Evike.com are taking pre-orders for the G&P MK18 equipped with the PolarStar Jack HPA Engine. They are expecting this to be available this month... "G&P, a leader in the AEG market and PolarStar, the leader in the HPA market have joined forces to bring a new type of HPA powered Airsoft gun to the market. The R3, the result of their collaboration, makes HPA easy to use. Gone are the massive external tanks and long, awkward hoses.

Gunfire are now shipping Specna Arms airsoft guns that come equipped with the PolarStar Jack HPA Engine... "We are introducing Specna Arms HPA replicas with PolarStar engines! Externally, these are the well-known and highly valued Specna Arms replicas made of durable zinc and aluminum alloy, reinforced with steel elements in the most vulnerable points. What about internals? The heart of the replica is the US PolarStar Jack M4 engine which was entirely designed, manufactured and built in the United States.

PolarStar Airsoft shares the photos of their latest venture, complete HPA-powered airsoft guns with G&P... "Check out these shots that G&P posted up of the rifles they are building! We've been consulting on this joint project to develop their rifles which incorporate our JACK system and a integral regulator which allow the HPA air tank to be threaded directly into the back of the receiver. Pretty slick looking!"

Jonathan Higgs of Airsoftology got two HPA engines from PolarStar Airsoft the F1 and the Jack. For this review, he installs and compares them to find out which gives a better performance or which can give the most value for the player looking for an HPA gearbox drop-in kit. Which do you think gives the better value?

Evike.com are taking pre-orders for the EMG "Jack" Licensed Full Metal Advanced M4 AEG which they are expecting to be on their shelves in May 2017... "An Exclusive collaboration project between EMG and Sharps Bros. Firearm Design, the Jack Airsoft receiver accurately depicts the fine detail and craftsmanship of the real AR15 firearms receiver. The stunning and fierce details of the Jack really sets this apart from your average rifle and brings a whole new meaning to personal weapons customization.

A nice looking custom HPA-powered airsoft rifle from Airsoftjunkiez is available to order right now. The Airsoftjunkiez LVOA PolarStar Jack Wolfe Grey sports the LVOA look, which seems to be all the rage right now and with Wolfe Grey colour, gives it a nice touch and making it stand out (in a good way) amongst all these black tan airsoft rifles.

A video from Airsoftjunkiez showing their Airsoftjunkiez Custom MK18 PolarStar Jack Build. Custom built for you when you order, this video shows you the various components they used to produce this build... "Airsoftjunkiez MK18 build has all the internal upgrades needed to give you the best range and consistency."

We spotted this photo taken by Matthew Lerner and shared by Airsoft Junkiez on their Facebook page. Of course, this comes with a plug to visit their online store... "For all of the guys that have been to the Third Coast Airsoft events, you've most likely seen the Junkiez Humvee. On top is the Custom M1919A1 powered by the new version of the Polarstar Jacks getting ready to rek sum fools.

Need an airsoft machine gun that can lay down an effective suppressive fire for your team? Check out this one from Airsoftjunkiez and it can fire 45 rounds per second... "A&K Mk43 M60 Polarstar Jack upgraded custom box mag at Airsoftjunkiez.com shooting 45 RPS! Contact us today about Custom Work! The largest Selection of Custom HPA Guns."

Announced early this week, here now is the video showing installation of the Bingo Airsoft Designs MAC-10 Polarstar JACK Gearbox Replacement Kit... "This video demonstrates how to install the Bingo Airsoft Designs MAC-10 Polarstar JACK Gearbox Replacement Kit. The kit is designed for TM MAC-10 and JG MAC-10 AEP airsoft guns."