew into what they are today. The journey started around 2006, just a year after YouTube first launched. At the time, online video was still in its infancy, with low-resolution clips, shaky footage, and minimal production quality being the norm.

Mike created the very first video simply for fun. It featured a modified Umarex Walther PPK BB gun that Mike had altered for full-auto shooting. Edited in iMovie on a Mac and uploaded in low resolution (under 640×480), the video wasn’t intended to be anything more than a casual experiment. However, after sitting online for a few months, it unexpectedly reached around 100,000 views, an impressive number for that era, when far fewer creators were uploading content and viral videos were rare.

That early success revealed something important: there was real interest in Airguns and BB gun content. From there, Mike purchased more Airguns (to his wife’s disapproval), more videos were created, and the foundation for a focused channel began to take shape. A few years later, the project became more serious, evolving into a dedicated platform and eventually transitioning into the Replica Airguns brand you see today!

Over time, the brand expanded into multiple websites, ReplicaAirguns.com, ReplicaAirguns.ca, and ReplicaAirguns.us, along with a large video library. Although the channel faced setbacks, including being removed from YouTube at one point, the content continued to live on through platforms like Vimeo and Rumble. Now, with nearly all videos being restored back to YouTube, the library is close to fully rebuilt.

The original video that started it all was thought to be lost for years, buried on old storage drives. Recently rediscovered, it has been enhanced using modern AI tools to improve clarity while still preserving its original look and feel. Despite its dated quality, it represents the true starting point of the Replica Airguns journey.

For viewers interested in Airguns, including BB guns, Airsoft, Pellet guns, and more, the channel and websites continue to offer extensive content and product availability across both Canadian and U.S. online stores.

Categories: 4.5mm / .177 cal, BB, Blowback, CO2, Field Test, Full Auto, Full Auto Fun, Modification, Pistol, Replica Airguns News, Semi Auto, Vimeo Video, YouTube Video Tags: PPK/S, PPK, Umarex, CP99

Umarex PPK 4.5mm Steel BB Modified Full Auto Fun

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Some more Full Auto Fun Videos coming at you and make sure to check my previous ones out too!

In this Full Auto Fun Field Test Shooting video I bring out my original Umarex Walther PPK Blowback CO2 BB Pistol. The PPK I converted to full auto and that started it all off by being my first YouTube video upload. Wow, that was a while ago now!

I do have to say, modifying the PPK to Full Auto is not recommended, mine originally worked well but the heavy blowback in full auto eventually broke the firing pin setup and I lost it somewhere in my back field. I had to Macgyver a bolt in place to kind of work but now my Full Auto Modded PPK shoots out of control, what I mean by this is when I press the trigger, it does not stop shooting until all the BB's are gone. Safe, I don't think so!

My suggestion is to leave the Umarex Walther PPK as is, it truly is a an awesome CO2 Blowback BB replica with some really decent blowback recoil in a small airgun.

 
Categories: BB, Blowback, CO2, Field Test, Full Auto, Full Auto Fun, Modification, Pistol, Review, Semi Auto, YouTube Video Tags: PPK, Umarex, Walther

Umarex Walther PPK CO2 Tab Modification Tutorial

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After many many requests to show how the Umarex Walther PPK CO2 Tab Modification is done I have relented to public demand. I don't actually cut my tab in this PPK CO2 Tab Modification Video but I do go step-by-step in detail and compare my modified Umarex PPK to my unmodified Umarex PPK. It is really very basic on how this is done and only a hack say and perhaps a file are all that is required to make the modifications to the PPK CO2 tab in order to make it flush with the bottom of the handle area.

Your best bet is to simply watch my YouTube Video located below and follow the steps there but here it is in text form:

  1. Place an empty (already pierced) CO2 into your Umarex Walther PPK and tighten the unmodified CO2 tab until fully tightened, just like you would tighten a fresh CO2.

  2. Take note at how many threads are exposed between the bottom of the handle and the top of the plastic CO2 tab, there should be about 2-4 threads exposed.

  3. Unscrew the CO2 tab all the way, place the PPK BB Pistol so it is secure (in a vice of some sort) and use a hacksaw or dremel to shorten the CO2 screw just above the plastic tab at the thread location you previously noted. Be conservative as you can always cut or file the screw a bit shorter if your first cut was not short enough.

  4. Now use the same hacksaw or dremel to cut a notch in the exposed cut area of the CO2 screw so that you can use a slot screwdriver to tighten the CO2 screw.

  5. That's it - Enjoy your modified Umarex Walther PPK CO2 BB Pistol!

Watch my Vimeo Video of the Umarex Walther PPK CO2 Tab Modification Tutorial:

Categories: 4.5mm / .177 cal, BB, Blowback, CO2, Comparison, Modification, Pistol, Semi Auto, YouTube Video Tags: PPK, Umarex

Umarex Walther PPK/S CO2 BB Gun Chronograph - Shooting & Slow-mo

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Another filed test video in the series. This one is of the Umarex Walther PPK/S CO2 4.5mm BB pistol, I show you both my regular unmodified all black PPK/S and shoot it through my Chrony Chronograph with an averaged reading of 282 FPS, not bad considering the manufacturers claim is 295.

I also shoot 8 rounds with my stock Umarex PPK/S at a target to see what kind of accuracy I get, and just for fun I shoot a 15 round magazine into the same target with my modified fully-auto sliver slided PPK/S.

To finish things up, I slowdown the action just a bit using my high speed Casio camera to capture the blowback action of both my stock and modified Umarex Walther PPK's.

Enjoy my YouTube Video of my Umarex Walther PPK/S CO2 BB pistols getting Chronographed, shooting at a target and slowed down a bit with my High Speed Camera.

Buy this gun in Canada   -   Buy this gun in the US

Categories: 4.5mm / .177 cal, BB, Blowback, CO2, Comparison, Field Test, Full Auto, Modification, Pistol, Review, Semi Auto, YouTube Video Tags: PPK, Umarex, Walther

Worlds Smallest Full Auto BB Gun

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Related Posts:

This is a video I posted on YouTube a while back that has gotten a lot of views (Now Over 300,000). It's basically me and a friend shooting a couple of guns. The first set of guns (One in each hand - Tomb Raider Style) are two Walther CP99 Compacts made by Umarex. The CP99 Compact is a great little BB gun with a very fast and light trigger pull.

Next up is another Umarex product, a Walther PPK. This one is moded to fire Full Auto, making it one of the smallest Full Auto BB Guns. Too bad it's all over so fast! I'll look at doing some proper reviews of these fine Airguns down the road...

Categories: 4.5mm / .177 cal, BB, Blowback, CO2, Field Test, Full Auto, Modification, Pistol, YouTube Video Tags: CP99, Compact, PPK, Umarex, Walther