Commiebear Airsoft does a quick review of the RA-Tech GHK AK NPAS which is a recommended upgrade to GHK AK GBB owners... "Quick review on the AK NPAS:

RA-Tech presents three types of Magnetic Locking NPAS for the GHK AR Gas Blowback Rifle. According to them this has better freezing resistance and comes with a steel nozzle head​. Added benefits are savings in gas consumption, more consistent muzzle velocity, smoother feeding of BBs, muzzle velocity is adjustable. This has the patented RA-TECH magnetic locking system​.

Part 2 of Airsoft Mike's unboxing and review of the WE L85A2 New Gen GBB rifle is more about installing an NPAS for FPS adjustment... "Here it is, part two of my review of the WE L85A2 where I show you at least one out of the box improvement with the new gen WE L85A2 SA80 gas blowback and how I install an NPAS so you can adjust the FPS!

NOTE: I have left the front sight on for a reason! Part 3 coming soon! Check my Instagram for a bit more info about that!"

Here is a video showing an animation on how the new RA-Tech Magnetic Locking NPAS works. This update on the NPAS helps it solve the problem of the FPS going into lower settings. According to the company, this helps ensure a more stable FPS. This is primarily designed for the WE Airsoft AR Gas Blowback Series.

RA-Tech released video announcing their latest NPAS product for the WE Airsoft AR Gas Blowback Series. They have the Magnetic Locking NPAS to answer the problem of the FPS going to the lower settings. This ensures that the NPAS will provide a more stable FPS for the WE Airsoft AR GBB series.

Good news for owners of the Tokyo Marui M4 MWS Gas Blowback Rifle! The RA-Tech NPAS Kit is now available for it. The NPAS, once installed allows to adjust the FPS of the rifle to meet site limits. Good for those who need to increase or decrease power in quick way so you'll be within the allowed limits.

Arsanus does a tutorial video to help you install the RA-Tech NPAs into WE Airsoft M9 Gas Blowback Pistol... "An In-Depth Tutorial on how to install a RA-Tech NPAS into your Gas-Blowback Pistol. This method should work on most Tokyo Marui/WE Gas Blowback Pistols and WE Open Bolt Rifles.

The Airsoft Pistol shown in the video is a 'WE-Tech Full Metal M9 Heavy Weight Airsoft GBB Pistol'.

More SHOT Show 2015 photos, this time coming RA-Tech as they visited the show and other partners in the U.S. They have photos also taken with JRAK and ATEi at the SHOT Show as well. Plus bonus videos showing the RA-TECH NPAS aluminum nozzle for VFC AR series and the PolarStar Fusion Engine. They also visited AirSplat.com and Epower Sports after the show.

Product restock notice from RA-Tech as they now have again their NPAS, Steel Bolt Carrier, and the Forged M4 Receivers for the WE Airsoft M4 GBBs... "Dear Airsofters: Hope you are doing great and having fun playing GBB. Pleased to inform you that we have some items restocked and available now.  Listed as follows: