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4 posters

    Elite Alpha Trooper – Spring replacement and supporting mods

    Jeo
    Jeo


    Posts : 462
    Join date : 2011-01-27
    Age : 34
    Location : Canberra

    Elite Alpha Trooper – Spring replacement and supporting mods Empty Elite Alpha Trooper – Spring replacement and supporting mods

    Post  Jeo Wed May 29, 2013 2:45 pm

    Blue Alpha Trooper!

    Honestly, I never got the obsession with the Alpha Trooper. It's a solid blaster, but I always preferred the Raider myself. Therefore I wasn't super excited about the release of the Elite Alpha Trooper (EAT) as I already had a few Rampages to call my own. I am however apparently in the minority on this front so I grabbed an EAT to see what we could do with it. Today we'll run through a basic air restrictor (AR) removal and replace the spring. Specifically we'll be using a Black Tactical V2 spring which is quite a bit shorter than the stock spring, which means we'll also need to do a few lock removals as supporting mods as well.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8254_zpsdec42dd3

    _________________________________________________________________________
    Tools/consumables needed

    Phillips head screwdrivers
    Drill and 6mm bit
    A long, round hand file
    BTV2 Spring
    Stronger catch spring
    Small flat hand file/Dremel with cutting disc/small modelling saw
    _________________________________________________________________________

    The less than amazing Australian spec grey trigger version. Conveniently, we'll be replacing the de-tuned spring with our new BTV2 anyway.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8256_zpsc0255467

    Start by removing the end cap. It's held on with two screws that are thicker than those in the rest of the blaster.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8259_zpsed0f1521

    Then the priming grip.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8260_zpsc5ef835f

    Then the rest of the screws in the shell.

    The two on the top here are thinner than than the rest.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8262_zpscc958101

    The two on the tactical rail are the same thickness as the standard screw, only shorter.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8264_zpsb3e95182

    And this one in front of the clip well. Same thickness, just shorter.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8266_zps8730f8b9

    Hooray! The inside of the blaster.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8267_zps4a7ad930

    As always, take a minute or two to have a good look around the internals and try to get an understanding of how each part works.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8268_zps8cbc1bea

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8269_zps98a8dcd0

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8270_zpse9b4f90a

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8271_zpsc1d7f964

    Ok then, on with the dis-assembly. Remove the jam door and the top shroud.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8273_zps6fdb93b4

    Then this screw holding the dart tooth in.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8279_zpsbc52fef1

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8281_zps0c8e2003

    So we can remove the dart tooth.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8282_zpseeb6a98b

    Then we can remove the whole breech assembly.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8288_zps18c669c7

    Separate the breech and the plunger.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8289_zps896c6e8f

    Looking down the back of the breech we should find an AR.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8290_zpsac7549c1

    Knock that out with a drill.

    Normally I'd recommend separating the breech from the sled but in this case I just could not get the locator pin free. It's not particularly bad if you don't, you just have to be more careful when drilling through that it doesn't grab and break the mounting point between the breech and the sled.

    Once that's done, clean it up with a hand file.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8292_zps48ea627e

    Then reassemble.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8293_zpsdcd36f86

    Here's the new beefier spring on the bottom compared to the stock spring on the top. See the difference in length? This causes us some problems.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8294_zps44cfd254

    So, lets get back to the shell.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8296_zps956ba9f5

    Remove the trigger bar. It's held in by one screw.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8297_zps29a9becb

    These two locks are the problem.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8298_zpse39a83ff

    Remove both of those.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8299_zps86ba6c91

    Then replace the trigger bar.

    If you're keen you could remove the spring, grind/cut off the front nub, and glue the bar in it's forward position. This would provide added reliability in that when it you pull the trigger, it would fire; but it would also mean the blaster could fire with the breech only half closed, which would cause jams. Provided you're consistent with your priming, and your trigger discipline, you will get improved reliability from your blaster.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8300_zps449bb09e

    Next up is the clip release lock. We need to grind/cut/file this lip off.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8302_zps45d8d9e4

    Like so.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8303_zpsc97a3ce0

    Doing this allows us to depress the clip release button, even when the blaster is primed. This is again necessary due to the shorter main spring.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8306_zps8f3810c0

    See.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8307_zpsd6299f93

    Then reassemble.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8313_zpsb7fdbd43

    One last mod is a stronger catch spring. The new main spring puts a lot more strain on the catch and we need to improve that.

    This spring in particular is one I grabbed from bunnings forever ago to use in a Longshot catch. I have no idea what the product number was unfortunately but it came in a pack of three and has a diameter of 9.35mm and an uncompressed length of 17.75mm.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8314_zps778bf037

    Here it is compared to the stock spring.

    Due to the increased diameter I did have to cut away some of the inside of the shell here, but I'm sure you'll figure out your own requirements based on your chosen spring pretty easily.

    Elite Alpha Trooper – Spring replacement and supporting mods DSCN8315_zps0c687b83

    From here, reassemble and we're done. My camera died right at this point so there's no photos of said reassembly, but I'm sure you can work it out.
    ashrob
    ashrob


    Posts : 11
    Join date : 2012-04-27
    Age : 25
    Location : perth

    Elite Alpha Trooper – Spring replacement and supporting mods Empty Re: Elite Alpha Trooper – Spring replacement and supporting mods

    Post  ashrob Thu May 30, 2013 11:56 am

    very nice mod guide mate, just beat ya to it

    but anyway, in all seriousness, a very clean, and thorough writeup, and in quite a bit more depth than mine. nicely done

    Ashrob.
    Jeo
    Jeo


    Posts : 462
    Join date : 2011-01-27
    Age : 34
    Location : Canberra

    Elite Alpha Trooper – Spring replacement and supporting mods Empty Re: Elite Alpha Trooper – Spring replacement and supporting mods

    Post  Jeo Thu May 30, 2013 3:24 pm

    All good dude. It was honestly seeing yours yesterday that prompted me to copy the post across from my blog. I try to do that as I go but often write a few posts in advance, and don't want to publish it elsewhere first.
    EMEUTIER
    EMEUTIER


    Posts : 74
    Join date : 2011-07-04
    Age : 38
    Location : NSW

    Elite Alpha Trooper – Spring replacement and supporting mods Empty Re: Elite Alpha Trooper – Spring replacement and supporting mods

    Post  EMEUTIER Wed Jun 05, 2013 12:53 pm

    I bought a spring from OWM (ebay) and used your guide to help me install it and remove the air-restictors but I have come to a problem.

    When I put the blaster back together again, when priming the blaster, it seems as though the plunger is not being locked in when the spring is compressed, I can just slide the pump handle back and forward freely.

    The OMW spring was the same length as the stock spring so i did not make those modifications that you needed to.

    One thing I am concerned about is that when I was drilling out the air restrictor, a piece of the plunger tube came off also. Would the shorted tube be causing my problem?
    Here is a pic of the plunger tube and 'extra' piece that came off:
    Elite Alpha Trooper – Spring replacement and supporting mods CameraZOOM-20130605194059916_zps970939f7

    Any help in this matter would be appreciated.
    Jeo
    Jeo


    Posts : 462
    Join date : 2011-01-27
    Age : 34
    Location : Canberra

    Elite Alpha Trooper – Spring replacement and supporting mods Empty Re: Elite Alpha Trooper – Spring replacement and supporting mods

    Post  Jeo Wed Jun 05, 2013 2:03 pm

    Apparently yes. I've heard of that coming off when other people removed the AR but I've done 3 so far and haven't had any problems. I guess glue it back on or glue something inside the plunger head to lengthen the prime.
    Akimbo Assassin
    Akimbo Assassin


    Posts : 394
    Join date : 2010-09-16
    Age : 47
    Location : Sydney, NSW

    Elite Alpha Trooper – Spring replacement and supporting mods Empty Re: Elite Alpha Trooper – Spring replacement and supporting mods

    Post  Akimbo Assassin Wed Jun 05, 2013 5:28 pm

    EMEUTIER wrote:I bought a spring from OWM (ebay) and used your guide to help me install it and remove the air-restictors but I have come to a problem.

    When I put the blaster back together again, when priming the blaster, it seems as though the plunger is not being locked in when the spring is compressed, I can just slide the pump handle back and forward freely.

    Hey Emeutier, it sounds like you are having similar problem as I have. I have also swapped the stock spring with the those OWM spring (as for Retaliator and Rampage), I also experienced the plunger failed to lock in when I primed the pump handle back. The problem is due to the stock catch spring not strong enough to lock the plunger caused by the stronger OWM spring. As mentioned in Jeo's write-up he did swap the catch spring with a stronger one. So if you haven't done so, swap the catch spring. Cheers.


    Last edited by Akimbo Assassin on Thu Jun 06, 2013 11:17 am; edited 1 time in total (Reason for editing : typo)
    EMEUTIER
    EMEUTIER


    Posts : 74
    Join date : 2011-07-04
    Age : 38
    Location : NSW

    Elite Alpha Trooper – Spring replacement and supporting mods Empty Re: Elite Alpha Trooper – Spring replacement and supporting mods

    Post  EMEUTIER Thu Jun 06, 2013 10:35 am

    Thanks for the tips, is was the catch spring that needed to be replaced.

    For future reference, I used a c-510 spring from bunnings.

    Now my blaster shoots like a cannon

    Elite Alpha Trooper – Spring replacement and supporting mods CameraZOOM-20130606172451367_zps267d4bf6
    Akimbo Assassin
    Akimbo Assassin


    Posts : 394
    Join date : 2010-09-16
    Age : 47
    Location : Sydney, NSW

    Elite Alpha Trooper – Spring replacement and supporting mods Empty Re: Elite Alpha Trooper – Spring replacement and supporting mods

    Post  Akimbo Assassin Thu Jun 06, 2013 11:29 am

    EMEUTIER wrote: Now my blaster shoots like a cannon
    I wouldn't call mine a "cannon". I left the AR in as many reported very little increase in performance with it removed, with OMW spring in, tested with hot-glue-tip stock darts, elite darts and blue stinger darts, range only around 45-50 feet in parallel angle. I will only call it a "cannon" if it shoots close to 100 feet

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    Elite Alpha Trooper – Spring replacement and supporting mods Empty Re: Elite Alpha Trooper – Spring replacement and supporting mods

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