TECHNICAL: PERUN P90/AUG

BETTER DAYS

WE’RE VERY PROUD AT AA TO HAVE SUPERB RELATIONSHIPS WITH SOME VERY SPECIAL PEOPLE IN THE AIRSOFT WORLD, AND THIS TIME JIMMY BRINGS US PART 1 OF HIS LOOK AT THE NEW MOSFET TECHNOLOGY FROM THE PERUN CREW OVER IN POLAND! WHILST THE AUG AND P90 MAY NOT BE HIS FAVOURITE AEGS HE BITES THE BB AND GETS TO WORK LOOKING AT THE BENEFITS THAT THE NEW TECH WILL BRING TO A PAIR OF OLD “AIRSOFT WARHORSES”.

The genius’ over at PERUN have been hard at work yet again producing more of their very popular mosfets but this time something a little different. PERUN are a brand I love and a brand I can put faith in as I know from prior experience just how good they really are.

This time round though I feel a little out of my comfort zone as the latest products to hit the market are for two platforms that have never been on my radar and there are good reasons behind this. For one I do not like the look of these platforms, and two I hate everything about the two-stage triggers they adopt. If you haven’t already guessed I am talking about the Steyr AUG and the FN P90, but thanks to the clever folk at PERUN better days are indeed ahead!

For the purpose of research I shall put my opinions in a bag and zip them up because ultimately it’s not about me, it’s about you the readers, and I am sure that many of you all dying to find out more. In this issue I will give a brief overview of both the units followed up in the next issue with a full installation of both to see if they drop in and perform like those that have come before.

In the packets there are a lot more components compared to the hybrid series, so will be a bit more involved. Both units are of a different design, but both offer the user the exact same parameters; adjustment process is identical also, and both allow from 7v battery right up to a whopping 17v! The units will handle the power, but quite frankly nobody needs any more than an 11.1v for airsoft use!

PERUN design their units to be compatible with many platforms from different manufacturers, but with the same standards set out by Tokyo Marui, so you may find that some platforms aren’t as straightforward to work with and may need further alterations in order to get a perfect mating. The P90 mosfet will not fit into the G&G or the Krytac models,

“I HATE EVERYTHING ABOUT THE TWO-STAGE TRIGGERS THEY ADOPT. IF YOU HAVEN’T ALREADY GUESSED I AM TALKING ABOUT THE STEYR AUG AND THE FN P90, BUT THANKS TO THE CLEVER FOLK AT PERUN BETTER DAYS ARE INDEED AHEAD!”

and I cannot guarantee compatibility for all AUG gearboxes, so please do bear this in mind.

I am looking forward to getting these fitted and tested because the nature of the design uses optical and magnetic sensors, and doing so eliminates the need for both the P90 and AUG trigger bars to be completely removed, so goodbye mechanical monstrosity and hello electronic beauty! I have high hopes for these new units and they may change my opinion slightly on these two platforms, which in anyone’s eyes would be a positive thing.

SETTINGS FTW!

Firing mode can have multiple settings offering up 5 pre-set options: • Semi-semi • Binary-binary • Semi/auto-semi-auto • Semi/burst-semi-burst • Burst/auto-burst-auto

The Burst setting allows you to set up to a 5BB burst. There’s active brake up to 5 levels, 5 being the highest amount this can aid with overspin. With precocking there are 8 levels; 8 would be piston fully cocked rearward. You can decock the piston by holding the trigger in for a few seconds, and by doing this you alleviate any spring tension and the piston will sit fully forward.

You can also set the trigger sensitivity to adjust the amount of travel before the platform fires; this is adjustable on stage 1 and stage 2 separately and up to 5 levels on both ROF reduction up to 5 levels. This can be used purely as a personal choice or can aid active brake to combat any overspin. When it comes to the LiPo/Li Ion alarm this in my eyes should be none adjustable, as it is an indication that you have depleted your battery to a point it needs to be changed. Not so much a problem with Li Ion but more so with LiPo batteries as if you start running a LiPo battery too low you can compromise cell integrity and at that point that they can be volatile…. trust me, this is NOT something that will make your day any better!

DSG mode either is on or off, and this allows the electronic sensor to pick up the dual sector gear. Due to the nature of a DSG, one cycle fires twice as opposed to a single sector which only fires once. Trigger calibration is a must, and calibrating the trigger ensures you have a safe mode and also ensures first stage and second stage can only be accessed by the fire selector.

Last but no means least is the MASTER RESET! If you have made a mistake during the adjustment process and can’t figure out what it is you have done, it may just be quicker to reset the system and start again! If you have made a mistake and you are finding issues with the system, the problem may arise and the unit self-diagnose, giving you a hint as to what the problem is. The manual offers reasons and possible fixes. Once reset the unit will revert back to its original factory settings.

Over the next week or so I shall be attempting to fit both these units into their respective donor platforms with high expectations, so please do stay tuned where I shall go into more detail and report my findings in Issue 145.

For now, if you’d like to know more immediately then please do head on over to the PERUN website www.perunairsoft.pl where you’ll be able to find out more of the tiniest details in relation to these two amazing new bits of tech… and much, much more! AA

AUG

P90

“GOODBYE MECHANICAL MONSTROSITY AND HELLO ELECTRONIC BEAUTY! I HAVE HIGH HOPES FOR THESE NEW UNITS AND THEY MAY CHANGE MY OPINION SLIGHTLY ON THESE TWO PLATFORMS, WHICH IN ANYONE’S EYES WOULD BE A POSITIVE THING”