Nugentgl gives us an overview of the RA-Tech Custom GHK M4 W.S Type 16.5-inch gas blowback rifle for this video. This is kitted out with all the upgrade parts they can find from RA-Tech, New Age, and Angry Gun... "I received this from a friend to take a look at and give my opinion.  It is RA-Tech's new custom GHK M4 using a 7075 upper/lower with Warsport LVOA markings."

3D Printing is proving its value for airsoft players when they need a replacement part for their airsoft gun but cannot find any original or third party manufacturer spare available. Nugentgl shows his 3D printed spare part for the GHK PDW... "I had a GHK PDW come through my shop with a broken buffer assembly and since there are ZERO replacement parts I turned to a trusted 3D printing company, Sneakworks Pneumatics on Shapeways.

Check out this video from Nugentgl for those looking for other suppliers of custom Kydex holsters... "Finally found a reasonably priced custom kydex company! I didn't break the bank getting a OWB holster that will accommodate a Glock 19 with suppressor sights AND threaded barrel..."

Here is an overview by Nugentgl of the compact ATN Shot Trak-X HD Action Camera which you can mount on almost any shooting or hunting weapon. Here is the manufacturer description... "Designed by Shooters for Shooters, the Shot Trak HD mounts on any rifle, handgun, or bow to capture incredible color video of your target in full HD (1920 x 1080p).

Given the limited ammo capacity in airsoft gas magazines, airsoft players will need to watch their rounds fired or they will run out quickly. One way of avoiding it or slowing it down is to fire on semi-auto mod though sometimes you will accidentally move the switch to full auto. Nugentgl shows how to avoid it by modifying a GHK M4 Gas Blowback Rifle to fire in semi-auto only... "If you need to lock your GHK M4 to semi-auto only, then give this a watch..."

Nugentgl has another video showing you how to install the TNT Hop-Up Unit specifically designed for the GHK AK Gas Blowback Rifle and this includes the GBB hop-up bucking and the CNC'd hop-up chamber... "Overview and installation of the TNT hop unit for the GHK AK."

A comprehensive video review by Nugentgl detailing the hop-up unit comparing the GHK Hop-Up Unit to the GBL and the TNT Hop-Up units for the GHK M4 Gas Blowback. He explains his testing methodology, and does the tests in terms of FPS and accuracy. Also included is a preliminary overview of the TNT hop-up unit.

Will a Heavy Buffer Increase the FPS of a GBBR? What do you think? Nugentgl will answer this question in this video amongst the videos has created on airsoft gas blowbacks... "This statement is brought up from time to time so I thought I would examine this concept in my GHK M4 GBBR."

Find out if the GBL Captain America Hop-Up Unit can fit a GHK Steyr AUG GBB in this video done by Nugentgl... "um...yea, no! Maybe with a lot of machining it will fit but I don't think it is worth it. There is some scuttle butt that the new APlus hop unit for GHK M4 will fit with small mods..."

Nugentgl dives into the debate of which is better the gas to use for your gas-powered airsoft guns... "Hopefully this will shed some light for the ever living rumor that Propane shoots hotter than Green Gas or Green Gas is good for your GBB b/c it will lubricate it or Green Gas is more efficient than Propane or blah blah blah...